now I want to show another good device with its lame battery, dremel minimite.
I like this rotary tool so much, it does many thing, and for such useful device, dremel has it with proprietary ni-cad battery (and only 700mA in capacity), which is very old technology in today world.
look, how crappy the stock charger is, basically it just a transformer, two rectifier diode, one capacitor, and one LED, and they call it a charger :), once time I left my battery attached on this charger for almost 2 days, lucky me nothing happened.
it turn out replacing the battery on this dremel is easier than I thought, look on couple of images below, you can see how easy it is, hopefully I can replace it with Lithium battery someday, but for now, change the battery with NiMH with 2600mA, is way much better compare to original version.
take a look on the screw driver that I put inside dremel original battery, if you hold one of that battery right now, you can figure out by your self, and that the way you take out ni-cad battery from its case.
note, need 4AA battery holder for modification.
picture after the battery break apart, and I cut white battery holder in two, I just need one side as the battery terminal.
battery ready to be assembled, one side of 4AA battery holder, 4 hi-cap NiMh battery (its 2600 mAmp, compare it with dremel original, NiCad 700ma )
battery after its being assembled, now everytime I am running out of the battery, I simply can replace it with another set of battery.