Battery Specifications
Type
Dimensions Nominal Voltage
Usability
Fenix ARB-L18 Series
18650
3.7V
Recommende
d
√√
Fenix ARB-L2Series
18650
3.7V
Recommende
d
√√
Non-rechargeable
Battery
(Lithium)
CR123A
3V
Usable
√
Rechargeable Battery
(Li-ion)
18650
3.6V/3.7V
Cautious*
！
Rechargeable Battery
(Li-ion)
16340
3.6V/3.7V
Cautious*
！
Rechargeable Battery
(LiFePO
4
)
18650
3.2V
Banned
×
Warning: 1. Do not mix batteries of different brands, sizes, capacities or types. Doing so may
cause damage to the flashlight or to the batteries being used.
*18650/16340Li-ion batteries are powerful cells designed for commercial applications and must
be treated with caution and handled with care. 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 tail cap to insert the battery with the anode side (+) towards the light head, then
screw the tail cap back on.
Usage and Maintenance
Disassembling the sealed head can cause damage to the light and will void the warranty.
Fenix recommends using excellent quality battery.
If the light will not be used for an extended period, remove the battery, or the light could be
damaged by electrolyte leakage or battery explosion.
Take out the battery to prevent accidental activation during storage or transportation.
Long-term use can result in O-ring wear. To maintain a proper water seal, replace the ring
with an approved spare
．
Periodic cleaning of the battery contacts improves the lamp's performance as dirty contacts
may cause the lamp to flicker, shine intermittently or even fail to illuminate for the following
reasons:
A: The batteries need replacing.
Solution: Replace batteries (Ensure batteries are inserted according to the manufacturer’s
