Ed Pawlowski wrote:
On Tue, 31 Jul 2012 18:23:02 -0700 (PDT), ItsJoanNotJoann
wrote:

Is it best to run an 18v battery completely dead before recharging??
Or should I recharge it when it's low but not completely dead? This
would be one of those Black & Decker batteries for all their battery
operated tools.


Never a good idea to run them all the way down. That is left over
from the old ni-cad days of the 70's or so.

And it killed cells then too.