Ridgid drill/driver kit with 2, 2.0AH batteries

[sternwake]

Warranty destroyer.
Unregistered Ridgid 18v 60 watt  battery charger.
There is a 22 -2 awg, 6 foot powercord, from wall wart, to  battery charger cradle.
I Cut it 6 inches from cradle and installed a pair.of Anderson PowerPoles.  Place wattmeter inline.

With wall wart converter plugged into 123vac, It outputs 20.47v unloaded, No ridgid  battery in cradle.
Insert battery, initially 2 amps begin to flow into 3 of 4 bar 2.0ah  battery.
 Voltage dropped into the high 19's, but has since risen to 20.47V at SAME 2 amp load, and now to over 21.2v Now that amperage i has tapered  to 1.2a..
So far, it has delivered 0.41ah to cradle.

The unloaded starting voltage dropping on load, but then rising, with saMe load, makes me think that the specific voltage delivered to cradle does not need to be absolutely precise. 
I dont think the 18v 60watt wall wart transformer is capable of the precision.

I think I can set my 150 watt dc to dc boost converter to 21.12v, and power the cradle  directly from my 12vdc system.

That should show whether the 2 amp current limiter is inside the cradle, or wall wart transformer.

If its inside the wall wart, then i can potentially charge the Ridgid  battery at 150+ watts instead of 41 watts max, which  is overkill, but potentially handy..


Ok,it appears current limiter is inside wall wart.converter, and not cradle.

 The rested 19.83v   , still reading 4 of 4 bars, 4.0ah 18v ridgid 4.0 ah battery is now sucking 100 watts  through 150 watt dc to dc step up boost converter which is being powered by my 22ah 12.44v  agm battery,

So no inverter needed, and I can charge  ridhid batteries at 100 watts, jnstead of 40.

Yeeehawwww!!!!!!!
Can I get a harrumph outta that guy?

The ridgid to ryobi  battery adapter arrived .
Fits tightly on battery, and into dad's Ryobi leaf blower.