hi
dose anybody know what model and year my makita 18v cordless keyless hammer drill is, the only numbers that have not rubbed off are,
67066c, and 0-400/1150min and 13mm which i assume is the chuck capacity. i have just bought it and want to know what amperage and 18v battery i need. it looks quite old compared to the ones on ebay.
thank you to everybody for the welcome.

WoW now thats an old drill! The closest one i could find was a 6791d 9.6v and thats a early 90s drill but couldn't find that one of yours, the batteries that should fit & work are these makita battery But i wouldn't bother buying batteries and a charger which would cost well over £200. Just buy a new drill as it will have the batts & charger look at this site 18v drill 3 batts & charger for £99 and dont be worried about the site name as its realy a makita drill and batterys so they will be compatable with the old drill you have. The one thing that bothers me is does you battery pack clip on the front and back or the sides of the base.

hi
thanks for the reply, the batteries clip on from the sides, i think they are nutool by looking at some batteries on ebay there red 18v, but no amps marked on them. there is an old makita 3amp quick charger with it, they charge up in an hour but get hot. I'm bench testing them with an amp/volt meter each day to see how long they hold an 18v charge, just for reference how long is a reasonable time for used batteries to hold a charge.

when screwfix do the deals on makita, they supply the crap batteries with them 1.3AH.........the red ones. So probably 1.3AH batteries you have, these are held into the drill body with side clips.

hi
thanks for that information,
how long should these inferior batteries hold a full charge out of the drill, there not brand new.

Well that depends on whether they've been used properly, but if they are ni-cds they should hold a 20 to 19 volt charge for 2 days when new & after 50 charges its stays at about 19v for a day but continuously drops charge after charging & if its been charged & left to stand for quite abit of time before use it will start loseing charge very quickly each charge (explination below). The problem with ni-cd batts is they get screwed up easily by people charging them up and just leaving them without use for long periods of time, this is bad as ni-cd cells generate heat when charging and alot of heat right at the end of the full charge and that creates a sulfur crystal inside the cells which stops each cell charging to its proper capacity and sometimes it reverses the polarity of the cells and they wont charge at all or they charge but loose that charge almost instantly. There are ways to make old ni-cd batterys work again like new but thats at your own risk! Just use youtube to search for ni cad repair. I take no resposibility for what you try!

hi
wow!!!, you learn something every day, i reckon to be clued up on most things but I'm clearly not. i didn't know any of that, thanks for the education.

just to add to StyXSIS comprehensive post assuming nicad s

i have hade one cell reverse polarity and it certainly got very hot and went with a bang took the charger with it lol

number your batteries use them in rotation do not fully flatten them aim for about 95%
do not charge a a part charged battery as the battery will develop a short memmory
you shoud try and complete a discharge charge cycle every month or so

_________________
we are all ------------------still learning

hi
thanks for that, i will take all that on board and follow your recommendations.