Packing list:
2 x 1800mAh LiPo battery
Specifications:
Battery Type: Polymer Lithium-ion Rechargeable Battery.
Battery capacity: 1800mAh
Nominal Voltage: 3.7V
Fully charged 4.2V.
Cutoff voltage:3.0V .
Power: 6.66Wh
Weight: 0.85 ounce
This 1800mAh battery has a higher capacity than the original battery, so it takes longer to charging.