Features: brand new and high quality Wide-range Application: All new RC rechargeable Li-on battery with USB cable wire could for FY MN WPL series & most toy RC for cars of 1/10 scaled, use as the replacement part or modified accessories of your RC toy . RC Crawler Spare Part: A perfect replacement for your handmade RC toy, especially for toy RC crawler for cars, upgraded modified accs of your electrical toys which offer a for fresh new service cycle with great performance. Large Capacity Battery Pack: The battery pack with large capacity of 7.4V 500mAh, contains 1 x Lion rechargeable battery pack, 1 x USB charging wire, more durable & stability for better performance to improve for play experience. High Quality Material: Made by durable plastic and electronic components, wear resistant and safety, more stable with long for time duration . Easy Installation: Applicable for most RC car toys requirements and easy to install and change by your own, if you need any further instructions please do not hesitate to contact with us. Specifications: Material: Plastic, Electronic components Product Size: approx. 3 x 2 x 5cm/1.18 x 0.79 x 1.97 inch Battery Capacity: 7.4V 500mAh Net Weight: approx. 50g/0.11 lbs Package Includes: 1 Set RC Modified Li-on Battery Pack with USB Cable Wire note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.