Efficient and safe, durable, longer battery life to help you get more playing time. With USB charging cable, you can charge the battery with any household adapter with USB port, like mobile phone charger, power bank, Laptops. It is more convenient. Specifications: Chemistry: Ni-CD Voltage: 6.0V Capacity 1800mAh Plug: SM-2P 2 Pin Plug Battery Dimension: 70*47*15mm Battery Weight: 95g/ Compatible: RC Car/Truck Package includes: 2/4/6/8/16 * 6.0V 1800mAh Nimh Battery 2/4/6/8/16 * SM plug USB charger cable * When your original battery is damaged or old, it can be a good replacement. You can also use it as a spare battery, when you play the toys, which allows you to enjoy longer action time * Lightweight and portable battery pack for outdoor, only take the toys or other fits tools connect.