Are hyper tough batteries compatible with black and decker

A: Yes, you can use all 20V BLACK+DECKER batteries since they are compatible with 20V BLACK+DECKER tools.

Yes, all of our 20V BLACK+DECKER batteries and chargers are interchangeable within our 20V BLACK+DECKER product line.

A: No, not without intervening circuitry to step down the voltage to 20 volts. You can generally use a higher capacity battery (that is one with more amp hours and thus run time) but the battery itself has to be 20 volts. Higher voltages will destroy the tool. Helpful?