Bad Dewalt XRP 18v drill motor assembly?

[Chupa]

Hi again everyone! After the success of my last repair Im thinking about repairing my cordless dewalt drill! I have repacked my own dewalt batteries numerous times now. Im very sure I do it correctly, all the voltages are what they should be when im done and everything checks out fine. The problem Is I don't seem to get the same amount of life out of my drill (and some other dewalt tools for that matter). The AH rating of the battery cells I use is greater than the stock ones, so theoretically I should get better life than those, but this dosent seem to be the case. I'm wondering If this is because my drill is simply old and the motor is somehow burning extra juice that it dident in the earlier years of its life. I do notice a very strong "electrical burning" order when I run the drill coming from the motor vents. Someone else even noticed it when I was using the drill around them.

Do you think its possible that replacing the motor for my cordless drill will help extend the battery life of it? Or is it most likely the aftermarket battery cells I am using?

[cmoorejack]

Hey Chupa
Congrats on your success!
With your problem now..it could be the aftermarket batteries and or the charger may be having some issues [shutting down before the batteries are fully charged]
Also any drag on the tool from worn out components will always drain down the battery prematurely ..[even using the drill in high or low effects the drain] dull drill bits, heavy use..using it left-handed..that sort of things.
replacing the motor is highly recommended if you have had heavy use or if there is a burning smell [not a ozone smell]
Geter done...!
hope this helps?
cmoorejack