Welcome to our store！</br> 1、Lightweight Design: The lightweight design of lithium batteries makes them easy to carry. 7.4V 4000mAh lipo battery provides a perfect combination of weight, power, and performance. 2、Protection Function: 7.4V 4000mAh 8C lipo battery has overcharging protection and short circuit protection to ensure the safety of the charging process. 3、Provide Long Battery Life: 7.4V 4000mAh 8C lipo battery can provide longer battery life and fully experience the fun brought by toys. 4、Wide Application: 2S 7.4V 4000mAh 8C lipo battery is suitable for outdoor playing, safe in normal use, good choice for your rc mode. 5、Great Durability: The 7.4V 4000mAh lithium battery casing is durable, sturdy and stable, and has a long service life. <p class="wang-edit-text">Item Type: 2S 7.4V 4000mAh 8C Lipo Battery Material: Lithium Polymer Weight: Approx. 117g / 4.1oz Battery Capacity: 4000mAh Lithium Battery (Shipped With Pure Battery) Voltage: 7.4V <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Battery Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>