Battery Equivalents and Replacements

GearLight S2000 LED Flashlight

GearLight S2000 LED flashlight is a very bright, relatively compact LED flashlight, suitable as an EDC flashlight, but also for hiking, camping, hunting, and similar outdoor activities due to its robust body and resistance to dust, mud, and water.

GearLight S2000 LED flashlight is powered only by four AA batteries and it doesn't accept lithium CR123A or 18650 batteries.

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GearLight S2000 Features and Specifications

GearLight S2000 LED flashlight feature physical dimensions of (L x d) 7.68 x 1.77 (1.33) inches (~19.5 x 4.5/3.4 cm) and it weighs ~375 grams.

The body is made of anodized aluminum, ensuring strong and lightweight construction, resistance to water and various chemicals.

As said before, the unit is powered by 4 AA batteries which are not included. GearLight S2000 LED flashlight does NOT accept CR123A, 18650, or similar lithium rechargeable batteries.

But, since high-quality AA batteries have a shelf life of 5-10 years, some even more, GearLight S2000 LED flashlight can be used as an excellent EDC battery and used at the moment notice even after years of being stored.

GearLight S2000 LED flashlight comes with a single XM-L2 LED and delivers 1200 lumens of light.

Lenses are zoomable, allowing the user to set a wide light beam, but also to focus the light beam on the object 1000 feet (~305 m) away.

Also, it comes with several light modes, easily controllable via a tail switch.

Note: when the unit is in the Low Mode, it can operate 10+ hours using brand new, high-quality AA batteries.

According to the manufacturer, GearLight S2000 LED flashlight features IPX4 water resistance level and is capable of surviving the drop from the 10 feet (~3.05 m) height.

What's in the Box?

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When the unit arrives, the box contains:

  • 1x GearLight S2000 LED Flashlight
  • 1x AA Battery Holder
  • 1x Lanyard
  • 1x Operation Guide
  • 1x Warranty Card

 GearLight S2000 LED flashlight comes with a 1-year limited warranty.


Long Story Short: If You are looking for a medium-size, tough and at the same time affordable flashlight, that can fit your backpack, car's gloves compartment, drawer, or similar, consider this model.

Since it doesn't support the use of rechargeable CR123A, 18650, or similar batteries, it is perhaps not the best choice for people that rely on and use their flashlights on a daily basis.

But, with 1200 lumens of light, zoomable lenses, IPX4 water resistance, 10 feet drop height, multiple operating modes, etc. it is one of the most popular best-buy models in its class.

For more reviews and recommendations, feel free to check the GearLight S2000 LED Flashlight Amazon link (link opens in the new window).

Amazon Search:

- LED Flashlight

- Tactical Flashlight

- 18650 Flashlight

Note: Amazon links open in the new windows, feel free to check them for the most up-to-date offers and prices.