just bought 2 new ni-mh replacement makita batteries for my 12 volt drill and iimpact driver. i know the new technology is lith-ion. but ill have to wait till this system finally craps out. does anyone know how long i should charge the batteries on their frist charge? should it be all night, if not how many hours should the initial charge be? thanks any info would be grreatly appreciate. i want these to last as long as possible.
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The charger will turn off by itself.
A Makita fast charger will charge the batteries better and help them last longer.
LiIon batteries suck in the cold.
Typical LI-Ion batteries also decrease their maximum capacity over a surprisingly short time. I have seen articles which say that the LI-Ion batteries will decrease by 10% per year, but my laptop LI-Ion batteries have been crapping out about twice that fast even when I try my best to treat them gently. I haven't looked up the expected lifespan of ni-mh batteries, however.
thank you for the info.
Yep, charge overnight. The charger will shut itself off, unless you have a ultra-cheapie unit (in which case you'll need overnight anyway). Should be a charge light on the unit that goes off when it's charged.
thanks for the info.