Forum Discussion
full_mosey
May 05, 2020Explorer
toddb wrote:pianotuna wrote:toddb wrote:
Lithium can basically be burned to 0 and the bms will disconnect it.
No. 20% state of charge is the minimum recommended for LI.
Nor can they often be charged below 32 f (some a few degrees colder).
Storage below -20 c (-4 f) is NOT recommended.
Battle born told me going to 0 doesn't hurt it
...
BB batteries have an internal battery management system(BMS) that shuts the battery off before actual zero is reached. This BMS also stops charging at a upper Volt limit. I believe this BMS will also not permit charging at a low temperature around 32F. The BMS prevents damage that would otherwise kill the Li. This is why you can charge them with a conventional charger.
Some people with 12V fridges have found that the Li based battery system will shut down and ruin their food, when the FLA or AGM would still have been running.
HTH;
John
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