High output level. Turbo can be reselected if needed, but service life could be shortened or the
flashlight could be damaged permanently.
Low-voltage Downshift Function
When the voltage level drops below the preset level, the flashlight is programmed to downshift
to lower brightness levels until Low output is reached. When Low output mode is reached, the
flashlight blinks three times every five minutes to remind you to charge the light or replace the
battery. To ensure normal use, the flashlight will not turn off and will work until the battery is
completely discharged.
Battery Specifications
Type
Dimensions Nominal Voltage
Usability
Fenix ARB-L18 Series
18650
3.6V/3.7V
Recommende
d
√√
Fenix ARB-L2 Series
18650
3.6V/3.7V
Recommende
d
√√
Non-rechargeable
Battery
(Lithium)
CR123A
3V
Usable
√
Rechargeable Battery
(Li-ion)
18650
3.6V/3.7V
Caution*
！
Rechargeable Battery
(Li-ion)
16340
3.6V/3.7V
Caution*
！
Rechargeable Battery
(LiFePO
4
)
18650
3.2V
Banned
×
*Li-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.
④
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.
