Battery

Archived from the Tools In Action forum (Dewalt). This thread is read-only.

b41adeMember since Aug 2024

Hi guys.

Ive just been given  2x 18v xr 4ah batteries.

1x works fine and has just over 18v across the terminals.

The other has 20.2v but wont work. It only illuminated the led for aprox 1 second then nothing.

Any suggestions please

Eric – TIAMember since Jan 2010

What happens when you charge it.  Do all four lights go on when you press the button?  Are you trying this battery in the newer Dewalt tools.  I don’t think the 20.2 work on the old drills.

ShondaveMember since Feb 2024

I agree with previous to see if it charges.. then open the shell and see if there is a corroded- unsoldered contact. 

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