3.7V 4000mAh 14.8wh LiPo Polymer Rechargeable Battery For Tablet PC DVD 805080 | eBay
3.7V 4000mAh Li Po Polymer Lithium Rechargeable Battery For Tablet PC Power Bank GPS PAD DVD Laptop Notebook 5044147|Rechargeable Batteries| - AliExpress
3.7V 4000 mAh 606090 thermistor 3 Wire Polymer Li Lipo Battery For GPS Tablet PC 600682488327 | eBay
UltraFire BRC 18650 4000mAh 3.7V Li-ion With PCB Battery (2-pack)
Buy Wholesale China Thin Pouch Size 4000mah 3.7v Battery,3.7 Volt 855080 Rechargeable Lipo Battery With Large Capacity & 4000mah 3.7v Battery at USD 2.5 | Global Sources
3.7V 4000 mAh 606090 Polymer Lipo Li Battery For GPS PDA PSP Tablet PC 066090 600682488327 | eBay