[AT] OT cordless drills & batteries

[Howard Weeks]

Some of the battery chargers will not attempt to charge a battery if 
the battery voltage has gone completely to zero.  I have a Makita 
drill here that has been guilty of that.  I have been able to get the 
battery to charge by placing the battery across a bench power supply 
pushing 200 mils or so into it for 20 - 30 minutes.  That usually 
brings the terminal voltage up to several volts.  At that point, the 
Makita charger is happy to go ahead and charge it.

On 29 Apr 2007 at 23:17, Dudley Rupert wrote:

> Dick,
> 
> Sorry I don't have an answer to your' question but it has reminded me of a
> question that I have had for some time so I will ask it of the list.
> 
> I have two cordless batteries for a Dewalt drill and they both seemed to
> have gone bad at the same time as they won't/don't take a recharge.
> Question:  Does anyone know, when a cordless battery will not charge, if
> there is an easy way to tell if the problem is with the charger or with the
> battery?
> 
> TIA
> Dudley
> Snohomish, Washington
> 
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com]On Behalf Of D. Day
> Sent: Sunday, April 29, 2007 6:20 PM
> To: at at lists.antique-tractor.com
> Subject: [AT] OT cordless drills & batteries
> 
> Is there any truth to the notion that storing cordless drill battery packs
> in the fridge extend their life?
> 
> I find this hard to believe since I ruined the last cordless drill batteries
> because I left them in my unheated shop during the winter. Now they barely
> hold a charge.
> 
> Also, any suggestions on a good mid-range cordless 1/2" drill?
> 
> Thanks,
> 
> Dick Day
> 
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Howard Weeks
Harlem, GA 
K5JCP