[Duo2400] Re: how to store 2400c LiON battery for long term

Jake Luck comet at 10k.org
Fri Apr 18 16:21:14 PDT 2003


So to maintain the maximum non-recoverable capacity. Does that mean it is
best to leave the battery slight charged in the fridge, and take it out
for a full charge and discharge every 3 month or so?

jake


> There are two factors to consider during storage:
>
> A battery will self-discharge at about the rates shown
> below. This capacity can be recovered by normal
> charging.
> Battery Type	Loss During Storage
>
> LiIon	About 0.5% to 1% per day
>
> A non-recoverable capacity loss occurs during storage
> that depends on the storage temperature and length of
> time. If the storage temperature is below +35C the
> batteries can be stored for up to 2 years with about a
> 5% capacity loss which is not recoverable. If the
> storage temperature is allowed to reach +60C the
> storage time should be limited to 2 weeks to prevent
> more than a 5% loss. The batteries should be
> discharged or only slightly charged prior to storage.
> A charged battery will usually increase the capacity
> loss which is non-recoverable.



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