Our latest product line

Picatinny Rail Battery Compartment for Thermal Scopes

During the development of our next-generation thermal riflescope, we recognized the significant performance enhancement offered by an external power supply. In our search for a suitable external power solution for our new Trike thermal riflescope, we were surprised to find that no such product existed on the market. Consequently, we decided to develop a professional external power supply device for firearms ourselves.

The EPS series is our professional external battery pack for firearms. It comes in two models: EPS-A1 takes one standard 18650 battery, and EPS-A2 takes two standard 18650 batteries.

Applications

  • Thermal rifle scopes
  • Tactical optics
  • Helmet-mounted thermal devices
  • Outdoor hunting equipment

Why Use External Battery Compartment?

  • Extended operation time
  • Stable power supply
  • Fast battery replacement
  • Better balance for rifle systems

OEM & Customization

  • Custom rail dimensions
  • Battery configuration options
  • Logo engraving
  • Surface coating customization

Compatible Devices

Compatible with:

Related Guides

Retail Price

$49.98
FPS-A1
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eps-a1 can be shipped from USA

The EPS-A1 is a professional external picatinny battery compartment, compatible with one standard 18650 lithium battery. It features a rugged housing designed to withstand frequent impacts in outdoor environments.

Main Specification

Core Functions Charging & Discharging
Input Interface Type-C
Output Interface Type-C
Input Voltage 5V 1A
Battery 1x18650
Shell Material 6061-T6
Dimensions 90x40x30mm
Weight 80g
Shock Resistance 800G
Waterproof Rating IP68

Picatinny Rail Battery Compartment for Thermal Scopes
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Compatible with all types of 18650 batteries

The adaptive design with high-strength springs ensures full compatibility with both flat-top and button-top 18650 batteries.
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800G Shock Resistance

In professional shock testing, each unit withstands 10 cycles of 600 impacts at 800-1200G. Every single unit passed.
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Rugged Structure With Compact Design

Precision-machined from aerospace-grade 6061-T6 aluminum in a single CNC cycle. Full-metal construction delivers reliable strength at just 88 grams.
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IP68 Dust and Water resistance

The EPS-A1 carries an IP68 rating, which means it's fully sealed against dust and can withstand immersion in one meter of water.
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One port. Two functions.

Thanks to our independently developed power management chip, the EPS-A1's single Type-C port supports both charging and discharging. Plug in a charger to recharge the battery, or connect your thermal scope to keep it running in the field， no need to switch ports or swap cables.
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Dual Type-C cable included.

The package comes with a dedicated dual Type-C cable for both charging and discharging the EPS-A1. One end features a 180-degree straight connector, the other a 90-degree elbow connector, making it easy to connect in tight spaces.

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