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Active balancing under 0 C

Fpoet

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Nov 9, 2020
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Question concerning active balancing: since some cells receive current in the process, is this actually a form of charging that could damage LiFePO4 cells in subzero Celsius temperature?

Edit: I realized after posting this that the question has already been asked...

can-active-balancers-damage-lifepo4-cells-at-low-temperatures.21130

I usually keep my batteries warm in the van, however I assume it is best to disconnect or turn off the active balancers otherwise.
 
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Yes, so considering Off Grid Garage Andy's latest video today, I would like to ask, something along the same lines.

I have an active balancer for a 4S 200 amp Hr. LiFePO4 battery pack, said balancer has the facility for an activation switch (as shown in the video), so as I don't want to buy a new BMS, can anyone advise how I could used either my Bluesmart 75/15 MPPT regulator or the (networked) BMV712, to control the balancer?

I would like it to switch on when the battery is fully charged as shown, and I would be interested to know what happens when it is actually balanced?

Looks like I should just buy the new Heltec "PowerPauls" switching version? https://tinyurl.com/4vucw975
 
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Question concerning active balancing: since some cells receive current in the process, is this actually a form of charging that could damage LiFePO4 cells in subzero Celsius temperature?
Great info in this thread:
https://diysolarforum.com/threads/science-based-discussion-on-charging-lifepo4-below-32°f.50642/
 
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