Ny the way the cheapest option may be a new drill :-)

"Rick & Linda Bernard" wrote in message
...
I am going to hazard a guess and say that the 120 VAC to 19.2 VDC charger
requires a good sine wave for operation. It could be that both the
inverter
and the honda genset (I believe it has an inverter also - or at least the
web site said so) power output is a modified sine wave that does not get
correctly inverted to 120 VAC.

Perhaps he could try a pure sine wave inverter.... Mucho dinero!