Fenix UC02SS Rechargeable Mini Keychain Flashlight

Rated 5.00 out of 5 based on 3 customer ratings
(3 customer reviews)

Fenix UC02SS is a mini keychain USB rechargeable flashlight. From a single 10180 Li-ion battery, it delivers maximum output of 130 lumens. The two output levels are controlled by a simple twist of the flashlight head. This stainless steel flashlight has IP68 classification which is water proof to 2m and dust proof. One of Fenix’s best every day carry flashlights, the UC02SS is reliable and easy to use.

$40.00 $29.95

5.00 out of 5
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For commercial orders and group purchases, contact us at (888) 775-9996 x2, or

Max Lumens: 130
Modes: 2

Flashlight Size:
Length: 1.70” (43.2mm)
Head: 0.55” (14mm)

Flashlight Weight: 0.65 oz. (18.4g) excluding battery

Batteries: One ARB-L10-80 10180 rechargeable Li-ion battery (included)

Included: Lanyard, ARB L10-80 10180 Li-ion battery, spare O-ring

Warranty: Limited Lifetime Guarantee from Fenix Lighting U.S.

MODE Lumens
Impact Resistance
High 130 25min 157ft (48m) 570cd
Low 10 3h 50min 46ft (14m) 50cd
1m IP68, waterproof underwater 2m, dust proof
Additional Features
  • Uses Cree XP-G2 S2 white LED with a lifespan of 50,000 hours
  • Powered by one 10180 rechargeable Li-ion battery
  • Micro USB charging port
  • Reverse polarity protection, to protect from improper battery installation
  • Made of quality stainless steel
  • High efficiency lens with total reflective coating
  • Two color options

Operation Instructions

To turn on the light, tighten the head lightly until the light comes on. This will be Low mode. To enter High mode, fully tighten the head (be careful not to overtighten it). To switch off, loosen the head until the light goes out.


  1. Completely remove the light head and plug the Micro USB port of the charging cable into the light’s port
  2. If the battery power is sufficient, the charging indicator will display green; otherwise the charging indicator will display red while charging, and will turn to green when fully charged. The normal charging time is about 45 minutes.
  3. Unplug the charging cable and screw the light head back for normal use.
  4. Recharge a stored UC02SS every 3 months to maintain optimum performance of the battery.

Warning: To charge with non-rechargeable battery in the light is prohibited, and may cause explosion.

*10180 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.

Battery Replacement
Unscrew the light tail cap to insert the battery with the anode side (+) toward the light’s head, then screw the light 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 flashlight will not be used for an extended period, remove the battery, or the flashlight could be damaged by electrolyte leakage or battery explosion.
  • 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 flashlight’s performance as dirty contacts may cause the flashlight to flicker, shine intermittently or even fail to illuminate for the following reasons:

A: The battery needs replacing or needs to be charged.
Solution: Replace battery (Ensure battery is inserted according to the manufacturer’s specifications).

B: The threads, PCB boards contact or other contacts are dirty.
Solution: Clean the contact points with a cotton swab soaked in rubbing alcohol.

If the above methods don’t work, please refer to the warranty policy before contacting your authorized distributor.

The flashlight is a high-intensity lighting device capable of causing eye damage to the user or others. Avoid shining the light directly into anyone’s eyes.

Customer Photos

Instagram photo by budgetedc

Reviews (3)

3 reviews for Fenix UC02SS Rechargeable Mini Keychain Flashlight

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  1. Rated 5 out of 5

    Chris (verified owner)

    It is about half the size of my pinkie finger and can light up a room. Amazing.

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  2. Rated 5 out of 5

    Linda (verified owner)

    This is one cool little flashlight that is amazingly bright for its size. I have it in both stainless and aluminum and really love them both. Just what I was looking for because it doesn’t take up much room in my pocket on my keychain. A nice gift for good friends also.

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  3. Rated 5 out of 5

    Stephen (verified owner)

    Very nice little flashlight!! I have a Fenix PD40 that I love, but a flashlight is only useful when you have it. I got a couple UC02’s (blue aluminum) as stocking stuffers this past Christmas, and a blue UC02SS for myself. I have to say, even though it’s heavier, I love the build of this one! I keep it attached to my car key which makes it very handy, and it’s the perfect brightness for walking to the car or some short distance in the dark (it could be used for walks, but the high setting only lasts 25 minutes). You only know when to charge by the brightness going down, but charging works great (micro USB). I did put a little lubricant on the threads, but the dual clear silicon O-ring design works just fine without any. The beam pattern is a nice uniform cone with a nice angle (maybe 30-40 degrees?). In all, I’m very satisfied with this flashlight!

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