Product Information: <br> Voltage:3.7V <br> Capacity:500mah <br><br> Features: <br> It will give more PUNCH and ROBUST performance due to its higher current output and power. Enhance your flying experience by using only manufacturer recommended spare parts. <br> Batteries come equipped with built-in protection mechanism for safe charging and use. <br> The charger can charge 4 batteries at one time.Batteries come equipped with built-in protection mechanism for safe charging and use. <br> battery connector is exactly same shape with the original battery ,no loose problems <br><br> Package Content: <br> 4PCS 3.7V 500mah lithium battery <br> 1PCS 4-in-1 charger <br> 4PCS conversion line <br><br> Note: <br> Any questions, please no hesitation to contact with me , we will very pleasure to service for you.