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Old 07-16-2008, 08:42 AM   #1
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Talking what are your methods?

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of storing lithium batteries? Mainly lithium polymer batteries?

After doing some reading at http://www.batteryuniversity.com/ and reading around some other forums there are a lot of mixed suggestions from just about everyone.

I store mine @ 3.8v per cell and have kept them in room temperature. Mind you i've never stored my batteries for longer then 3 weeks, but some of my bigger ones i am planning to store for awhile and would like to hear some input

So... How do you store your lithium batteries?
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Old 07-16-2008, 09:16 AM   #2
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Re: what are your methods?

Originally Posted by b0r3d View Post
So... How do you store your lithium batteries?
I store them in a metal box at room temp at about 3.5 - 3.6 V per cell. I have to admit I was paranoid about them at first but have had no problems.

I will also admit that when we go on vacation I put them inside our woodstove insert in the fireplace (inside the box). Then I know if they ever did blow they would be inside something that would contain the fire.

In any case I never ever leave them unattended when they are being charged. But they seem very stable in most storage situations.
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Old 07-16-2008, 10:43 AM   #3
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Re: what are your methods?

I just make sure they are stored charged, and I ensure there is no way they can become shorted or damaged in storage.

My methods vary, but the intent is always the same.

I have abused batteries, as have guys I fly with. I have heard of a couple instances, and they always come down to the same thing. Either overcharging, shorts in the battery leads, or puncturing a cell.
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Old 07-16-2008, 10:52 PM   #4
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Re: what are your methods?

I was told I should store LiPos with about half a charge, especially if they are charged when it is cold. The explanation I was given is that the chemistry is such that if the battery heats up (on a hot day, in a car trunk, etc) the voltage will go up, possibly to a dangerous level. However if half charged it won't exceed safe levels.

In any case, I keep mine in an ammo box, with the lid latched closed.
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Old 07-17-2008, 05:39 PM   #5
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Re: what are your methods?

I keep mine in a small fire safe, then use it to transport them to and from the flying field and also for charging. Dzl
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