Ok guys i figured out why this is happening. I have 3 pc tools a drill a driver and an oscillating tool. When the batteries stop working in the driver and oscillating tool they still have 20.3 volts and wont charge. Put them in my drill and discharged them for a couple minutes and then placed in the charger and they are both charging now
I have the same issue. Measured with multimeter, battery voltage is 20.3 volt. Short positive to negative, got spark and good current. Put in drill, LED on but not motor. Put in the other battery, drill motor works fine. Any suggestions for the trouble shooting?
That particular battery is defective and falsely indicating it is charged.
SOURCE: Kawasaki 19.2 cordless drill
Re: Burned trigger switch: call the number on the drill (800.590.3723) and tell them what happened. They will offer to send you a new switch or have you send the drill in for replacement of the switch--although the person I talked with said they would probably just replace the whole drill.
SOURCE: dewalt 18 volt cordless hammer drill
when it suddenly stop running probably the motor is seized.possible broken magnet. motor comes in assy
SOURCE: 14.4V Drill Battery Will not Charge
The battery is 14.4 volts so the charger should be 14.4 volts.
First before you open the tool ground yourself. The switch is probably static sensitive. Now open the tool and check for wires that may have come loose from the switch, or motor brush area. If no bad wires make sure the switch terminals are ok (not broken or bent and are tight enough to make contact with the batery terminals). Next check the brushes and make sure they move freely in the brush holders. You didn't state the model so it may not have brushes you can access. If all that is good disconnect the motor from the switch and secure the motor in a vise. Take wires with alligator clips and connect the battery directly to the motor for just a second to see if it runs. If the motor runs you have a bad switch assuming your battery is charged.
SOURCE: My new Black Max 24v drill charger will not charge the battery
Battery charger for electric drill Agojama 240v- 50HZ
22v_ 400mA 14.OVA
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