Ludger
New Member
- Joined
- Apr 11, 2021
- Messages
- 1
Hi!
I was wondering if active balancers can damage LiFePo4 cells at low temperatures, because they bypass the BMS. Or is a 1.2 A current too low to do any damage. What about 5 A balancing current then? I really have no idea. I imagine that the cell voltages diverge at low temperatures as has happened to me after a week at ca. -16 °C / 3 °F and then the balancing is triggered. After the winter one cell was at 2.2 V and the three others were at 3,2V roughly. (The balancing/voltage sensing wire to that 2.2 V cell was under mechanical tension, maybe that was the reason for the difference, but that's not part of my question. Daly (non smart) BMS 100 A continuous)
Thanks for you attention
Ludger
I was wondering if active balancers can damage LiFePo4 cells at low temperatures, because they bypass the BMS. Or is a 1.2 A current too low to do any damage. What about 5 A balancing current then? I really have no idea. I imagine that the cell voltages diverge at low temperatures as has happened to me after a week at ca. -16 °C / 3 °F and then the balancing is triggered. After the winter one cell was at 2.2 V and the three others were at 3,2V roughly. (The balancing/voltage sensing wire to that 2.2 V cell was under mechanical tension, maybe that was the reason for the difference, but that's not part of my question. Daly (non smart) BMS 100 A continuous)
Thanks for you attention
Ludger