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
Shentec 2-Pack 2500mAh 7.2V Dremel 757-01 Replacement Battery for Dremel 7700-01 and Dremel 7700-02, Dremel 7.2 volt Battery (Ni-MH)
Powerextra 7.2 Volt 2000mAh Battery Compatible with Dremel MultiPro Cordless Rotary Tool Models Dremel 7700-01 and Dremel 7700-02 Replace for Dremel 757-01(Do not fit Dremel 770 Type 1, 770T2, 7300) - - Amazon.com