Amazon.com: 2-Pack 7.2V NIMH Battery Replacement for Dremel 7700-01 MultiPro Cordless Rotary Tool - Compatible with Dremel 757-01 7.2V MultiPro Battery Pack 1500mAh : Tools & Home Improvement
Dremel Cordless Multi-Pro 7700 - Thunderbird Supply Company - Jewelry Making Supplies
Amazon.com : Shentec 2-Pack 3.5Ah 7.2V High Capacity Replacement Battery Compatible with Dremel 757-01 Dremel 7700-01 Dremel 7700-02, Ni-MH(Not Fit for Dremel MultiPro 7700 Type 1, 770T2 and 73000 : Tools & Home Improvement