Inq720
Odysseus, expert on the Siren's call
I have a Lishen 272 Ah battery using a Overkill Solar BMS. This will be going into a boat. During the boating season, it will be used more heavily. My question is for the off-season. Say for four months, it will be sitting idle. It will likely have a small fan and maybe some electronics totaling about 5 watts. Here is what I've learned in my reading (mostly from this forum).
Normally, the trigger value is 3.65 volts and the release value is 3.5 volts.
It is my thought if I,
Thanks.
- Its not good on cells to keep them topped-off like lead-acid at 100% SOC with a trickle charger.
- The recommended long-term storage voltage is 3.28 volts/cell (about 40% SOC).
- I see that my Overkill Solar BMS is programmable.
Normally, the trigger value is 3.65 volts and the release value is 3.5 volts.
It is my thought if I,
- set the cell over voltage, trigger value to 3.30 volts (about 70% SOC) the BMS will disconnect the trickle charger.
- set the cell over voltage, release value to 3.28 volts (about 40% SOC) the BMS will the re-connect and let the trickle charger recharge it.
Thanks.