A tri-colour LED indicates the switched status of the PowerBox 12
The TopFuel battery can be used without MTAG function like any ordinary battery
regardless of size or wingspan
What does this mean for you
Futaba Tx Battery 6.6v LiFe 2100mAh 4PV/4PLS/4PX,7PXR/8J/10J/14SG/16SZ & 18SZ FT2F2100BV2 LONG_TUBE A tri-colour LED indicates theFutaba Tx Battery 6. 6v LiFe 2100mAh FT2F2100B V2 2100 mAh Transmitter LiFe Battery Lithium Ferrite Battery for 3PV, 4GRS, 4PK, 4PKS, 4PKS R, 4PL, 4PLS, 4PM, 4PV, 4PX, 4PX R, 6J, 6K, 7PX, 7PX LE, 8J, 10J, 12K, 14SG, 16SZ, 18SZ, 18SZ 70th Anniversary NOTE: This is for TRANSMITTER use ONLY. Type: Rechargeable LiFeP04 Battery. Nominal Output Voltage: DC 6. 6V Nominal Capacity 2100 mAh Charging Discharging Count: Approximately 500 Cycles (Variable