Li-Polymer 3.7V 4000mAh (6346100) Battery - LiTech Power Co.,Ltd
4000mah 3.7v 357090 Polymer Lithium Ion Battery Replacement Battery For Mp5 Dvd Gps Camera Tablet E-book Electric Toy - Rechargeable Batteries - AliExpress
High Power Polymer Li-Ion Cell: 3.7V 4000 mAh (6050140-10C) 14.8Wh, 40A rate - UL Listed / UN38.3 Passed (NDGR)
3.7v 4000mAh Lipo Polymer Rechargeable Battery For DVD GPS Mobile Phone 124065 | eBay