Originally Posted by
thumper_pa
Ok has anyone ever used (if you know what I’m about to describe) the automotive 1257 bulbs in a series discharger that a lot of us used back in the 90’s on NICAD & NIMH packs. Has anyone tried to use that type of discharger on a lipo pack I realize there’s no way to control each cell and you’d have to use a volt meter to make sure you didn’t ruin the battery but talk about a low tech low price discharger I understand this is crazy dangerous and I’m not asking anyone to do it so please don’t i was just curious as to if anyone has done it from a physical standpoint it should work fine while being supervised and a proper precaution taken as to cover all your variables of what can go wrong mainly fire. it’s just something I was fairly curious about and seen this post and figured I could ask here
Yes, I built one with a voltage cutoff using a power relay and some resistors to alter the coil current. Works fine.