Storing batteries?

[Levanel]

Any of you have tips on storing Li-Ion batteries like the LIP-4WM, long term? I've got an extra one for my RH1 and I don't want to have to find out the hard way that it's unchargeable (or will hold a weak charge).

I figured the way my N10's internal battery died was of prolonged periods of idleness, of maybe 6 or more months without a charging. Don't want this to happen as the RH1 is a fairly strange unit without an external battery pack like many of it's predecessors included..

[Hungerdunger]

From http://www.batteryuniversity.com/parttwo-34.htm :

If possible, store the battery in a cool place at about a 40% state-of-charge. Some reserve charge is needed to keep the battery and its protection circuit operational during prolonged storage. Avoid keeping the battery at full charge and high temperature. This is the case when placing a cell phone or spare battery in a hot car. Running a laptop computer on the mains has a similar temperature problem. While the battery is kept fully charged, the inside temperature during operation rises to 45°C (113°F).

[tekdroid]

Any of you have tips on storing Li-Ion batteries like the LIP-4WM, long term? I've got an extra one for my RH1 and I don't want to have to find out the hard way that it's unchargeable (or will hold a weak charge).

I figured the way my N10's internal battery died was of prolonged periods of idleness, of maybe 6 or more months without a charging. Don't want this to happen as the RH1 is a fairly strange unit without an external battery pack like many of it's predecessors included..

1) keep them cool

2) charge periodically (once every 3-6 months if unused) and don't let them go flat for extended periods without a charge

3) turn Quick Mode off in Hi-MD unit. This would prevent unit using battery power if the unit is left unused for extended periods; a good insurance policy for batteries sitting in the unit on the off-chance you don't use your Hi-MD daily