Over-heat Protection
The flashlight will accumulate a lot of heat when it is working at Turbo brightness level.
When it works at Turbo for 5 minutes, the flashlight will automatically downshift to High
output to prevent the light from overheating. If the Turbo output is needed, please reset it
again. But the flashlight could be damaged or the normal service life could be shortened
because of continuous use like this.
Low-voltage Warning Function
When the voltage level drops below the preset level, the flashlight is programmed to
downshift to a lower brightness level. When this happens in Low output mode, 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 automatically and will work
until the over-discharge function stops the battery from working.
Note: This only works on 16340 rechargeable Li-ion battery. When the voltage of 16340
battery is detected lower than 3V, low-voltage warning function will fail if the flashlight is
turned on again.
Magnetic Suction Charging
Connect the USB AM port of the charging cable to the power source, the indicator light will
turn green. Then draw the magnetic end of the charging cable close to the flashlight, the
charging cable will absorb to the charging port automatically and the charging has begun.
The indicator light will flash green in charging process. Last the indicator light turns solid
green when charging completely done. The normal charging time is about 1.5 hours.
Note:
1. RC09 only charges normal on 16340 rechargeable battery, Fenix ARB-L16-700 battery
with protective circuit is recommended.
2. Charging with the light on is not recommended, doing so may cause extended charging
time or less fully charged battery. If emergency lighting is needed, the flashlight is only
available at Mid output level when it is charging.
Battery Specifications
Type
Dimensions Nominal Voltage
Usability
Fenix ARB-L16-700
16340
3.7V
Recommended
√
Rechargeable Battery
(Li-ion)
16340
3.6V/3.7V
Cautious*
！
Notice: Under emergency circumstances, CR123A Lithium battery is available, but
charging is prohibited. Rechargeable Li-ion battery with no protective board is forbidden.
*16340 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