This is the HydriMax Ultra 4.8V NiMH 2000mAh AA receiver flat battery pack.
Includes: HydriMax Ultra 4.8V NiMH 2000mAh AA Receiver Flat Battery Pack with Universal connector
Requires: Battery charger such as Hobbico Quick Field Charger MkII, Hobbico Accu Cycle, Accu Cycle Elite, or Great Planes ElectriFly TRITON2
Rated Voltage: 4.8V
Dimensions: 2.3x 2.1x0.6 (58x53x15mm)
Weight: 4.3oz (122g)
Lead: 20AWG 5.9 (150mm) with Universal connector
Charge Rate: 11 hours @ 200mAh