Specifications:
Product type: Rechargeable lithium polymer battery
Battery parameter: YKS Power 11.1V 850MAH 20C
Battery capacity: 850MAh
Continous discharge rate: 20C MAX 30C
Battery size: 5.8 * 2.9 * 2.0cm / 2.3 * 1.1 * 0.8in
Battery weight: 64g / 2.3oz
Note: due to the difference between the measurement， the battery dimension and weight may have little error.
Plug: JST
Package size: 8.6 * 5.4 * 3.4cm / 3.4 * 2.1 * 1.3in
Package weight: 77g / 2.8oz

Caution:
Don't over-charge，or over-discharge batteries.
Don't put it beside the high temperature condition.
Don't throw it into fire.
Don't throw it into water.

Package list:
1 * YKS Lipo Battery 11.1V 850mah 20C MAX 30C JST Plug