parrisw
Tree Freak
Im totally aware of using the appropriate charger for battery, ive probably been through more cordless tools here than most, Bosch, Makita, Fein, Hilti, Hitachi etc...I have heard this before and was just looking if someone could actually explain why, rather than just dont do it.
For what its worth, Nickle metal Hydried batteries arnt much better than Nickle Cadnium IMO, they just dont like opperating in heat above about 30c. The biggest killer for any type of battery is over charging.
Its to do with the peak voltages, nicad and nimh are way different per cell, each cell, well the ones that I use, are 3.7v per cell, about 4.2v fully charged. Nicad and Nimh are 1.2v per cell, this is where the discrepancy comes in unless your charger knows its a lithium battery.
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