For HS700 HS700D aerial brushless four-axis aircraft
Over charge protection, Short circuit protection, Easy to install.
Safety use: using high quality aluminum board with good sealing ,make sure it antioxidant, heat-insulation and anti leak fluid
The charger can charge for 2batteries at one time/USB line included
Package Content : 2PCS 7.4V 2800mah Lithium Battery & 2 in 1 charger&2PCS Charging Box