Ive had my 19.2 volt stuff for a few years now, gone through 1 battery so far, and one is weak. I love my Impact, It has taken anything I have tried to take off so far.
-2001 Tahoe 4x4 only 430k
-A Metric Butt ton of three wheelers
-1985 V65 Magna
-1983 Nighthawk 650
-1969 F250 Highboy built 360