Hi
it sound that the generator has blown the rectify on the charger unit
SOURCE: batteries don't charge
Dust getting in the charger is a problem, Try blowing it out with a moisture-free dust remover, found at most any store. Green flashing means improper power, due to dust or power from the outlet, try a differant wall outlet. Red flashing means the charger or battery is to hot and must cool down before it will charge. The charger will not charge a battery if the lights are flashing. Solid Red light means it is charging and solid green light means it is charged. Plug the charger in first before putting the battery on the charger. If the charger has been droped or hit the floor the coil inside could have broke loose and dammaged the charger requiring it to be replaced.
SOURCE: I have a li-ion Makita BL1830 18V 3.0Ah battery
Sorry Mate your battery is dead...
The makita lithium batterys dont like getting worked hard quickly.
There is a chip in them that recognice each battery to each specific charger. Try another charger. This has not worked for me. Try anyway
SOURCE: batterys wont charge flashing red and green possibly burnt out
Here's something you might want to read in regard to restoring batteries. I've never tried this but what do you have to lose at this point? Good luck!
http://webhowto.htmlplanet.com/nicad.html
SOURCE: hi both red and green
If both lights are flashing it means the battery is defective so it won't charge it. By defective it could mean the battery is just worn out or there may be a short in the battery. If the battery is under warranty you can get it replaced at a Makita Service Center, if not you have to buy a new battery.
Testimonial: "thank you verry helpfull"
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