Amazon.com: Synergy Digital Power Tool Battery, Compatible with Hitachi UB 5D Power Tool, (Ni-MH, 12V, 2100mAh) Ultra High Capacity, Replacement for Hitachi 320386, 320387, 320388, 320606, 320608 Battery : Tools & Home Improvement
Exmate 1.2V-18V Ni-MH/Ni-Cd Battery Charger Compatible with Hitachi 7.2V, 9.6V, 12V 14.4V 18V Pod Style Battery (Not for Li-ion Battery) - Amazon.com