Non-rechargeable Battery
(Lithium)
CR123A
3V
Usable
√
Rechargeable Battery (Li-
ion)
16340
3.7V
Banned
×
Rechargeable Battery (Li-
ion)
18650
3.7V/3.6V
Caution*
!
Rechargeable Battery
(LiFePO4)
16340
3.2V
Usable
√
Rechargeable Battery
(LiFePO4)
18650
3.2V
Banned
×
Warning: Use quality Li-ion battery with protective circuits. Fenix ARB-L18 Series battery is
recommended.
*18650 Li-ion batteries are powerful cells designed for commercial applications and must be
treated with caution and handled with care. Only use quality batteries with circuit protection will
reduce the potential for combustion or explosion; but cell damage or short circuiting are
potential risks the user assumes.
Battery Replacement
Unscrew the battery cover to insert the battery with the anode side (+) towards the inner side,
then screw the battery cover back on.
Magnetic Absorption Charging
Connect the USB port of the charging cable to the power source, then hold the magnetic end of
the charging cable close to the charging port of the headlamp. The charging cable will attach to
the charging port automatically and charging will begin.
Note:
1. The headlamp can be used while the it is being charged, but charging time will be prolonged.
2. The normal charging time of the Fenix ARB-L18-3500 battery is 4 hours from depletion to full
charging.
3. Recharge a stored headlamp every four months to maintain optimal battery performance.
4. In charging process, the indicators besides the charging port of the cable will display different
charging status. Red light constant on: not fully charged; green light constant on: fully charged.
Summary of Contents for HM61R
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