Battery Pack Dimensions: 36 mm x 11.1 mm x 6 mm * Battery Pack Weight 3.85 g/0.14 oz. * Specs At A Glance: Battery Voltage: 3.7 V; Battery Capacity: 130 mah; Battery Dishcarge Wire Size: n/a; Battery Balance Connector: n/a ;Battery Discharge Wire Length: n/a; Battery Discharge Connector: PZ U-Micro * Capable of charging at a maximum 5C Charge rate: 0.65 Amps; Max Continuous Discharge Rate: 3.25 Amps * Suggested Accessories: Hyperion EOS 0606i DC Charger, Hyperion EOS 0606i AC/DC Charger, Hyperion EOS 0615 Duo Charger, or Hyperion EOS 0720i AC/DC Charger, HP-UM6PADAPT (charge 6 U type packs at once using this parallel adapter plug)