The battery is constructed from individual Lithium Polymer cells which are protected by durable shrink wrapping, and feature a mini-tamiya connector to connect it to your weapon. This battery is specifically designed to fit in Crane Stocks and Hand guards, and is typically named a Crane or Butterfly Battery. The batteries are built using a high quality silicon wire, being a more flexible cable, this makes it easier to squeeze into tight spaces. These batteries are great because they are also perfect for Remote Control Cars, Boats and other RC vehicles. This battery is the perfect purchase for Advanced Airsoft Skirmishers with highly upgraded High Rate of Fire or Power Guns. Please ensure when purchasing this battery you are fully aware of the power of the battery. Using this battery in Standard or none upgraded Airsoft Weapons can cause permanent damage. 
Features:
Part of NUPROL's Power Range
Specifically designed for Airsoft
High Quality Battery Cell
Designed for Crane Stocks
Crane / Butterfly Style Battery
3 x 3.7v Cells
1450mAh of Battery Capacity 
25c Discharge Rating
10cm of Cable
Flexible Silicon Wiring
Mini-Tamiya Connector 
Package Includes:
11.1v 1450mAh 25c LiPo Crane Battery
Instruction Manual
Special Instructions
Please note that we only recommend that this battery be used in Highly upgraded guns, and as such we cannot provide a warranty on any gun which has had an 11.1v battery used on it.
Please do not let the battery fully discharge before recharging, this will damage the battery, please use a LiPo Alarm to check the Charge of the Battery before use, and stop if the Rate of Fire Drops. To charge the battery you MUST use a Li-Po Battery Charger, as overcharging can cause damage to the unit.
Never leave Li-Po charging unattended - Always monitor the charging process of your Li-Po so that you can react immediately to any potential problems. If your batteries start to balloon or swell up discontinue charging / discharging. Before and after the use of your Li-Po batteries, inspect them to ensure there is no physical damage or swelling as those are signs of an imminent failure. 
Only use approved Li-Po chargers. Do not pierce or disassemble the battery. The charging current should not be ore than 1.0c as charging at a higher current may damage the cell or even lead to overheating or leakage. Stop charging immediately when temperature is over 45°C, and stop using the battery once the temperature is over 60°C.
We recommend that all LiPo batteries be charged in a fire resistant location, and inside a Fire Proof bag, such as the VP Racing Battery Giant Power LI-PO GUARD Charging Bag.