We never thought that LiFe Batteries would gain traction, as there have been poor sales of the Firefox versions. But this type of battery might gain traction as it is given a serious push by MadBull Airsoft as they are coming up with their own development of this promising battery. in the form of LiFePO4. They last longer, safer, and easier to handle as compared to LiPoly ones so better give it a serious thought of using it... "After one year waiting, MadBull 9.6 / 12.8 V LFP battery….released very soon…

Lithium Iron Phosphate (LiFePO4) batteries (LFP)

Features:

• LATEST BATTERY TECHNOLOGY. USED IN HYBRIDS AND ELECTRIC CARS
• FLAT DISCHARGE CURVE: MAX POWER AVAILABLE UNTIL DISCHARGED
• HIGH DISCHARGE RATE, VOLTAGE, CURRENT AND “C”
• FAST FORCED CHARGING
• LARGE OVERCHARGE TOLERANCE (SAFER)
• EXTREMELY LONG BATTERY LIFE (5 TIMES THAN LiCoO2 LI-PO) (ABOUT 2000 TIMES UNDER REGULAR USE)
• HIGH TEMP. PERFORMANCE
• SAFER THAN ANY OTHER LITHIUM ION TECHNOLOGY"