Waterproof 18650 Battery Pack Case for Bicycle Bike Lights

Keep your bike lights powered through every ride with this rugged Waterproof 18650 Battery Pack Case. Designed specifically for cyclists, this compact ABS housing holds 4× 18650 batteries and shields them from rain, splashes, and dust — so you can focus on the road ahead, not your power supply.

Made in Mainland China.

Why Cyclists Love This Battery Case

• Weatherproof Housing: Sealed construction guards against rain, splashes, and trail dust — perfect for all-season and night riding.
• Dedicated Bike Light Power: Purpose-built to power LED headlights, bike torches, and handlebar lamps with consistent, reliable output.
• Secure Battery Retention: Sturdy inner compartment keeps 4× 18650 cells firmly in place, preventing movement and accidental disconnection on rough terrain.
• Convenient Cable Outlet: Built-in port lets you route your power cable cleanly to your light while keeping the interior fully enclosed.
• Lightweight & Mount-Ready: Compact ABS build is easy to strap to your frame, handlebar, or pack — ships with an included mounting strap.
• Versatile Use: Ideal for mountain biking, road cycling, camping, and any outdoor activity needing a portable, dependable power source.

Specifications

• Model: 18650 Battery Box
• Battery Compatibility: 4× 18650 (batteries not included)
• Material: ABS plastic
• Color: Black
• Waterproof: Yes
• Application: Bicycle / bike lighting power supply

Package Contents

• 1× Waterproof Battery Pack Case
• 1× Mounting Strap

Note: 18650 batteries are not included. Slight color variation may occur due to display settings. Measurement tolerance of ±1–3 cm applies.

For cycling safety tips and guidance on riding with lights, visit the U.S. Consumer Product Safety Commission – Bicycle Safety.

Frequently Asked Questions

Q: Are 18650 batteries included with this waterproof battery pack case?

A: No, 18650 batteries are not included. The package contains the waterproof battery pack case housing and one mounting strap. You will need to purchase 4× 18650 rechargeable batteries separately to use with this case.

Q: Is this 18650 battery case compatible with all bicycle LED headlights?

A: This battery pack case is designed as a general-purpose 18650 power supply for bicycle lamps, LED headlights, and bike torches that accept external battery input. Please verify your light's connector type and voltage requirements before purchasing to ensure compatibility.

Q: How do I mount the 18650 battery pack case on my bike?

A: The included strap allows you to secure the case to your bicycle frame, handlebar, or top tube quickly and easily. Its compact, lightweight design also makes it suitable for carrying in a saddlebag or handlebar bag during mountain biking, road cycling, or camping trips.

Q: How waterproof is this battery case?

A: The housing is constructed from durable ABS plastic with a sealed cover designed to protect against rain splashes and trail dust during outdoor cycling. It is splash-resistant and suitable for typical wet-weather riding conditions.