Decase by removing the eight screws on the back. Check the charging fuse isnt blown. You will find it on the underside of the square circuit board that mounts on the back of the charger port.
SOURCE: initial charging time
hi there
the first charge should be around 12 hours, this then teaches the battery its max load.
ignore the charger if tells you its charged after a couple of hours.
after the first charge use as normal.
hope this helps
beergut707
SOURCE: Energizer CHDC charger suddenly not indicating if charging or not
It sounds like the PC Board which provides the circuitry for the Charger's indicating light is malfuntioning. If you have a DC volt-meter, you can check the Charger's output voltage, and then the Battery voltage to determine if your charger is functioning.
Hint: If the Charger has an output voltage, but the Battery's voltage is less than its rated voltage... it's time for a new battery.
SOURCE: Battery will not charge
I found this while searching to find an answer to solve my problem. It worked! Some say that it took them about 20 times... it took me about 7. Be patient and just keep trying! Hope this helps!
My NP 20 gave me the flashing red light of death and I got Casio to replace it. Then I had the same problem with my second NP 20 so I dug around for a way to fix it and I found the following advice on a site called FixYa. It worked instantly and I didn't risk ruining my battery.
ylu1 writes:
I had the same problem as this.
what i did was...
i kept putting the battery on the charger then took it off as soon as the red light came on.
i did this about 6 times.
doing this puts a bit of charge in the battery each time before the charger starts to flash.
after the battery as got enough charge in it it can start to charge.
hope this helps.
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