LiFePo4 lithium battery charging questions
TL DR – I have some questions related to charging 12V LiFePo4 lithium batteries: *How to best use my solar to charge batteries? *Assuming I usually keep the lithium batteries at a partial SOC, what ...
Forum Discussion
ewarnerusa wrote:
I'm not clear on onboard BMS with respect to reaching 100% charge. Does the onboard BMS stop the charging is it senses 100% SOC?
No…Know that when you deem it (occasionally) necessary to achieve a full charge (Note, say, once holding at 14.Xv per charging source’s upper limit - also, shunt meter will have re-sync’ed to 100% SOC), it’s best to allow charger to continue for a short period to allow for cell re-balancing phase…This brief activity can be witnessed by watching the volts and amps alternatively dip and rise until completion…
LFP SOC can be problematic to track (due to a relatively flat discharge voltage plateau…), thus you should use a shunt meter that’s known to be capable of accurately tracking LFP chemistry, such as a Victron smart-shunt (to smart phone), or BMV-12 (with meter), or equivalent…
3 tons
