On Wed, 18 Apr 2007 00:23:00 GMT, Clive Mitchell wrote:

The thing that damages batteries the most is over discharge. When you
try to get "just one more hole" from a flat drill battery it drives the
discharged cells in reverse and reduces their capacity.

Followed by a cheap charger that doesn't have any built in charge
detection or time switch and uses charge current way above that which can
be left connected indefinately.

A "one shot timer" is a very useful bit of kit for charging kit. I've made
one from mechanical time switch. Simply move the motor feed to after the
switch. Turn the dial to start it, set how long you want it to run and it
does until the off point where upon it switches itself off.

--
Cheers
Dave. pam is missing e-mail