MAEnt™ 7.4V Li-ion 18650 Lithium ion Rechargeable Battery Pack 2S 8.4V Battery Pack for GPS i Pod P sp/DVD/mp4 Tablet PC Project Work Industrial Equipment (2600 mah) : Amazon.in: Electronics
Amazon.com: TATTU 8.4V 1600mAh NiMH Flat Battery Pack with Mini Tamiya Female Connector Assembled with 16G Wire : Sports & Outdoors