This is the Hobbico LiFe 6.6V 1300mAh Receiver Battery Pack with Universal Connector. FEATURES: LiFe (lithium iron phosphate LiFePO4) offers a lightweight, high energy density battery with more power than NiCd and NiMH receiver batteries provide Ideal for receivers used in 1/8 scale off-road applications or as an airplane/helicopter receiver pack where space is limited Nominal voltage rating of only 6.6V typically does not require a regulator to power receiver and servos INCLUDES: Hobbico LiFe 6.6V 1300Mah Receiver Battery Pack with one Discharge Lead and one Balance Lead REQUIRES: Charger such as the Hobbico LiFeSource AC/DC Balancing Charge (HCAM6375) (only use chargers that specifically say they are compatible with LiFe cells) SPECS: Capacity: 1300mah Number of Cells in Series: 2 Rated Voltage: 6.6V Continuous Discharge Rate: 1C (1.3A) Maximum Recommended Charge Rate: 1C (1.3amps) Charge Lead: 24 AWG 2.5" (63mm) long wire w/ElectriFly Balance connector Discharge Connector: 22 AWG 7.5" (190mm) long wire w/Universal connector Dimensions: 2.3 x 1.2 x 0.98" (55 x 30 x 25mm) Weight: 2.5oz (72.3g) JMLM 10/21/10 ir/jxs