So you narrowed it down that one works and one doesent ---so what is your question
Testimonial: "Ran out of writing room! How can I fix the one that doesn't work?? Couldn't see any burnt places on the board. Test??"
SOURCE: Battery and Charger problems
I have to agree with the previous commenters who called the support line- I was off the phone in less than 5 minutes with a new battery shipped free of charge. 1-800-435-7732
Congrats casio- I'm buying my next one from you too.
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.
SOURCE: headset not charging
Sometimes it takes longer than two hours. Leave it plugged in overnight if you can. The indicator light should go off after fully charging.
SOURCE: ryobi 18v lithium battery won't charge
sound to me like you have a bad battery, a lot of ryobi batterys don't last like they should i have had the same problem, but my battery was less than a year old and i took it back and they give me a new one.
SOURCE: charger light blinks red never
Worx has had issues with their chargers and their batteries. They don't seem to last as long as the machine does. A simple voltmeter test of the charger and any battery will tell the story. The charger's output rating should be printed on it and the battery also. Touch test leads from voltmeter to the two and check.
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