Circuit failure or broken contact
SOURCE: Dewalt charger problem
its the battery problem not the charger.don`t forget to bring your receipt for warranty. no question ask.
SOURCE: dewalt base charger unit
. The light on the charger will blink on and off during the charging process and will remain on when the charging process is completed.
SOURCE: Dewalt battery charger won't charge
As you know, solid red on your charger means that the battery is fully charged and the BLINKING red light means the battery is charging. Unless the light is blinking irradically everything is working the way it is supposed to. If the light is blinking irradically, the battery may just be too hot or too cold to charge ( like when you are driving many lags and your battery dies) and in this case simply wait 15 minutes to charge. If you get a fast blinking light still, the problem probably is with the battery.
SOURCE: When the DeWALT DE9118 charger
It sounds like you need a new charger I'm afraid. If you want to double check though, take the housing apart (4x security torx screws in the underside corners) and check the little glass fuse on the pcb. If either main fuse or glass one is blown you have a problem with the board and it's not worth repairing. If both fuses are ok I would suggest you might have a dry solder or broken leg on one of the pcb components. You could possibly resolder it if you can find it and it has enough contact left.
SOURCE: My DeWalt DW9116, battery charger lead light is fl...
Brown
Brown
Silver
Gold
R21 = 0.11 Ohm at 5 percent
Now can someone help me find the schematic for this model? DW9116
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On 3/5/12
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