Compatible with CrystalSky monitors, Cendence remote controller, and the FPV remote. The battery has excellent discharge performance at low temperatures and charges very fast. One battery offers four to five hours of operating time for a 7.85" CrystalSky monitor, five to six hours for a 5.5" CrystalSky monitor, four hours for a Cendence remote controller, and about 7.5 hours on a FPV remote fully charged.