On Wed, 01 Aug 2012 00:47:32 -0500, wrote:

On Tue, 31 Jul 2012 21:45:58 -0400, 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.

Aren't those tool batteries still ni-cad?

I know the cellphones and laptops have li-on, but not sure about the
tools.......

Some tools are, others have moved on. But even with the ni-card,
technology has improved on both cells and chargers.