Intelligent Memory Circuit
The light memorizes the last selected brightness level on White light mode (excluding strobe).
When turned on again the previously used brightness level will be recalled.
Battery Specifications
Type
Dimensions Nominal Voltage
Recommended
Rechargeable Battery
(Li-ion)
18650*
3.6V
Fenix ARB-L18 Series
Non-rechargeable Battery
(Lithium)
CR123A
3.0V
CR123A (No charging)
Warning: 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.
*18650Li-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 tail cap to insert the battery with the anode side (+) towards the light head, then
screw the tail cap back on.
Battery level indication
When the light is switched on, the battery level indicator inside the side switch will light up to
display the battery status, the indicator will stay on for 3 seconds before it goes off.
Green light on: saturated 100% - 85%
Green light flashes: sufficient 85% - 50%
Red light on: poor 50% - 25%
Red light flashes: critical 25% - 1%
Note: This only works with Fenix ARB-L18 Series 18650 rechargeable Li-ion battery.
Low-voltage Warning
When the voltage level drops below the preset level, the flashlight is programmed to downshift
to a lower brightness level until Low output is reached. When this happens in Low output mode,
the indicator in the mid of the functional side switch will flash red to remind you to recharge or
replace the battery. To ensure normal use, the flashlight will not turn off automatically and will
work till the battery runs out completely.
Note: This only works with Fenix ARB-L18 Series 18650 rechargeable Li-ion battery.
