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Old Mar 23, 2010, 05:20 PM
Warthog_Fan is offline
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United States, NY, Endicott
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Storing Li Ion and LiFe Batteries


Though I've never used LiPo batteries, I know that you must store them in a half-charged state to prevent damage to them.

But what about Lithium Ion and Lithium Iron batteries? Seems like these batteries are used in applications where the user wants them to be as close to fully charged as possible, even after they've been setting for a while, so that they will deliver the longest run time of the equipment.

My battery chargers both have settings for "LiFe Storage" and "LiIon Storage". Is it really necessary to use this feature before putting the LiFe batteries in storage for a period of time (like a couple of months) or is it okay to just leave them in whatever state they're in and then fully charge them before putting them back into use again? Or should I just fully charge them before storage and then leave them in that state while stored?

Thanks in advance.

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Old Mar 23, 2010, 07:13 PM
everydayflyer is offline
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Haralson County GA. USA
Joined Oct 2004
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My Digitial camer Li Ion battery that stays charged for grab and go it about useless and the one that stays at 1/2 charge except when needed is still better than 3/4 capacity after 5 years.

True A123 Systems LiFePO4 seem to take being fully charged all the time just fine but then I do not have any that are 5 years old and most of mine are at aprox. 1/2 charge. I have two 2 cell packs A123s 2300s in flashlights that stay fully charged which seem to be fine after a year and one 3S 2300 that I run in an RC Truck which has stayed fully charged for right at 3 years. It has lost 50% of its capacity but has lived a hard life.

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Old Mar 24, 2010, 04:28 AM
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My oldest A123 is only 3 years old. It's stored fully charged, ready to go, and is still performing well. I can't quote any data to show how it's fared, but I still get the same-duration timed flights out of it that I initially did.

I've got a couple of Saphion packs which are now 5 years old, and it's the same story with them
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