Storage of Li-ion batteries

[Jon]

I have a digital camera that takes a Lithium Ion battery. I bought a
spare and was wondering how I should store it, charged or uncharged or
doesn't it matter with this type of battery?

 

[H. Dziardziel]

On 16 Jan 2004 00:18:56 -0800, rjbooth_uk@yahoo.co.uk (Jon) wrote:

I have a digital camera that takes a Lithium Ion battery. I bought a
spare and was wondering how I should store it, charged or uncharged or
doesn't it matter with this type of battery?

Store Li-ion at about 50% charge at 0-20C. Recharge it to that
level about every 3 months. The exact level is not critical but
both high charge and high temperature permanently use up self
dischargiing cell chemicals at a faster rate while 0% can be
fatal if prolonged. Self discharge in packs runs about
5-10%/month.. The shelf life runs about 2-5 years (gradual
capacity degradation) used or not so it is probably more cost
efficient to alternate using the packs.