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General Category => General Discussion => Topic started by: Jacotenente on February 14, 2017, 10:41:31 AM

Title: What are your thoughts on desulfators?
Post by: Jacotenente on February 14, 2017, 10:41:31 AM
Hey guys: Several guys I subscribe to on YouTube have installed the "Battery Extra" desulfator on their battery banks. See the companies site and the one I am talking about: http://www.recovermybatteries.com/ex02-12-48-400.html
They are very pleased with this device. Even "elated" about how well it works. So, I bit-the-bait and ordered one for mine. I reached out to Trojan and their website to inquiry about desulfators...no response from Trojan. Trojan's website says they can cause "more harm than good". Hmmm. Would they say this because they SELL batteries...want you to buy more? So, what are your thoughts?

Chris DIYer
Moore, Oklahoma
Title: Re: What are your thoughts on desulfators?
Post by: Westbranch on February 14, 2017, 12:17:35 PM
Quite a while back I read about one of those type of units, don't remember brand, that conflicted with the CC.... seemed to be some frequency issues and the CC was not charging properly... don't recall if it was a PWM or MPPT... probably on NAWS site
Title: Re: What are your thoughts on desulfators?
Post by: bbrian on February 14, 2017, 02:36:19 PM
Chris,  There are different types of desulfator device available for lead acid batteries. The older ones used a simple high voltage pulse spike that over time would do more harm than good. This is probable the type that Trojan were referring to.

With the dramatic lowering of the cost of components it seems that far more sophisticated devices, that utilise some kind of frequency pulse technology, can now be built at an economical price. The first of these was the "Battery Life Saver" (BLS) but these are restricted to single voltages.

The "Battery Extra" appears to have gone one step further by producing models that are capable of being programed to work with multi voltages and capacities. 

Who knows what will be developed over the next few years.
Title: Re: What are your thoughts on desulfators?
Post by: niel on February 14, 2017, 04:56:13 PM
imo, they're all a waste of time and money.

btw, welcome on your first post bbrian.
Title: Re: What are your thoughts on desulfators?
Post by: Jacotenente on February 15, 2017, 07:17:49 PM
Quote from: Westbranch on February 14, 2017, 12:17:35 PM
Quite a while back I read about one of those type of units, don't remember brand, that conflicted with the CC.... seemed to be some frequency issues and the CC was not charging properly... don't recall if it was a PWM or MPPT... probably on NAWS site

Thanks...just got the desulfator in. Will install it and try it out. I will let everyone know (either on here or on my "Chris DIYer" YouTube page. Trojan never responded back to my inquiry.

If it is a POS..so be it. Esp if it interferes with my three Classics and Outback Power inverter. If it does, might take my AR-15 to it and use it for target practice.

v/r

Chris
Title: Re: What are your thoughts on desulfators?
Post by: Westbranch on February 15, 2017, 11:31:59 PM
working with no interference, working with interference and NOT working are all different...
Have you read the Water treatment for over sulphation of FLAs on NAWS...  I did not have any hope of it working despite the published document that said it can work...

http://forum.solar-electric.com/discussion/351467/water-treatment-for-over-sulfation#latest
Title: Re: What are your thoughts on desulfators?
Post by: Jacotenente on February 16, 2017, 11:11:51 AM
Quote from: Westbranch on February 15, 2017, 11:31:59 PM
working with no interference, working with interference and NOT working are all different...
Have you read the Water treatment for over sulphation of FLAs on NAWS...  I did not have any hope of it working despite the published document that said it can work...

http://forum.solar-electric.com/discussion/351467/water-treatment-for-over-sulfation#latest

Thanks...will take a look at it. Heavy solar FLA batteries "sit" and don't move around...kinda like a human heart. If you sit and don't move around...the arteries tend to cake up and get used to being lazy. Maybe a bad analogy.. .

cGs
Title: Re: What are your thoughts on desulfators?
Post by: off-grid-geeks on February 20, 2017, 01:02:21 PM
Quote from: bbrian on February 14, 2017, 02:36:19 PM
The first of these was the "Battery Life Saver" (BLS) but these are restricted to single voltages.

I have the BLS model, and the basic model is dual voltage, it works on either a 12 volt bank or a 24 volt bank.
When I changed over my bank to 24 volt, I did not have to replace the BLS.

For other voltages, you do need to buy the correct model.

I originally viewed these as 'snake oil' type of devices. Jury is still out, I'm only on year 5 on my bank. If I get to year 8, I'll believe in them. I'm not quite to the point of cutting a battery in half to see if they work.

Fingers crossed.
Title: Re: What are your thoughts on desulfators?
Post by: ClassicCrazy on February 20, 2017, 02:07:54 PM
How will you know if these desulfators work or not ?
Wouldn't the only way be to do a load test on the batteries, then run the desulfator for whatever amount of time, and do another load test to see if the battery capacity got better ?
From what I have read is that once the battery plates sulfate up that is not going to get better . The ways to keep the battery plates from getting sulfated up are not letting the batteries sit in a discharged state for too long ( more than a week I think ) and to make sure that at least every ten days the batteries get a good long absorb cycle to make sure that the electrolyte gets mixed up and the acid doesn't stratify .

Larry
Title: Re: What are your thoughts on desulfators?
Post by: niel on February 21, 2017, 03:27:28 AM


"I originally viewed these as 'snake oil' type of devices. Jury is still out, I'm only on year 5 on my bank. If I get to year 8, I'll believe in them. I'm not quite to the point of cutting a battery in half to see if they work.

Fingers crossed."


if you viewed them as snake oil then why were you foolish enough to buy one?
how are you going to know that it wasn't the keeping up on charges, watering, etc. that didn't make the batteries last as that is what makes them last and not a desulfator?
Title: Re: What are your thoughts on desulfators?
Post by: Westbranch on February 21, 2017, 12:07:28 PM
sort of like a defibrillator, if you didn't have heart attack and had one put in your chest and you were still with us a year later how would  you know if it prevented a heart attack just because you still didn't have one
Title: Re: What are your thoughts on desulfators?
Post by: russ_drinkwater on February 25, 2017, 04:37:41 PM
I did use these when I was trying to bring the sulphated rolls batteries back from the dead.
In all fairness the batteries are now working well and do not collapse under load and take charge well.
Did they help or not? I am unsure.
Worth a try if there is not serious 1000's $$$ involved and a loss would be life changing. :o :D
Title: Re: What are your thoughts on desulfators?
Post by: Westbranch on February 25, 2017, 05:42:04 PM
I did use these when I was trying to bring the sulphated rolls batteries back from the dead.

Yes like the thread over on NAWS about adding water to dead batteries and very methodically recharging at various set points using an old published  document on the procedure

http://forum.solar-electric.com/discussion/comment/365457#Comment_365457..

starts at post 397

document listed  in that post, sec. 2.25
Title: Re: What are your thoughts on desulfators?
Post by: off-grid-geeks on March 01, 2017, 02:05:00 PM
Quote from: niel on February 21, 2017, 03:27:28 AM
if you viewed them as snake oil then why were you foolish enough to buy one?
>:(
Was the insult really necessary?
The reason I made the investment is because I'm more open minded than you, and willing to give the manufacturer the benefit of the doubt and trust them enough to try out their product. Even if it truns out to be snake oil and not work, at least I got some experience ansd learned something for my money.

I have no idea why you chose to reply to my post in the manner you did, but your certainly built a wall between us. If you can't say something nice, then you might want to just keep quiet.

To answer your question, no amount of 'care' for my batteries would get them to 8 years of life. If their SOH is still good at that point, then I will be convinced that there is merit to the product.
Title: Re: What are your thoughts on desulfators?
Post by: off-grid-geeks on March 01, 2017, 02:11:10 PM
Quote from: Westbranch on February 21, 2017, 12:07:28 PM
sort of like a defibrillator, if you didn't have heart attack and had one put in your chest and you were still with us a year later how would  you know if it prevented a heart attack just because you still didn't have one

I don't completely agree with your analogy.
If the case of FLA batteries, being the 'heart' in your analogy, they have a known lifespan of 2-7 years. The 7 year life is with very good care. So, if the defibrillator in your analogy got me more years of life than my known lifespan, then I have good evidence that the extra life is due to the defibrillator (desulfator). If I don't get any extra life, then it did not work.
Title: Re: What are your thoughts on desulfators?
Post by: ClassicCrazy on March 01, 2017, 04:31:54 PM
Quote from: off-grid-geeks on March 01, 2017, 02:11:10 PM
Quote from: Westbranch on February 21, 2017, 12:07:28 PM
sort of like a defibrillator, if you didn't have heart attack and had one put in your chest and you were still with us a year later how would  you know if it prevented a heart attack just because you still didn't have one

I don't completely agree with your analogy.
If the case of FLA batteries, being the 'heart' in your analogy, they have a known lifespan of 2-7 years. The 7 year life is with very good care. So, if the defibrillator in your analogy got me more years of life than my known lifespan, then I have good evidence that the extra life is due to the defibrillator (desulfator). If I don't get any extra life, then it did not work.

The battery dealer told me that flooded East Penn Deka  forklift batteries used for off grid will last 10 to 15 years.  He said he just replaced one that he had sold 15 years ago .

Larry
Title: Re: What are your thoughts on desulfators?
Post by: niel on March 01, 2017, 08:21:16 PM
what insult? did i call you an idiot or did i ask why you knuckled under to your better instinct? this has little to do with open mindedness anyway for would you buy a bridge just because you want to be open minded and trust the seller?

btw, you are dead wrong that no amount of care will make batteries last 8 years as too many have done it and without desulfators.
Title: Re: What are your thoughts on desulfators?
Post by: Halfcrazy on March 02, 2017, 11:06:43 AM
Quote from: off-grid-geeks on March 01, 2017, 02:05:00 PM
Quote from: niel on February 21, 2017, 03:27:28 AM
if you viewed them as snake oil then why were you foolish enough to buy one?
>:(
Was the insult really necessary?
The reason I made the investment is because I'm more open minded than you, and willing to give the manufacturer the benefit of the doubt and trust them enough to try out their product. Even if it truns out to be snake oil and not work, at least I got some experience ansd learned something for my money.

I have no idea why you chose to reply to my post in the manner you did, but your certainly built a wall between us. If you can't say something nice, then you might want to just keep quiet.

To answer your question, no amount of 'care' for my batteries would get them to 8 years of life. If their SOH is still good at that point, then I will be convinced that there is merit to the product.
I, Like Off Grid Geek, will buy things just because I am curious if they work or not so to say we are foolish is sort of out of line IMHO. A lot of us do this as we want to see if there may be any truth to what some one claims.

On a different subject, My engineers always told me that todays MPPT chargers ARE desulfators. It has to do with the high frequency switching pulses they hit the battery with (just like most of today's desulfators). I can neither confirm nor deny the claim of desulfators but IMHO proper care and feeding of a lead acid battery will ultimately give you the longest life possible, That said if you have a few sulfated batteries for whatever reason WHY not try?
Title: Re: What are your thoughts on desulfators?
Post by: TomW on March 02, 2017, 11:40:28 AM
Quote from: Halfcrazy on March 02, 2017, 11:06:43 AM
I, Like Off Grid Geek, will buy things just because I am curious if they work or not so to say we are foolish is sort of out of line IMHO. A lot of us do this as we want to see if there may be any truth to what some one claims.

On a different subject, My engineers always told me that todays MPPT chargers ARE desulfators. It has to do with the high frequency switching pulses they hit the battery with (just like most of today's desulfators). I can neither confirm nor deny the claim of desulfators but IMHO proper care and feeding of a lead acid battery will ultimately give you the longest life possible, That said if you have a few sulfated batteries for whatever reason WHY not try?

Yeah, if nobody tried "new stuff" we would still be walking on the African savanna trying to find food and fend off lions and hyenas with only our teeth and hands. Actually, still in the trees.  ::) No offense to creationists out there!

I am not so much of an early adopter these days but I often bought stuff to check out new theories / products, etc in my youth.

Sadly, age has a way of making some folks grumpy know it alls. Hint Hint.

That is my story and I am sticking with it!

Tom
Title: Re: What are your thoughts on desulfators?
Post by: off-grid-geeks on March 02, 2017, 01:31:38 PM
Quote from: ClassicCrazy on March 01, 2017, 04:31:54 PM
The battery dealer told me that flooded East Penn Deka  forklift batteries used for off grid will last 10 to 15 years.  He said he just replaced one that he had sold 15 years ago .

Larry

That's great to know, thanks Larry!
So in theory, a desulfator on those forklift batteries might get you to 20 years.

The FLAs I used in my 2-7 year lifespan were common GC2 style deep cycle batteries. Sure wish I had those forklift batteries!
I just wish it was a bit easier to move those things around and to get rid of them when replacing them. :-)
Title: Re: What are your thoughts on desulfators?
Post by: off-grid-geeks on March 02, 2017, 01:36:53 PM
Quote from: Halfcrazy on March 02, 2017, 11:06:43 AMOn a different subject, My engineers always told me that todays MPPT chargers ARE desulfators. It has to do with the high frequency switching pulses they hit the battery with (just like most of today's desulfators). I can neither confirm nor deny the claim of desulfators but IMHO proper care and feeding of a lead acid battery will ultimately give you the longest life possible, That said if you have a few sulfated batteries for whatever reason WHY not try?

Until you mentioned this, I had never thought about this concept. I can see how it is probably valid.
I should through an oscilloscope across the batteries and see how the MPPT charge compares to the desulfator signal, compare the frequencies and voltages.

Thanks for sharing this!
Title: Re: What are your thoughts on desulfators?
Post by: ClassicCrazy on March 02, 2017, 02:10:55 PM
Quote from: off-grid-geeks on March 02, 2017, 01:31:38 PM
Quote from: ClassicCrazy on March 01, 2017, 04:31:54 PM
The battery dealer told me that flooded East Penn Deka  forklift batteries used for off grid will last 10 to 15 years.  He said he just replaced one that he had sold 15 years ago .

Larry

That's great to know, thanks Larry!
So in theory, a desulfator on those forklift batteries might get you to 20 years.

The FLAs I used in my 2-7 year lifespan were common GC2 style deep cycle batteries. Sure wish I had those forklift batteries!
I just wish it was a bit easier to move those things around and to get rid of them when replacing them. :-)

I am guessing lifespan of a battery is much related to  chemistry and composition of the lead plates. And of course how much and for how long they are discharged . The new crystal lead batteries I recently got claim that they won't sulphate up if left in low discharge states and they relate that to the chemistry. But they still have a useful life expectancy based on how deep they are discharged and just as importantly how warm  or cool they are . The warmer they are the less life that they will perform at specs because the chemical processes are sped up. I believe that is true with most all lead batteries - better not to let them get too warm.  The battery dealer I know renovates fork lift batteries. They load test each cell and will replace the ones that are failing with another used one with comparable performance. And he says it is most often the cells in the center of the battery pack that fail because they get warmer than the ones around the perimeter that will stay cooler.

Larry
Title: Re: What are your thoughts on desulfators?
Post by: niel on March 02, 2017, 04:30:16 PM
Quote from: Halfcrazy on March 02, 2017, 11:06:43 AM
Quote from: off-grid-geeks on March 01, 2017, 02:05:00 PM
Quote from: niel on February 21, 2017, 03:27:28 AM
if you viewed them as snake oil then why were you foolish enough to buy one?
>:(
Was the insult really necessary?
The reason I made the investment is because I'm more open minded than you, and willing to give the manufacturer the benefit of the doubt and trust them enough to try out their product. Even if it truns out to be snake oil and not work, at least I got some experience ansd learned something for my money.

I have no idea why you chose to reply to my post in the manner you did, but your certainly built a wall between us. If you can't say something nice, then you might want to just keep quiet.

To answer your question, no amount of 'care' for my batteries would get them to 8 years of life. If their SOH is still good at that point, then I will be convinced that there is merit to the product.
I, Like Off Grid Geek, will buy things just because I am curious if they work or not so to say we are foolish is sort of out of line IMHO. A lot of us do this as we want to see if there may be any truth to what some one claims.

On a different subject, My engineers always told me that todays MPPT chargers ARE desulfators. It has to do with the high frequency switching pulses they hit the battery with (just like most of today's desulfators). I can neither confirm nor deny the claim of desulfators but IMHO proper care and feeding of a lead acid battery will ultimately give you the longest life possible, That said if you have a few sulfated batteries for whatever reason WHY not try?

it was not i who said he viewed them as snake oil and bought it anyway. nor did i call him a name. saying he was foolish if he believed that and bought it anyway now if that's out of line for me to comment about then so be it. that wasn't just giving it a try as he believed it no good.

i am aware of the controllers all switching and sending pulses to the batteries and how does an EXTRA desulfator help this?

btw ryan, if you think there's a problem then pm me.
Title: Re: What are your thoughts on desulfators?
Post by: russ_drinkwater on March 06, 2017, 04:01:17 PM
I have seen claimed lives of 20 years plus on some forklift battery packs coming from the owners.
Take it with a grain of salt.
You have to have plante plate style batteries for long life no matter what other people claim!
The heavier the plates the longer they will last in theory.
Title: Re: What are your thoughts on desulfators?
Post by: CDN-VT on March 06, 2017, 10:13:56 PM
Quote from: russ_drinkwater on March 06, 2017, 04:01:17 PM
I have seen claimed lives of 20 years plus on some forklift battery packs coming from the owners.
Take it with a grain of salt.
You have to have plante plate style batteries for long life no matter what other people claim!
The heavier the plates the longer they will last in theory.
AS LONG as you can have the charge to BOIL the water off .
forklift battery packs use HUGE amps or C25%+ to get the action happening !!
Trickle in amps the forklift battery is on a death spiral !!

Playing this LiP-ION test , It's fused & in it's own fire brick area , right beside the bedrooms (joke out of NA) ;)
It's the voltage stabilization that these cells freak out at .

VT
Title: Re: What are your thoughts on desulfators?
Post by: off-grid-geeks on March 07, 2017, 02:48:20 PM
Quote from: CDN-VT on March 06, 2017, 10:13:56 PM
AS LONG as you can have the charge to BOIL the water off .
VT

It is reported that a simple boil will break off the sulphation in flakes, which sink to the bottom of the cell where they eventually pile up. Once the pile is tall enough to reach the bottom of the plates, they short out and the cell ceases to function.

Compared to boiling (which IS good to stir the solution and reduce stratification), the action of the desulphator supposedly dissolves the sulphation back into solution.

I'm only repeating what the manufacturers are saying when comparing simple boiling to their products. I'm not saying its true.
Title: Re: What are your thoughts on desulfators?
Post by: Vic on March 07, 2017, 03:26:37 PM
Quote from: off-grid-geeks on March 07, 2017, 02:48:20 PM

It is reported that a simple boil will break off the sulphation in flakes, which sink to the bottom of the cell where they eventually pile up. Once the pile is tall enough to reach the bottom of the plates, they short out and the cell ceases to function.

Compared to boiling (which IS good to stir the solution and reduce stratification), the action of the desulphator supposedly dissolves the sulphation back into solution.

I'm only repeating what the manufacturers are saying when comparing simple boiling to their products. I'm not saying its true.

Just my opinion,  but  the shorting mechanism for FLAs is from Mossing (of lead particles from plate erosion).   This debris can Moss on the tops of plates,  and around the lead busses that connect the plates together.

OR,  from the plate debris that falls to the bottom of the cells,   and could cause a short.

IMO,  the sulfates are bound onto the plates,   and need to be removed by fully-charging the battery bank,  and on occasion,  from EQing the battery.

Have seen eroded plate debris in Flooded batteries,   but have never seen anything that looks like it was any sulfur compound.

Shorting from Mossing can be reduced if the battery envelopes the plates,   and also uses a Moss Guard on top of the plates.

Not to nit-pick too much,  just my opinions,   FWIW,   Vic
Title: Re: What are your thoughts on desulfators?
Post by: dgd on March 07, 2017, 10:08:24 PM
Quote from: off-grid-geeks on March 07, 2017, 02:48:20 PM

It is reported that a simple boil will break off the sulphation in flakes, which sink to the bottom of the cell where they eventually pile up. Once the pile is tall enough to reach the bottom of the plates, they short out and the cell ceases to function.

No, I don't think this is true. I have been able to observe many many times several sets of batteries, from Varta 2v 1400aH to 2v 800aH Australian Solar cells to 4v and 6v german IMG cells, all in clear see through plastic containers and NEVER ever have i seen lumps or flakes of anything, sulphate or whatever, break off any of the plates or matting or seperators or terminal poles and pile up on the bottom of the cell.
I have OTOH observed an extremely slow build up of mud sludge material in cells but it would never come anywhere near the plate bottoms.
I also do not know what a slow boil is, do youmean the normal bubbling seen during bulk absorb and float charging?

Quote
Compared to boiling (which IS good to stir the solution and reduce stratification), the action of the desulphator supposedly dissolves the sulphation back into solution.

You mean EQ where charging is more vigorous? Yes that stirs things up and will often reabsorb some of that soft mud in the bottom of the cell.
As for those desulphators i think your original 'snake oil' thought may have been more valid.
Most of the ads I saw for them referred to bringing dead sulphated batteries back to life.
A friend was so convinced he bought a few dozen well dead floor sweeper L16s and after 3 months running with several desulphators and a grunty transformer based charger managed toget exactly three out of 42 batteries up to a useable condition. After a further few weeks they died anyway.

Quote
I'm only repeating what the manufacturers are saying when comparing simple boiling to their products. I'm not saying its true.

Dont sales people always tell the truth?

Dgd
Title: Re: What are your thoughts on desulfators?
Post by: off-grid-geeks on March 08, 2017, 11:40:44 AM
Thanks for the replies! Good shared experiences.
Actual observation is worth a lot...
Title: Re: What are your thoughts on desulfators?
Post by: Jacotenente on March 08, 2017, 01:28:42 PM
Stay tuned. Doing a 1-month test on the "Battery Extra" desulfator. Shot a video (a "before and after" type deal soon). All batteries were topped off, no "tweaks" to the three Classics, original battery vent caps. Not a scientific test at all...but, should provide some kind of insight through observation, water use, and general "gut feeling" of how this desulfator is (or is not) performing. In about a week...there will be a video on my YouTube channel.

Chris
Title: Re: What are your thoughts on desulfators?
Post by: russ_drinkwater on March 10, 2017, 12:53:32 AM
The "sludge" in the bottom of the battery waste collection compartment is not sulphate and is mainly particles from the plates in the batteries as they age. With sufficient charge the sulphate removed from the plates should be returned to the acid suspension.
I stand corrected if I am wrong.
If the plates do not deteriorate then there should not in theory be a build up of particles in the battery.
Title: Re: What are your thoughts on desulfators?
Post by: Jacotenente on March 26, 2017, 09:39:07 AM
As promised:

https://www.youtube.com/watch?v=4AfXicgMfpA&t=9s
Title: Re: What are your thoughts on desulfators?
Post by: CDN-VT on March 26, 2017, 04:18:12 PM
So Chris ,did you really see a difference in the view of the plates ? Your's look so nice & straight .
My 8Vdc golf cart ones are in sad shape . I'll see If I can take a picture .
You video of your cells looked great .
VT
Title: Re: What are your thoughts on desulfators?
Post by: russ_drinkwater on March 26, 2017, 04:46:40 PM
Nice vid Chris I keep an open mind as to their value!
I am going to connect mine backup for a few months to both banks.
Title: Re: What are your thoughts on desulfators?
Post by: Jacotenente on March 26, 2017, 05:10:49 PM
Quote from: CDN-VT on March 26, 2017, 04:18:12 PM
So Chris ,did you really see a difference in the view of the plates ? Your look so nice & straight .
My 8Vdc golf cart ones are in sad shape . I'll see If I can take a picture .
You video of your cells looked great .
VT

Yes, the plates (after one month) looked cleaner and did not sulfate. No real performance difference that I can tell. In fact, I was working on some new 2/0 battery cables this AM...and checking EACH individual battery voltage (with a true RMS Fluke multimeter), cells, water level, and vent cap sludge. Here is what I came up with:
Battery voltages: the maximum voltage variation for all 12 batteries was a .06v (6/100th of a volt). Everything was disconnected, no load, and resting for an hour. So, very pleased.
Cell: Looked clean. Spongy material, plates, etc looked a billion times better than what I see in your pictures.
Water level: NSTR...all good
VENT cap sludge: minor...a little film

Hope this helps. I think the Battery Extra is worth consideration...esp the way your cells look. Mine looked really dirty before. And now, they look clean. Def NOT sulfating. Mine stays on 24/7 @ 400 mA setting. However, I took my clamp meter to the Battery Extra POS lead and it showed 200 mA. So, dunno about that.

v/r
Chris
Title: Re: What are your thoughts on desulfators?
Post by: CDN-VT on March 26, 2017, 06:21:15 PM
Chris , looking at your video again ,Am I seeing that the unit is powered by your battery bank only ?
No external powers ?
http://www.recovermybatteries.com/ex01-12-48-200.html

This one looks to be sealed  ,but the next model up is yours and looks like you can view the internals .
I did read the instruction manual But just to be sure,

VT

Also how long did it take to receive after you paid?
In Canada under the commonwealth , our post is so slow & I know they will use the Canadian extortion of  PAY US or you can't have it.
This is a huge problem in Canada with our customs , they want a tariff/duty/something .
I was going to send it to my Washington address.
VT 

PS Chris , left a Thumbs UP for ya on your channel
Title: Re: What are your thoughts on desulfators?
Post by: ClassicCrazy on March 26, 2017, 06:37:32 PM
Chris - do you ever take specific gravity readings of all your cells ?
It would have been interesting to see any differences in SG readings before and after , might tell if it had made any difference on low cells.

Larry
Title: Re: What are your thoughts on desulfators?
Post by: Jacotenente on March 27, 2017, 08:42:47 AM
Quote from: CDN-VT on March 26, 2017, 06:21:15 PM
Chris , looking at your video again ,Am I seeing that the unit is powered by your battery bank only ?
No external powers ?
http://www.recovermybatteries.com/ex01-12-48-200.html

This one looks to be sealed  ,but the next model up is yours and looks like you can view the internals .
I did read the instruction manual But just to be sure,

VT

Also how long did it take to receive after you paid?
In Canada under the commonwealth , our post is so slow & I know they will use the Canadian extortion of  PAY US or you can't have it.
This is a huge problem in Canada with our customs , they want a tariff/duty/something .
I was going to send it to my Washington address.
VT 

PS Chris , left a Thumbs UP for ya on your channel

Thanks! I paid them via PayPal and the unit came in about a week from England. I am in Oklahoma. Looks like the company absorbed all the fees, tariffs, etc. I have a buddy in Ontario and wanted to send him a part (very small). The tariffs from the US to Canada are unreal. Why? Esp, for provinces that border the states? Seems like shipping to Europe is cheaper. Messed up IMO. Canada/US are like a close family members...shouldn't have to deal with this.

cGs
Title: Re: What are your thoughts on desulfators?
Post by: Jacotenente on March 27, 2017, 08:58:42 AM
Quote from: ClassicCrazy on March 26, 2017, 06:37:32 PM
Chris - do you ever take specific gravity readings of all your cells ?
It would have been interesting to see any differences in SG readings before and after , might tell if it had made any difference on low cells.

Larry

Haven't done a refractometer SG test (yet). Should have done that...I have a refractometer.

Chris
Title: Re: What are your thoughts on desulfators?
Post by: CDN-VT on March 27, 2017, 10:48:27 PM
Ordered one , Sent to the USA / Arlington WA & I hope it get's there by the 5th / 05/04/2017  .. Tight ,
VT

Got A e-note , its rushed out & were hoping
Title: Re: What are your thoughts on desulfators?
Post by: Robin on March 30, 2017, 01:55:24 AM
I will tell you all I know about desulfators. All the electrical engineers I have worked with in the Solar industry over the past 30 years are skeptical for a couple of reasons.
1. they are not powerful enough to do much of anything.
2. A charge controller also vibrates the plates, but with a lot more power, so a desulfator would be insignificant.

I asked a Trojan engineer about these things about ten years ago. They had actually done a study on them. This is what he had to say.
Yes, they can help rejuvenate a sulfated battery.
They will destroy a good battery if left on continuously.

There ya go.
Title: Re: What are your thoughts on desulfators?
Post by: CDN-VT on March 30, 2017, 10:22:29 PM
Thanks Robin
So I'll give the unit a whirl & see after a few months what comes !
I have bought & learn't / broken & learn't ..


Glad ya posted Up !!
VT/Nig`

Best forward thoughts on the Maine post also
Title: Re: What are your thoughts on desulfators?
Post by: Jacotenente on April 02, 2017, 05:07:20 PM
Quote from: Robin on March 30, 2017, 01:55:24 AM
I will tell you all I know about desulfators. All the electrical engineers I have worked with in the Solar industry over the past 30 years are skeptical for a couple of reasons.
1. they are not powerful enough to do much of anything.
2. A charge controller also vibrates the plates, but with a lot more power, so a desulfator would be insignificant.

I asked a Trojan engineer about these things about ten years ago. They had actually done a study on them. This is what he had to say.
Yes, they can help rejuvenate a sulfated battery.
They will destroy a good battery if left on continuously.

There ya go.

Thank you for this! I will heed your advice! And I agree.

Chris
Title: Re: What are your thoughts on desulfators?
Post by: CDN-VT on April 02, 2017, 09:17:19 PM
Chris
Mine should make it in Arlington WA next week , and as were back into SUN !!! Ya !! I will use this on that ugly pix I posted of my batterys & take all reading of SG etc. Elly , the golf cart with mobile power had abused 8Vdc trogens & when I first got it. I had to pressure wash the batterys & clean the cart before adding water of 5L added to 6/8Vdc ,all plates exposed & im sure just charged for the garage sale. Good test Cells to see if anything can come . Since I use this on the ranch , most elly has trails is 2.5 miles ,so last year at the end of the ranch back to the house , she still worked  but slow & 45Vdc on gauge. SG was low also , but has increased from first days  till DEC 2016 & I just woke it up from hibernation ..
So we will see.

VT
Title: Re: What are your thoughts on desulfators?
Post by: russ_drinkwater on April 05, 2017, 05:04:20 PM
Like all things. A bit is ok, but a lot more can be harmful. (Too much love will kill you)
Good advice and thanks for that Robin!
Title: Re: What are your thoughts on desulfators?
Post by: Jacotenente on April 06, 2017, 07:49:36 PM
Quote from: russ_drinkwater on April 05, 2017, 05:04:20 PM
Like all things. A bit is ok, but a lot more can be harmful. (Too much love will kill you)
Good advice and thanks for that Robin!

Hahaaa....good one.
Title: Re: What are your thoughts on desulfators?
Post by: russ_drinkwater on April 07, 2017, 05:15:14 PM
Boom boom!
Hey how old are your L16's Chris?
Title: Re: What are your thoughts on desulfators?
Post by: Jacotenente on April 08, 2017, 06:31:46 PM
All are less than 1.5 years old. I will wire that desulfator in...but, the fuse will be pulled. It works, but am not going to keep it on 24/7. Right now I am rewiring/rebuilding my system. Using a MNDC250PLUS, #4 and #6 THHN wire, new polarized DC breakers (don't get me started on that), and a few other things. Not going to put the shunt/WBJr inside the MNDC250...using a NEG buss-bar for the PV negatives.

Chris
Title: Re: What are your thoughts on desulfators?
Post by: CDN-VT on April 09, 2017, 10:24:05 PM
I will make mine mobile , Same style of quick connects I use between 5 solar setups . Hence the buy 12Vdc to 96Vdc & 800+AH

VT