Makita 40V max XGT 19-1/2 in. Brushless 15 lbs. AVT Demo Hammer Kit (4.0 Ah) with bonus XGT 4.0Ah Battery and XGT 4.0Ah Battery GMH01M1-2BL4040 - The Home Depot
Makita 10.8V 12V Li-ion Battery Power Wheels Adapter - Powuse
MAKITA USA DC10WA 7.2V-12V Max Charger - Cordless Tool Battery Chargers - Amazon.com