Recent posts

#11

New Product Ideas and Discussion / Stand-alone AFCI device/module

Last post by Solar-Dad - August 16, 2026, 12:21:15 AM

Hi,

Many people (me included) have purchased SRNE-based inverters that are re-branded and sold under a variety of brand names. I have a 10kW SRNE ASP-based Eco-Worthy inverter that does not include arc-fault interruption ability on PV inputs. Given the chance of poorly (self) made, or cheap MC4 connectors being used in multiple lengthy PV strings we see these days, it would be nice to be able to add AFCI functionality to my system without having to buy a whole ($$$$) new inverter.

I didn't realize, when I purchased the Eco-Worrhy inverter, that it didn't have AFCI functionality on the PV input. I had read that all inverters had that ability. Given the fact that most PV-related fires start with faulty MC4 connectors arcing, this would be a GREAT SAFETY FEATURE that MANY people would be willing to add to their PV systems. I know I would jump at the chance to add another layer of safety for a reasonable amount of $$d.

If you can produce in plug-in module that goes between the PV strings and the inverter, you should already have a sizeable market that already exists (and may not even know what they're missing!)

Thanks,
Dave Kajmo
dkajmo@gmail.com

#12

The "Classic" charge controller / Re: Midnite Classic 200 displa...

Last post by Wizbandit - August 13, 2026, 12:42:14 PM

Holding LEFT ARROW and ENTER at the same time brings up this screen. TOP Center number is RFR aka Reason For Resting so we can see what is making the Classic REST aka Not Charging.

111 is normal Power Up wait for sun.

#13

The Rosie / Re: Trying to figure this out....

Last post by bigbillsd - August 13, 2026, 12:22:48 PM

Ryan, are you saying there is a Rosie Firmware 26.05.01.00?   I do not see that in the firmware thread above these threads?  The newest looks to be the v25 one I am currently running. 

#14

The Rosie / Re: Charging Power

Last post by bigbillsd - August 13, 2026, 12:17:37 PM

What I am gathering from this info is no one will be able to get more than 60 amp charging with Onan Generators installed in our Motorhomes unless they have 10,000 Watt or larger generators. 

I would think they could fix that so the standard Onan generators that produce two legs of 120v, (120/120v) could charger the batteries at 120a..

Till then we need to run our Generators twice as long.  (which sucks!) 

 

#15

The Rosie / Re: Trying to figure this out....

Last post by FNG - August 13, 2026, 11:53:53 AM

Your screen shows it asking if you want to update ROSIE to 26.05.01.00 and the second screen shot shows your ROSIE on 25.11.13.08 so not sure I see an issue? The numbers are dates so the old Rosie code you have was 2025, November 13th and the 8 compiling of that day where the new one is 2026, May 1st and the 1st compiling of the day

#16

The Rosie / Re: Charging Power

Last post by FNG - August 13, 2026, 11:46:23 AM

So the issue:
When in 120/120 Mode Rosie assumes it is being fed form a single pole breaker (IE 120/120). It then takes the values and divides them by 2 so 26A AC CHARGE is 13A per side and 60A breaker size is 30A per side of Rosie

This limits charge to around 60A DC by default

In order to get the 120A DC you need 120/240 or 120/208 feeding the Rosie

#17

The Rosie / Re: Charging Power

Last post by Brucey - August 13, 2026, 10:09:13 AM

Both 120v legs are fed into the rosie from the Genny.  In a single phase, that is just how my QD7500 works, it produces two legs of 120v, not 2 legs of split phase.  So they cannot produce 240v like I can with a 50amp shore power feed.  I do not have shore power so I cannot verify that i saw 6000 watts charging the batteries.  But that is what their rating of 120a charging would produce, and I believe I had seen that in the past.   
I rarely charge the battery pack when we are in a campground and have power as we wouldn't be using much battery then.  But I have, and I am pretty sure I had seen the 6000+ watts going in on both SA and VRM.

This week we are in a parking lot on the Jersey Shore and its hot so the A/C is on a lot sucking the batteries down rapidly requiring the Genny to supplement the power and charger the battery too.

When we are running the Genny AND the AC I see 2200+ watts going into the battery,  when the AC is not on I see about 3200 watts going into the battery. 

So just charging the battery (no AC running) its taking twice the genny run time than I would expect to recharge the batteries as the charger is producing 1/2 its rated capacity. 

Since it seems the Rosie has been explained by MN support as 2 3500 watt inverter/chargers I would think  both running would be able to output a total of 120a to the battery. 


Are you able to change that setting of 26AAC to higher on your rosie?

-Bill   

-Bill


-Bill

Ok so you have both legs of 120V connected to ac input l1 and l2?

And the Rosie in 120V/120V mode?

And l1 and l2 ac output connected to either side of your load panel?

#18

The Rosie / Trying to figure this out...

Last post by bigbillsd - August 12, 2026, 11:40:10 AM

Is there a new Rosie Firmware?  When I click on the Rosie Firmware in the list, this dialog comes up saying there is a new Rosie firmware with a similar version # as the MNGP2.  Or is this a bug in the Midnite IOS app?   It looks similar to what I see when I click on the Green MNGP2 choices for updates. 

-Bill

#19

The Rosie / Re: Charging Power

Last post by bigbillsd - August 12, 2026, 08:35:18 AM

Both 120v legs are fed into the rosie from the Genny.  In a single phase, that is just how my QD7500 works, it produces two legs of 120v, not 2 legs of split phase.  So they cannot produce 240v like I can with a 50amp shore power feed.  I do not have shore power so I cannot verify that i saw 6000 watts charging the batteries.  But that is what their rating of 120a charging would produce, and I believe I had seen that in the past.   
I rarely charge the battery pack when we are in a campground and have power as we wouldn't be using much battery then.  But I have, and I am pretty sure I had seen the 6000+ watts going in on both SA and VRM.

This week we are in a parking lot on the Jersey Shore and its hot so the A/C is on a lot sucking the batteries down rapidly requiring the Genny to supplement the power and charger the battery too.

When we are running the Genny AND the AC I see 2200+ watts going into the battery,  when the AC is not on I see about 3200 watts going into the battery. 

So just charging the battery (no AC running) its taking twice the genny run time than I would expect to recharge the batteries as the charger is producing 1/2 its rated capacity. 

Since it seems the Rosie has been explained by MN support as 2 3500 watt inverter/chargers I would think  both running would be able to output a total of 120a to the battery. 


Are you able to change that setting of 26AAC to higher on your rosie?

-Bill   

-Bill


-Bill

#20

The Rosie / Re: Charging Power

Last post by Brucey - August 12, 2026, 08:00:05 AM

Presumably in 120/120 mode the AAC setting is dealing with amps at 120V, i.e set to 26A that would deliver 26x120=3120W? Why not increase charge rate to max?

I cannot get it to go over 26AAC,  its the same with either topology.  Do you know of a way to make it go higher?   -Bill

I emailed Ryan about the 120v/120v mode, basically need to feed 120V into both L1 and L2 and then take both l1 and l2 output and run to load center:

"Yes if you want the full 7KW you need to connect L1 and L2 together

Feed the 120V generator to both L1 and L2 and feed L1 and L2 out to the load center."