In article ,
David Lang wrote:
Is there a way to test 14.4v batteries from a drill driver to see what
condition they are in?

I only have a volt/ohm meter.

You'll get a rough idea by discharging them into a known load - something
like a car 21 watt stop light bulb would be ideal.

If they are Ni-Cads, they're likely to have a capacity of about 1.5
amp/hr, so I'd expect them to run the light at full brightness for about
45 minutes. However, one or more cells always fail first, so if there's a
problem, I'd expect it to be very much less.

High quality cells in good condition should do longer than 45 minutes.

--
*Everybody lies, but it doesn't matter since nobody listens.

Dave Plowman London SW
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