I have the 140 ah battery, bigger BMS system and different charging capacities according to Time USB messages sent to me. According to them the battery can handle a 2c charge rate but not recommended for longest life.
I have the 140 ah battery, bigger BMS system and different charging capacities according to Time USB messages sent to me. According to them the battery can handle a 2c charge rate but not recommended for longest life.
The BMS did its job..it turned off the battery when either the total voltage went below a limit or one of the cells went below the limit. The problem is, the cells keep self discharging even after the BMS turns off so the cells continued to self discharge over winter until they got to a point where they are unrecoverable.
Per month!
How much current can it put out? I wouldn't go over 50% to a DC to DC converter.
Start a new thread . . . sounds like it is a topic of its own.
Interesting. I have two lifepo4 batteries wired in series 12 volt 100 amp hour. I didn’t check the exact voltage before I put the boat in storage what I do know is they were only about half charged. We had a brutally cold winter here. When I got the boat out this spring the batteries were fine. Nothing went to sleep. Plugged in the NOCO and they still showed half charged.
It is my understanding that storing them in the cold is not an issue as long as no charging or discharging is being done.
On my liturature, it mentions no charging or discharging below 32 or the BMS will shut it down. It is recommended to store above what equals 15 degrees for longest life but can handle temps below zero if not being charged or discharged. My BMS is made to stop any cycling below I believe 32 degrees. I don't fish in freezing temps anyway, so no big deal.
From what I understand ( and that isn't much) they are referring to active discharge from something making a draw down, which the BMS controls, not parasitic draws or minor discharge under normal battery life cycles.
