This is the

FT2F1700BV2

6.6V 1700mah  LiFe Transmitter Battery.

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(UBA0140) NOTE: This is for TRANSMITTER use ONLY.

TYPE:
Rechargeable LiFeP04 Polymer Battery battery.

NOMINAL CAPACITY:
1700 mAh

CHARGING/DISCHARGING COUNT:
Approximately 500 Cycles
(Variable depending on the operating/usage conditions)

CHARGING TEMPERATURE:
0 to 45° C

DISCHARGING TEMPERATURE:
-20 to 60° C

STORAGE TEMPERATURE:
-20 to 25° C

Specifications:
TYPE: Rechargeable LiFeP04 Polymer Battery
NOMINAL OUTPUT VOLTAGE: DC 6.6 V
NOMINAL CAPACITY: 1700mah
CHARGING/DISCHARGING COUNT: Approximately 500 Cycles (Variable depending on the operating/usage conditions)
DIMENSIONS: ~87x29x17mm
WEIGHT: ~101 g
CHARGING TEMPERATURE: 0 to 45° C
DISCHARGING TEMPERATURE: -20 to 60° C
STORAGE TEMPERATURE: -20 to 25° C
CHARGER (NOT INCLUDED): LBC-38D OR LBC-4E5

*** MAKE SURE YOU CHARGE IN LIFE MODE, PLEASE CHARGE CORRECTLY