[AFPhys]

I have had a very expensive LIon battery tool fail within two years. My question is why this great battery technology has not come to age for battery-operated power tools.

[ColdWater]

I have had a very expensive LIon battery tool fail within two years. My question is why this great battery technology has not come to age for battery-operated power tools.

Did you tool have a sophisticated power management scheme that required the gasoline engine to kick in when it was slightly depleted or did you not bother to charge it until it went so low it would no longer operate properly?