what is your solar panel power? you could using a AC converter to charge the battery. Normally, if the battery fully charged, the voltage should be around 14V.

you could contact us for BMS replacement.

Please send an email to sales@sokbattery.com, and i would help you fix this issue.

in fact, this battery app has a function name sleep mode, if not using in 6 hours, it would go to sleep mode, you cannot connect the app. just charge or discharge the battery, it would go back to work. you could check the details here: https://www.youtube.com/watch?v=8vE2uzgkoWs

  https://www.youtube.com/watch?v=9s2nw107oBY&t=120s

  https://www.youtube.com/watch?v=9s2nw107oBY&t=120s

when you connect batteries in series, there are 2 things very important. the 1) do pre-charge before connect on inverter. 2) add the battery voltage balancer.

try this: https://www.youtube.com/watch?v=9s2nw107oBY&t=120s

em, new battery BMS has a sleep mode, if no using in 6 hours, it would go to sleep mode, once you using it, charge it or discharge it, it would be back to work.

sure, you could check here: http://support.sokbattery.com

very strange, could you send me a video? Thank you.

First. myself and many other users are struggling with lack of response or support regarding the ABC-BMS app used for your heated batteries. This is not true, you sent us the first email on April 29,2022, and we replied you in 1 hour, and then you replied on the same time, and we replied again on the same day. Not sure why you said no response or support. Second, the parameter setting password is NOT for buyer using, this is for manufacturer using.

for a low level of vibration is fine, no any issue... what we worry about this, close to a diesel engine...

one question: did you add the battery voltage balancer on your system? like this: https://www.victronenergy.com/upload/documents/Datasheet-Battery-Balancer-EN.pdf

I think it takes 2 or 3 charge cycles for the batteries to balance and reach true full charge.

where you read it 12.7%, from the Qwork monitor？

I guess yes, please send us an email with your phone number, will make a call to help you, email sales@sokbattery.com or call us at 725 765 2879

if this is not a vibrative location,and temperature is not high, I think should be fine.

You could search the APP on google or apple store, name is ABC-BMS

Normally this is the setting issue. If BMS has issue, it would completely stop take a charge or discharge.