Hobbico HydriMax NiMH 4C 4.8V 1600mAh 2/3A Squ Rx U Conn FEATURES: Works great in any application, ideal where space is a concern 2/3A size cells Four cells wired in series with six welds per connection INCLUDES: HydriMax NiMH 4.8V 1600mAh Square Receiver Battery Pack with Universal Connector REQUIRES: Charger such as a 50mA radio wall charger for TRICKLE-charging, or the Hobbico Quick Field Charger MkII (HCAP0290) or Accu-Cycle Elite (HCAP