[Shop-talk] dewalt battery charger testing

[john niolon]

I'm having trouble charging Dewalt batteries... some it may be old batteries
but I'm wondering if my one hour charger is dying...   Dewalt 9107  one hour
charger   when I put a meter across the contacts down in the charger I read NO
d.c. voltage.  although the battery is getting warm and slowly taking a
charge... I had a completely dead 12v battery and started charging it with a
hotter power supply 26volt  for a few minutes... it came up to about 8 volts
and I then stuck it in the 9107....  4 hours later it's up to about 10 volts
???   This is a 2.8 amp charger and should do better than this...  discounting
a bad battery pack... how can I test the charger ???

thanks
John






Nothing says "Poor Workmanship" like wrinkles in your duct tape!!