hello guys
i use lifepo4 starter battery in my car (normal petrol car) without any balancing or bms for more then 2 years already .
recently i had 3 failed cells due to my wife leaving the lights and completely draining the battery overnight.
so far i was avoiding using a bms due to the high cost and size of high current capable bms . i also tried using active balancing devices , which were worse then without balancing at all .
so now i'm thinking getting a standard bms , but use its output to control high current dc ssr . i will lose output current limit and charge current limit and i can live with that .
the gains are low/high voltage protection and balancing .
what do you think ?
i use lifepo4 starter battery in my car (normal petrol car) without any balancing or bms for more then 2 years already .
recently i had 3 failed cells due to my wife leaving the lights and completely draining the battery overnight.
so far i was avoiding using a bms due to the high cost and size of high current capable bms . i also tried using active balancing devices , which were worse then without balancing at all .
so now i'm thinking getting a standard bms , but use its output to control high current dc ssr . i will lose output current limit and charge current limit and i can live with that .
the gains are low/high voltage protection and balancing .
what do you think ?