I used battery charger on my boat with 2 batteries hooked in parallel. outboard started but i didnt remove charger for a few minutes and my boat wiring overheated(started smoking). now my volt gauge

SOURCE: battery wont charge

If it is under warranty you should take it back there is no way to repair the battery I would make sure it is the battery and not the charger before I trashed the battery

SOURCE: both green and red lights flash and audible sound from charger

you need to pull it a part than check each battery cell with the volt meter and it should be 20volt if undel 11. 1 that cell needs replacing wich will cost you about 2.00 dollers insted of $80 to $90 dollers a littel soldering and your on tha way..cheers peter

SOURCE: I bougth reciprocating saw, model

Why can't you buy the 230 volt DC18RA charger in europe (amazon.europe country) and use it. I had the same issue yet i burned out the fuse in the 110 volt DC18RA charger because i plugged it into the wall just using an adaptor. Lesson learned. Therefore, my first solution was that i bought a converter from 220V-to 110 Volt. This showed me that my charger was done. So instead of getting another 110 volt charger sent here to Europe from Canada, I returned the converter and have on order a 230 volt input DC18RA charger from amazon.de which has the same 7.2-18V output. I have been told this will work yet the fear, and I don't know why, is that it will burn out the batteries in a year or so. It is difficult getting specific information from Makita, but I hope it all works out. Best of Luck for you