Texas-Mark
Solar Addict
- Joined
- Aug 4, 2021
- Messages
- 1,322
I have seen a lot of threads recently about heating batteries, etc. and it made me think of something I don't recall reading and had not really thought about before. What, if any effect does active balancing have on cells if below freezing? Even if the BMS has low temp CO, it won't cut off a stand alone active balancer. Is the current flow between cells too low to worry about? I have a couple of lifpo4 batteries with active balancers that are in my trailer. I have the batteries disconnected for now because I am not using it and don;'t have any heaters out there yet. I do have a manual switch for the active balancers and did turn them off when I disconnected the batteries, but was wondering if it is an issue that people should worry about that may not have a manual switch and the batteries get below freezing, especially for active balancers that are not being controlled by cell voltage. But even those that are, it may be possible for the battery to get below freezing and the balancers are still working.