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Fenix E20 V2.0 AA Flashlight

$62.00 $44.95

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SKU: E20V2BKN/ABarcode: 6942870307381N/A

Product Overview

The Fenix E20 V2.0 AA flashlight has been upgraded to be brighter and better than its predecessor. Powered by the included AA batteries. It has a maximum output of 350 lumens and the tail switch operates all functions including on/off and four brightness levels, always starting on low. At only 5” long, this flashlight is a perfect everyday carry size. The Fenix E20 V2.0 also features a patented ultra-thin optical lens with an automobile coating which reduces weight and allows for clearer vision. This flashlight is built rugged with a hard-anodized aluminum finish and an IP68 rating; dust-proof and waterproof underwater to 2 meters. The Fenix E20 V2.0 flashlight is a great option for those looking for an affordable standard AA powered flashlight in a compact everyday carry size.


Max Lumens: 350
Max Beam Distance: 413 feet (126 meters)
Max Runtime: 200 hours
Lighting Modes: 4 brightness levels
Bulb Type: Luminus SST20 LED
Lens Material: Polycarbonate
Size: Length: 5.0” (127mm) Body: 0.7” (16.8mm) Head: 0.8” (21mm)
Weight: 1.5 oz. (42g) excluding batteries
Battery: Two alkaline AA batteries. Ni-MH batteries recommended for best overall performance.
Included: Two AA alkaline batteries, spare O-ring, lanyard
Warranty: Limited Lifetime Guarantee from Fenix Lighting USA

More Information

Additional Features of the Fenix E20 V2.0 AA Flashlight

  • A Luminus SST20 LED with a lifespan of 50,000 hours.
  • Powered by 2 x AA batteries (Ni-MH/Alkaline).
  • Digitally regulated circuit for maintaining a stable output.
  • Intelligent overheat protection against high surface temperature.
  • Reverse polarity protection, to protect from improper battery insertion.
  • One-handed operation with the reverse tail switch.
  • Made of A6061-T6 aluminum.
  • Premium type HAIII hard-anodized anti-abrasive finish.
  • Automobile ultra-thin patented optical lens coating process.
Fenix E20 V2.0 AA Flashlight specs chart


Fenix E20 V2.0 AA Flashlight runtime chart


Fully press the tail switch to turn on/off the light.


Output Selection

With the light switched on, tap the tail switch to cycle through Eco→Low→Med→High.


Battery Specifications


TypeDimensionsNominal VoltageUsability 
Ni-MH BatteryAA1.2VRecommended√√
Alkaline BatteryAA1.5VUsable
Non-rechargeable BatteryAA1.5VUsable
Rechargeable Li-ion Battery145003.7VBanned×

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.


Battery Replacement

Unscrew the light tail and insert the battery with the anode side (+) towards the light head, then screw the light tail back on.


Low-voltage Warning

When the voltage level drops below the preset level, the flashlight is programmed to downshift to a lower brightness level until Eco output is reached. To ensure normal use, the flashlight will not turn off automatically and will work till the battery runs out completely.


Intelligent Protection

The light will accumulate a lot of heat when used on High output level for extended periods. When the light reaches a temperature of 58°C or above, the output will automatically step down by about 1% every 1 second until reaching Med output level to reduce temperature. When the temperature is reduced, the output will gradually increase by about 1% every 5 seconds until reaching High output. The original output of every mode is restored each time the light is switched. Note: *The above specification is from the result produced by Fenix through its laboratory testing. Actual output may vary slightly according to the working environments.


Usage and Maintenance

  • Disassembling the sealed head can cause damage to the light and will void the warranty.
  • Fenix recommends using an 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.
  • Unscrew the tail cap half a turn or 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 battery needs replacing. 
    Solution: Replace battery (Ensure battery is inserted according to the manufacturer’s specifications). 
    B: The threads, PCB board 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 contact your authorized distributor.



  1. This flashlight is a high-intensity lighting device capable of causing eye damage to the user or others. Avoid shining the flashlight directly into anyone's eyes.
  2. All information provided in this manual is subject to change without prior notice.

FAQs about E20 V2.0 Flashlight 


Q1. What is the product positioning of E20 V2.0? And who are the target customers? 

A: The Fenix E20 V2.0 is a portable EDC flashlight. It achieves one-handed output selection through the single tail switch. Fitted with a single Luminus SST20 LED, the light delivers a max output of 350 lumens and a max beam distance of 126 meters. The light comes with two AA batteries and the batteries can be replaceable. Additional features include 4 output levels, digitally regulated circuit and IP68 rated protection. The flashlight is versatile in outdoor activities and daily life. 


Q2. What are the key features and benefits of E20 V2.0? 

A: 1) 350 lumens maximum output. 

  2) 126 meters maximum beam distance.  

  3) One-handed operation with the tail switch. 

  4) 2 AA batteries.  

  5) Automobile ultrathin optical lens coating process. 

  6) 42 g light weight. 


Q3. What kind of LED is used in E20 V2.0? 

A: A Luminus SST20 LED. 


Q4. Does E20 V2.0 have overheat protection? 

A: Yes. The light will accumulate a lot of heat when used on High output level for extended periods. When the light reaches a temperature of 58°C or above, the output will automatically step down by about 1% every 1 second  until reaching Med output level to reduce temperature. When the temperature is reduced, the output will gradually increase by about 1% every 5 seconds until reaching High output level. The original output of every mode is restored each time the light is switched. 


Q5. What battery does the E20 V2.0 support? 

A: It supports 2 x AA batteries (Ni-MH/Alkaline). 


Q6. What are the accessories that can be used with the E20 V2.0? 

A: AOF-S filter adapter, AOD-S diffuser tip, AOT-S traffic wand. 


Q7. What should I do if the E20 V2.0 needs repair?

A: 1. 15-day replacement: Fenix will replace identical or equal products with documented manufacturing defects within 15 days of purchase.

2. 2-year free repair: Fenix will repair a light free of charge within 2 years of purchase if problems develop with normal use.

3. Lifetime maintenance: If repair is required after 2 years from the date of purchase, Fenix will charge for parts. The total repair fee is dictated by the cost of the replaced materials.

4. If you need warranty service, fill out the warranty form at https://www.fenixlighting.com/pages/warranty-repairs to start your repair claim.

Product Videos

Customer Reviews

Based on 97 reviews
Marlyn Chen
The batteries couldn't come out within 1 year

The batteries got stuck within 1 year, unfixable and not covered by the warranty..

Hi Marlyn. From talking with our warranty team it sounds like the batteries you had in the light corroded in the light. Certain brands of alkaline batteries are more prone to corrosion than others, and we always recommend with the batteries using alkaline batteries that they aren't left in the flashlight for extended periods of time without use. You can try cleaning the contacts with a cotton swab and rubbing alcohol to see if you can get it working again, so long as you are able to get the batteries out. That being said, no, corrosion of batteries in a light is not covered by our warranty, and most other companies also don't cover it. If you buy products that use alkaline batteries, I would highly recommend taking them out of they are just going to be sitting awhile so that they don't damage the products from corrosion. Or, some quick research might help you determine which brands are less prone to corrosion inside products.


Fantastic flashlight. Small, lightweight yet powerful enough for my daily use.

It tail stands!

Pleasantly surprised to find out that it tail stands! Seems like this feature was a small update to the 2.0 and wasn’t really publicized but they updated to a shorter rear switch. Some youtube videos and online reviews from when the 2.0 was initially released say otherwise.

Bryan Adamson
Great Product

Compact and powerful. Love the fact that it has multiple settings.


I like AA battery flashlights. I have rechargeable lights and they usually are dead when I need them. I always have AA batteries on hand.
Anyway, i purchased this flashlight based on reviews I read on many blogs. I like this flashlight except when I turn it on it starts dim and I have to press the end cap until I get to the high setting. I would rather go from high to low, but oh well.


good light output, wish that I didn't have to click through all settings to get to high every time I use the light

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