Amazon.com: Synergy Digital Power Tool Battery, Compatible with Makita 4390D Power Tool, (Ni-MH, 9.6V, 1500mAh) Ultra High Capacity, Replacement for Makita 191681-2 Battery : Tools & Home Improvement
MAKITA MODEL 4390D, 9.6V RECIPROCATING SAW W/BATTERY AND CHARGER
Amazon.com: 2 Pack - Replacement for Battery Compatible with Makita 4390D - Replacement for Makita 9.6V Stick Battery (1300mAh NICD) : Tools & Home Improvement