I am just dipping my toe in and bought a Chinese Quad -- HR SH5, 4 channel, 2.4G. It came with a 650maH 3.7V battery, FPV. It worked well and flew (best I could), so I wanted more time and purchased a 1000maH 3.7 battery. After charging it I installed it and the copter would only turn one prop a few time and that was it. After that neither the original battery nor the new will cause it to do anything. Can anybody help? Thanks, Billkjell