MichaelPlace
New Member
- Joined
- May 12, 2021
- Messages
- 10
I’m posting to ask why my BMS overvoltage and single cell overvoltage continue to keep going off.
So to start, my family and I just moved off grid to build a house in the Ozark of Arkansas. We are currently living in a Fifth wheel trying to get everything situated before we begin our build.
Set up: I have 3 295 watt solar panels connect to a 80amp MPPT Epever tracer controller. I’m running a 120ah Nithin 3.6V converted into a 24V system with an 100AH Overkill BMS on the battery. Then my inverter is a 2000/4000 Giandel Pure Sine inverter. I’ve got my control parameter settings at
100AH on the controller
Over charge Disc. At 31.0V
Charge limit at 29.0V
Over charge Rec. at 29.4V
Equal charge at 29.0v
Boost charge 29.0v
Float charge 27.6v
Boost eec. At 26.4v
Low volt. Rect. 25.6v
Under volt rect at 24.5v
Under volt warn 23.0v
Low volt disc at 22.2v
Discharge limit 21.2v
Equalize time at 180min
Boost time at 120min
so every time my battery gets fully charged and left to float at a certain time after a while of it fluctuating between charge and discharge once at 100% the inverter begins to get set off to say OV (over voltage) and triggers off my BMS to register either single cell overvoltage or BMS overvoltage I’m not sure if it’s the settings I’ve chosen or what I can do to trust leaving this system alone for the day while at work any wisdom would help greatly.
here are some pictures and also the inverter is plugged in to a 30amp extension to a 50amp fifth wheel
So to start, my family and I just moved off grid to build a house in the Ozark of Arkansas. We are currently living in a Fifth wheel trying to get everything situated before we begin our build.
Set up: I have 3 295 watt solar panels connect to a 80amp MPPT Epever tracer controller. I’m running a 120ah Nithin 3.6V converted into a 24V system with an 100AH Overkill BMS on the battery. Then my inverter is a 2000/4000 Giandel Pure Sine inverter. I’ve got my control parameter settings at
100AH on the controller
Over charge Disc. At 31.0V
Charge limit at 29.0V
Over charge Rec. at 29.4V
Equal charge at 29.0v
Boost charge 29.0v
Float charge 27.6v
Boost eec. At 26.4v
Low volt. Rect. 25.6v
Under volt rect at 24.5v
Under volt warn 23.0v
Low volt disc at 22.2v
Discharge limit 21.2v
Equalize time at 180min
Boost time at 120min
so every time my battery gets fully charged and left to float at a certain time after a while of it fluctuating between charge and discharge once at 100% the inverter begins to get set off to say OV (over voltage) and triggers off my BMS to register either single cell overvoltage or BMS overvoltage I’m not sure if it’s the settings I’ve chosen or what I can do to trust leaving this system alone for the day while at work any wisdom would help greatly.
here are some pictures and also the inverter is plugged in to a 30amp extension to a 50amp fifth wheel
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