I believe that everyone is familiar with the lithium polymer batteries. His appearance makes the drone no longer have to rely on expensive and dangerous gasoline and methanol engines, and his affordable price and ease of use enable more and more novices to gradually Learn about the sport of model aircraft, and then discover its deeper and more professional side. First, I will explain the features of the CNHL 1000mah 7.4v 2s 100c lipo battery.