Flashlight Batteries

Achieve Reliability with High-Performance Flashlight Batteries

Never get stuck in the dark with STL Tactical Deals’ wide selection of the highest quality batteries to power your flashlights and portable lighting solutions.

Looking to upgrade old batteries or switch to rechargeables? We offer alkaline, lithium, and rechargeable batteries from top brands with different capacities, voltages, and feature sets to meet your performance needs.

Whether you need everyday batteries for around the house or big flashlight battery options for your heavy duty lights, we have you covered. Our batteries are designed to provide long-lasting, consistent power output so you never get stuck in the dark. Shop our full range of flashlight batteries now and illuminate your world.

Our Collection

Alkaline Cells: 

Our alkaline AA and AAA batteries provide stable voltage output as the battery drains and a long shelf life of up to 10 years. These batteries provide reliable power for LED flashlights and safety lights.

Lithium Cells: 

The rechargeable 18650 lithium-ion battery has high capacity and current handling to power premium LED flashlights

Rechargeable NiMH Cells: 

Our high-capacity rechargeable NiMH AA and AAA batteries offer low self-discharge capacity, allowing them to hold a charge for up to 12 months when not in use. NiMH batteries can be recharged hundreds of times while maintaining 70–80% of their initial capacity.

USB Rechargeable: 

Charge your flashlights from laptops, power banks, or wall adapters whenever or wherever you want. Our USB rechargeable batteries feature lithium-ion. Built-in protection circuits prevent overcharging and short circuiting. The USB interface allows charging.


We offer large D cell batteries that offer the most juice to really crank up flashlight lumens. They excel in big handheld spotlights.

C Cells:  

For more demanding lights, C batteries provide increased power and runtime. They work well in lanterns.
Maximize the runtime and dependability of your flashlights with our premium selection of flashlight batteries designed for exceptional performance.

Coin/Button Cell: 

Tiny coin or button cell batteries fit in miniature keychain lights. We offer convenient multi-packs of CR2016, CR2032, LR44 and more.


What types of batteries are typically used in flashlights?
AA and AAA batteries are the most commonly used sizes for flashlights, and you have the option to choose between alkaline and lithium types.

How long is the expected battery life for AAA batteries in a flashlight?
When utilizing 3W LED flashlights powered by AAA batteries, you can anticipate a duration of approximately 30 minutes.

Do LED flashlights require batteries?
LEDs demand less power, translating to fewer battery replacements. In an LED flashlight, the batteries will last between 6 to 10 times longer compared to incandescent flashlight batteries.

What is the electrical current in a flashlight battery?
In a flashlight with two batteries connected in series, the typical current is 1.0 A. The current is contingent on the resistance of the bulb. If a flashlight with two series-connected batteries draws a current of 1.0 A, it consumes 3 W of power.

Is it possible to recycle lithium batteries?
Yes, lithium-ion batteries are highly recyclable, with a recycling rate of approximately 95%, as they retain their value even after the battery’s lifespan, enabling recycling facilities to recover these materials.

Do lithium batteries fade?
Yes, their capacity gradually diminishes, resulting in shorter runtime as time passes but they do not fade out abruptly.

Is it safe to leave a lithium-ion battery in a flashlight?
Yes, lithium batteries are well-suited for storage in flashlights. Lithium batteries are rated for storage for up to 20 years.