Custom Waterproof Lithium Battery Pack

CM Batteries offers custom waterproof battery packs with IP67, IP68, and IP69 protection levels, ensuring reliable performance in demanding environments. These rugged power solutions are ideal for:

Outdoor & Marine Applications
Sensors & Monitoring Systems
Diving Equipment & Underwater Robotics
Military & Special Underwater Operation Devices

Engineered for durability and resistance to water, dust, and high-pressure conditions, our batteries provide dependable power for critical operations. The types of waterproof li ion battery packs are classified as 18650 battery packs,21700 battery packs, LiFePO4 battery packs, and Lipo Battery packs.

Waterproof Battery Protection Levels

Engineered for extreme conditions with certified protection against water and dust ingress

IP67 Waterproof Battery

Designed to withstand dust ingress and temporary water immersion according to IEC 60529 / GB 4208 standards.

CMB’s IP67 batteries withstand submersion in 1M of water for 30 minutes without leakage or damage.

Explore IP67 Solutions →

IP68 Lithium-Ion Battery

Withstands dust, dirt, and prolonged submersion in water for harsh environment applications.

CMB’s IP68-rated packs withstand continuous submersion in 1–100 meters of water for up to 5 hours.

Explore IP68 Solutions →

IP69K High-Pressure Battery

Withstands high-pressure water jets and extreme conditions.

Highest level of protection against both dust and water ingress for industrial applications.

Explore IP69 Solutions →

CMB’s IP67 vs IP68 vs IP69 Waterproofing Ratings

Rating	Protection Level	Test Conditions	Depth / Duration
IP67	Immersion protection	Temporary water submersion	1m for 30 minutes
IP68	Continuous immersion	Deeper/longer water exposure	1–100m for up to 5 hours
IP69K	High-pressure water jetting	80°C water, 80–100 bar, multi-angle testing	100–150mm / 30 sec per position

Key Advantages of CMB’s Custom Waterproof Battery Solutions

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Decade-Long Expertise

Decade-long expertise in underwater engineering from shallow-water devices to deep-sea equipment.

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Advanced Technology

Patented sealing techniques (laser welding, epoxy potting, silicone gaskets) for IP68/IP69K waterproofing
Thermal management innovations to prevent overheating in high-pressure environments
Pressure-resistant enclosure designs (corrosion-proof aluminum, marine-grade aluminum)

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Industry Pioneer

Being one custom battery packs supplier pioneer in underwater niche applications.

Custom Waterproof Battery Pack Process

How We’ll Work Together

Discover

We’ll ask questions via our inquiry about your waterproofing requirements, including IP rating, voltage, capacity, and special environmental conditions.

Define

Our engineers will outline a waterproof battery solution tailored to your application.

Estimation

We’ll provide a quotation based on your volume and customization needs.

Prototype

You’ll receive a waterproof battery sample for testing and feedback.

Contract

Once approved, we’ll proceed with the contract and production plan.

Custom Waterproof Battery Pack FAQ

What waterproof ratings do you offer?

CMB can provide IP67,IP68,IP69 waterproof rating.We also can custom waterproof rating as your needs.Like deeper submersible (e.g., 100m+) or specialized chemical resistance.

Can you customize size/shape for our devices?

Yes. We design flexible form factors (pouch, cylindrical, prismatic) to fit your enclosure.
Options:
Custom molds for plastic/aluminum casings.
Waterproof cable and connectors customization.