Features 1、Wide Compatibility: Compatible with a range of models, including for Wltoys V912, V262, V333, V353, and BQ202 RC helicopter. 2、Lightweight Design: The 7.4V 850mAh lithium battery is designed to be lightweight, making it easy to carry. It provides the perfect balance of weight, power, and performance. 3、Durable Construction: The 7.4V 850mAh lithium battery shell is sturdy that allows for a long lifespan, providing reliable power for your RC helicopters. 4、Extended Battery Life: The durable 7.4V 850mAh lipo battery provides a longer battery life, allowing for extended playtime and maximum enjoyment of the toy. 5、Safety Features: The 7.4V 850mAh lithium battery is equipped with overcharging and short circuit prevention, ensuring safety during the charging process. Item Type: 7.4V 850mAh Lithium Battery Material: Li Polymer Weight: Approx. 59g / 2.1oz Battery Capacity: 850mAh (Shipped with) Voltage: 7.4V Suitable: for Wltoys V912 V262 V333 V353 BQ202 RC Helicopter Package List 1 x 7.4V 850mAh Lithium Battery