David Lang wrote:
Hi

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.

Whatever you do, never discharge below 12V.
If you do, one or more cells will be reverse charged, and damaged.
This is also the reason why you shouldn't use a failing battery
till the tool stops.
Swap batteries, and recharge.