This is the 2200mAh Tx battery for the Futaba 14MZ Radio. FEATURES: Plastic encased 7.4V battery Lithium-Ion chemistry Unique slide charged indicator INCLUDES: One 7.4V 2200mAh Lithium-Ion pack REQUIRES: Charger FUTM1700 SPECS: Length: 2.7" (70mm) Width: 1.5" (38mm) Height: .79" (20mm) Weight: 3.6oz (103g) Charging/Discharging cycles: approx 300 COMMENTS: The battery is not charged at the factory Never leave the battery in the Tx when not in use mcw 4/26/05 ir/jxs