Recent posts

#71

MNPowerFlo5 / The MNPowerFlo5 Settings,

Last post by holdmode - December 13, 2025, 01:16:48 PM

Rosie Firmware 25.11.13.08 
MNGP2 Firmware 25.10.12.00
Whiz Bang Jr. connect to Rosie.

correct me battery data if I'm wrong.
Thanks

Battery Configuration

Absorb 56.0v
Absorb Time 0:06
Float 54.0V
Float Time 24:00
EQ 56.1V
EQ Time 0:00
Rebulk 51.2V
Ending Amps 5Amps
Min Charge Temp 0.0c
Max Charge Temp 49.0c
Battery Capacity 200ah
AH Efficiency 98%
AH Cap Temp Comp 0.0%
Chemistry Lithium
Enable Charger soc 80%
Min Temp Comp -0.1 V
Max Temp Comp 0.1V
EQ Temp Comp No
Temp Comp mV/degC 0.0
Temp Comp Ref 25.0C
LBCO Connect 49.0V
LBCO Disconnect 46.0V
LBCO Disconnect 0:01

#72

The "Classic" charge controller / Re: Classic 150 -- no power

Last post by ClassicCrazy - December 13, 2025, 12:07:41 PM

Thanks for the reply. Well -- I came back the controller this morning and realized that I had not reset the circuit breaker in my battery box. I did so and now all is working properly. Palm to forehead.

Thanks again.

Jonathan

We all love easy fixes !

Larry

#73

MNPowerFlo5 / Re: System shutdown...batterie...

Last post by ClassicCrazy - December 13, 2025, 11:26:25 AM

The Victron Smart Shunts are also easy to get the data into monitoring or home automation programs. It is my point of reference for what is really happening with my batteries.
I always thought the Whizbang is also very accurate , but the nice thing about Victron Smart shunt is it works stand alone.
Larry 

#74

The Rosie / Lithium battery setting for Ro...

Last post by qrper - December 11, 2025, 03:33:48 PM

Looks like my lead acid battery is slowly coming to end of life. Might be able to nurse it till spring.

I'm thinking of adding four of the midnite 5kw batteries.

Does anyone have the setting for both the Rosie and the Classic 150?

Mike

#75

MNPowerFlo5 / Re: System shutdown...batterie...

Last post by Brucey - December 11, 2025, 03:13:05 PM

Okay as promised, here is an update on my issue.  I first off want to thank you guys for responding and giving me information based on your knowledge and experience.  I am new to this and have learned a lot over the last year.  I like the challenge, but it can be overwhelming.  So thank you again!!

The issue boiled down to the firmware update.  In the old firmware, the SOC would slowly decalibrate the SOC if you didn't bring the batteries on a regular basis to 100% for the passive balancing.  What is a regular basis?  I was told once in a while, 2-3 times a week, read different forums online and the consensus seemed to be all over the board.  Midnite Power told me today, once a week they should be charged to 100%.  It would be super cool if that was in the battery manual.  So, as I wasn't charging them to 100% on a regular basis, the SOC was out of calibration and the end result ended up in the batteries going to 0% even though the SOC said they were good.  The new firmware is supposed to help manage that better. 

The second issue after this happened, was my generator was not charging the batteries to get me back in service.  It was explained that over time, with generator charging, the frequency can become out of wack, and the inverter only had a small threshold for frequency changes, especially with older generators.  The new firmware has a broader range for frequency changes, thus fixing my generator charging issue.  Everything is working great now and getting charged up!

Again, thank you for the help, especially Larry!!  I truly appreciate it.  Most of the folks on here have a great deal of knowledge to tap into and I am thankful you all are willing to share your knowledge. 

The easiest way to avoid issues where bms soc% deviates from reality is to use a victron smartshunt to monitor soc, as it can pick up very small current that a battery bms may not "see". Then set inverter to shutdown at say 47V, back on at 48V. A smartshunt can also drift but far less than a battery bms. Then a full charge once a week or two should be sufficient to reset to 100%.

This way you won't be caught by surprise with a sudden shutdown.

#76

MNPowerFlo5 / Re: Did MidNite solar drop the...

Last post by Brucey - December 11, 2025, 03:08:56 PM

Hi, gang,

My bank of lead acid batteries are nearing end of life, and I'm thinking of going with lithium cells (batteries) I've always liked MidNite products, and when I looked on their website, I couldn't find the MNPowerflo5 battery listed. Current Connect has some listed, but I'm not about to purchase a obsolete product at $1300 a pop.

Does anyone know if the MNPowerflo5  is currently being sold or has it been dropped?

mike

Its under the Midnite Power brand (versus made in Washington state Midnite Solar products)

https://www.midnitepower.com/

#77

MNPowerFlo5 / Did MidNite solar drop the MNP...

Last post by qrper - December 11, 2025, 11:40:12 AM

Hi, gang,

My bank of lead acid batteries are nearing end of life, and I'm thinking of going with lithium cells (batteries) I've always liked MidNite products, and when I looked on their website, I couldn't find the MNPowerflo5 battery listed. Current Connect has some listed, but I'm not about to purchase a obsolete product at $1300 a pop.

Does anyone know if the MNPowerflo5  is currently being sold or has it been dropped?

mike

#78

The Rosie / Re: Generator Size

Last post by Weldman - December 11, 2025, 07:50:39 AM

Been running the Beta Rosie for about 2 years now, each time an update comes out it is either good or bad on what AAC I can charge my 1010Ah battery. Sometimes it's 18 AAC and pushing in about 80 plus amps other times it's like recent it's only 6 AAC of only 20 something amps. Running 9.5kW generator and wanting to know is my generator too small, what size should I be running or the max I need?

Could it be the variable loads causing this? A few things to note in no particular order
1- Breaker size is king and the Rosie will throttle the charger down to not exceed the breaker size in AC INPUT menu. So on a smaller generator if set properly the charge amps will move around based on the AC Loads
2- Newer code adds some adjustments in generator mode to allow for the full 120A charge so at the same AC Charge rate we would see more DC charge current

I have had this generator since Rosie has came out, the amount of power drawn has only changed by one freezer added to the power load in all the years. Breaker size in the AC INPUT menu has never changed it has always been 60AAC. The only change that is constant and changes is the updates. Each update brings different results of how many amps can go into the battery from charging and I have seen 80A on updates. This is the far worst one yet, I'm on 7 AAC and it's still kicking the generator off after a few minutes of running then picks it back up.

I need to record and post the results with settings I have with a video on here.

#79

The Rosie / Re: Generator Size

Last post by BlackwaterPark - December 11, 2025, 07:23:42 AM

I'm running one of these to charge my batteries versus Rosie (I'd be limited to a 15A 120V input due to how shes setup right now)

https://www.ebay.com/itm/127129496258

I'd suggest multiple units to give you redundancy

I've seen a LOT of people very unhappy with those ecoworthy chargers, as they seem to be very very picky about the THD output of the generator, much like all these inverter chargers. What kind of generator are you running through those?

Mines running via grid as double conversion at 30A output but also ran it on a Honda eu2200i generator for a bit to test, no worries. Mines a v1, the current v2 model also includes a soft ramp function so it doesnt hit generator hard if you have it set for the full 60A output on 240V for example.

There quite a few of us over on diysolarforum using them and I haven't heard of anyone having issues. Any particular forums or threads?

youtube videos is where I'm seeing all the comments on it. There are two videos in which it is tested and doesn't want to work with some generators. I'm guessing they can adjust the firmware though, in order to broaden the range it will accept. If most folk are running quality inverter generators like hondas or yamahas, I doubt you would have a problem, but it's the conventional ones that become an issue...very ubiquitous gensets like the predators and champions.

You are correct, The older firmware would not work with a few AVR's on the market. We spent some time recently and now have not been able to find a generator that does not work, If you find one let us know the make and model and we will procure one to test against.

I look forward to trying mine out in that case, thanks for the update!

#80

The Rosie / Re: Generator Size

Last post by FNG - December 11, 2025, 06:40:43 AM

Been running the Beta Rosie for about 2 years now, each time an update comes out it is either good or bad on what AAC I can charge my 1010Ah battery. Sometimes it's 18 AAC and pushing in about 80 plus amps other times it's like recent it's only 6 AAC of only 20 something amps. Running 9.5kW generator and wanting to know is my generator too small, what size should I be running or the max I need?

Could it be the variable loads causing this? A few things to note in no particular order
1- Breaker size is king and the Rosie will throttle the charger down to not exceed the breaker size in AC INPUT menu. So on a smaller generator if set properly the charge amps will move around based on the AC Loads
2- Newer code adds some adjustments in generator mode to allow for the full 120A charge so at the same AC Charge rate we would see more DC charge current