Fenix E20 V2 Review: The AA-Powered Everyman Light
The short version: 350 lumens on one AA battery, in Fenix's no-nonsense tactical format. It's the light you recommend to someone who doesn't want lithium cells, chargers, or another cable in their life — a AA from any store on earth runs it, and Fenix's build means it survives the drawer it lives in.
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Who this light is for
The AA battery is the most universal power source humans have agreed on, and the E20 V2 is Fenix's statement that a serious light shouldn't require anything exotic. 350 lumens from a single alkaline AA — enough for rooms, paths, and every close-range task — with the option of a 14500 lithium cell for users who want more and maintain rechargeables.
This is the glovebox light, the emergency-kit light, the "hand it to a relative" light. It's also the right pick for international travel, where AA batteries are the one cell format guaranteed to exist in every village on the planet. The tactical styling — dual switch, tail-capable — makes it equally at home in a work context.
Specifications
All figures below are Fenix's published ratings, not our measurements.
| Maximum output | 350 lumens on AA |
| Battery | 1× AA (2 alkaline included in bundle) or 14500 Li-ion |
| Switch | Dual: side switch + tactical tail |
| Body | Anodized aluminum |
| Rating | IP-rated water and impact resistance |
| Warranty | Fenix limited lifetime |
Why AA still matters
Every other light in this batch charges over USB-C or takes lithium primaries. The E20 V2 runs on a battery sold at every pharmacy, supermarket, and gas station in the developed world — and NiMH rechargeables make it cheap to run forever. For emergency kits, that availability is a genuine feature: a light whose fuel is never out of stock.
The tactical dual-switch layout gives you instant-on from the tail with a thumb in an overhand grip, and mode selection from the side — the same layout philosophy as Streamlight's ProTac line, minus the strobe-deletion programming. For $45 it's a lot of light with very little learning curve.
Where it falls down
350 lumens is 2015-era output. Rechargeable lights half this price now post 600–1,300-lumen bursts. The E20 V2's counterargument is fuel availability, not specs — but you should be clear-eyed that you're trading output ceiling for it.
Alkaline AA batteries leak. The same advice we give for every disposable-cell light applies with more force here, since the drawer-storage use case is its natural home: use NiMH or lithium primaries for anything that sits, or accept a calendar reminder to swap cells.
Bundle listing quirks. The Amazon listing bundles two EdisonBright alkalines, sometimes shows no featured buy box, and stock fluctuates. Check the seller before ordering.
No USB-C, no dock, nothing. That's the point — but buyers who've internalized rechargeable-everything will find the E20 V2 deliberately old-fashioned.
Pros
- Runs on the most available battery on earth
- NiMH rechargeables make it cheap to run
- Dual switch — tail instant-on, side modes
- Fenix build quality at a mid price
- Perfect for kits, travel, and lending
Cons
- 350 lm is modest by modern standards
- Alkalines leak if stored long-term
- Bundle listing adds price and confusion
- No USB-C or charging anything
What to buy instead
| If you want… | Buy this | Why |
|---|---|---|
| Rechargeable Fenix | E18R V2.0 | 1,200 lm, USB-C, 16340 |
| Tiny and cheap | RovyVon A3 | 650 lm keychain, $20 |
| AA, tactical, cheaper | MicroStream | 45 lm AAA one-mode simplicity |
| Serious output | Seeker Ultra | 4,800 lm flagship |
The verdict
The E20 V2 is a tool built for the world as it is: one AA, one button on the tail, 350 honest lumens, and build quality that outlasts the drawer it lives in. It won't impress anyone who reads lumens for sport — and it will be the light that works in the airport, the hurricane kit, and your uncle's glovebox.
Buy it for the battery format, not the output. Pair it with NiMH cells and a charger from our accessories guide and it's the cheapest-to-own serious light on this site.
Frequently asked questions
Can the E20 V2 use rechargeable batteries?
Yes — NiMH AAs work well and make it cheap to run, and a 14500 lithium-ion cell boosts output beyond the 350-lumen AA rating for users who maintain rechargeables. Alkalines work fine but will eventually leak if stored in the light long-term.
Is 350 lumens enough for everyday use?
Comfortably, for indoor and close-range tasks — rooms, paths within about 30 meters, repairs, dog walks. It is not a search light or a trail tool at distance. The dual-switch layout makes the levels you'll actually use easy to reach.
E20 V2 or the rechargeable E18R V2.0?
The E18R V2.0 posts triple the output and charges over USB-C; the E20 V2 runs on batteries available anywhere and never needs a cable. The E18R is better for daily carriers; the E20 V2 is better for kits, travel, and people who hate cables.
Does it have a strobe, and can you avoid it?
It has strobe reachable through the interface, Fenix-style. It's not a one-click accident like some budget lights, but if strobe-free operation is a requirement, the ProTac 2L-X's TEN-TAP programming is the light that lets you delete it outright.