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-   Batteries & Chargers (http://www.Wattflyer.com/forums/forumdisplay.php?f=6)
-   -   Thaw before charging? (http://www.Wattflyer.com/forums/showthread.php?t=73497)

FlyWheel 04-05-2014 07:54 PM

Thaw before charging?
 
If a LiPo battery has been stored in a freezer (at storage voltage) does it need to be thawed out before charging to full voltage or can it be charged cold?

JetPlaneFlyer 04-05-2014 08:07 PM

You should let the pack warm up close to room temp before charging.

Sir Crash-A-Lot 04-05-2014 09:13 PM

Freezer? Most people tell you not to freeze a lipo. How does that work out for you?

Mike

JetPlaneFlyer 04-05-2014 09:46 PM

Yeah, I use a fridge but not a freezer. It might be ok though, I think extreme allowable lower temperature for LiPos is about -40C, and a domestic freezer doesn't get anywhere near that cold.

FlyWheel 04-06-2014 12:59 AM

Convenience, I have a freezer in my hanger/workshop. Haven't used it to store the batteries yet though. I was just wondering should I ever need long term storage.

flydiver 04-06-2014 01:20 AM

Yep.
You can charge them cold but if you get a full charge into them while still cold they could over volt as they warm up. Might be ugly.


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