Synergy Digital Power Tool Battery, Works with Makita 6172D Power Tool, (Ni-MH, 7.2, 3000mAh) Ultra High Capacity, Compatible with Makita 191679-9, 192532-2, 632002-4, 7000 Battery - Walmart.com
Amazon.com: Replacement for Makita 6172D Battery - Replacement for Makita 7.2V Stick Battery (2100mAh NI-MH) : Tools & Home Improvement