On Sun, 6 Jan 2008 15:02:08 -0500, Ralph Mowery wrote:

"komobu" wrote in message
...
Hi;

I picked up an 18 volt Dewalt Cordless Drill and a Dewalt Impact gun
that use the same batteries. Each item came with 2 batteries so I now
have 4 batteries. Batteries cost 90 dollars each and I have four of
them. I would like to store two of them for a couple years. I would
use two of them now, and then when they go bad, break out the other
two. Is it possible to store these batteries? What is the best way to
accomplish this if it is possible?

Thanks
Pat

Make sure they are really ni-cads. Some of the other recharagabel batteries
have a life time of around 2 to 3 years even if you do not use them.

I think I would rotate all of the batteries.


My experience is that nicads will last nearly forever as long as they are in
use. Typically I'll recharge once or twice a week with universal remote
control batteries getting least at about every three months.

Leave the batteries unused in a draw somewhere for 9 months and they'll be
ruined. Recharging twice a year might not be bad advice.