Battery Specifications; Battery Replacement - Fenix HT18R Manual

Battery Specifications

Type
Fenix ARB- L21-5000 V2.0
Fenix ARB- L21-5000U
Fenix ARB- L21-4000P
Other types of Li-ion battery
*21700 Li-ion batteries are powerful cells designed for commercial applications and must be
treated with caution and handled with care. Only using quality batteries with circuit protection
will reduce the potential for combustion or explosion. Cell abuse or short circuiting are
considered user induced damage and are not covered by any Fenix warranty or liability.

Battery Replacement

Unscrew the tail cap and insert the battery with the anode side (+) towards the light head, then
screw the tail cap back on.
Charging
1. Open the anti-dust cover to reveal the USB Type-C charging port and plug the USB-A socket of
the charging cable into an an appropriate AC powered USB plug/outlet, then connect the USB
Type-C socket of the charging cable to the flashlight.
2. The indicator will display red while charging, and will turn to green when fully charged.
3. Once charging is completed, be sure to unplug the charging cable and close the anti-dust cover.
Note:
1. When charging fails or the battery is inserted backwards, the battery level indicator will flash
red to notify the user to check the battery condition.
2. The normal charging time of the flashlight is approximately 3.5 hours from depletion to fully
charged. The flashlight cannot be operated while charging.
Nominal
Dimensions
Voltage
21700 3.6 V
21700 3.6 V
21700 3.6 V
21700 3.6 V
Usability
Recommended √√
Recommended √√
Recommended √√
Caution* !