Custom Lithium Battery Engineering to Boost Your Energy for Your Devices

Solutions

  • Wide Temperature Battery Pack

    Deliver stable performance from -50°C to +85°C and are certified to international standards.

  • LiFePO4 Battery Pack

    Our LiFePO4 battery packs feature smart BMS (CANBUS, RS485, Bluetooth), support harsh temperatures (-30°C to 60°C), and deliver over 5,000 cycles. With compact designs,waterproofing,self-heating, and immersion cooling technology, we solve key market pain points like overheating, limited lifespan, and instability.

  • Waterproof Lithium Battery Pack

    CMB’s custom waterproof battery packs with IP67–IP69 ratings are engineered for durability,delivering reliable power in harsh, high-pressure, and dust- or water-prone environments.

  • 21700 Battery Pack

    CMB’s 21700 lithium-ion battery pack features a compact, high-density design, reliable performance from -40℃ to 75℃, and advanced protection options with hardware or Smart BMS (CANBUS, RS485, UART).

  • Lithium Modular Battery Pack

    CM Batteries designs and manufactures scalable modular lithium battery systems that combine high capacity, flexibility, and safety for diverse applications—from AGVs and marine vessels to energy storage—enabling efficient, cost-effective, and reliable power solutions.

GPS Battery

► High Temperature Battery Pack

CMB’s high-temperature lithium-ion battery packs, built with 18650 cylindrical cells, deliver reliable performance from -40°C to +85°C, meet international certifications (CE, RoHS, REACH, UL), and provide a trusted, cost-effective solution proven in nearly 200 industrial projects.

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► Low Temperature Battery Pack

Support effective battery discharging at freezing temperatures as low as -50°C with high capacity retention. Support to charge below at -20°C with self-heating and waterproof IP68 functions.

12V LiFePO4 Battery Pack

► 12V LiFePO4 Battery Pack

CMB’s 12V LiFePO4 battery packs feature a modular design with flexible customization—offering options like waterproofing, Bluetooth, compact size, and self-heating for reliable performance in diverse environments.

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► 72V LiFePO4 Battery Pack

Offer reliable performance in extreme conditions, smart BMS with advanced communication, certified safety compliance, and over 3000 cycles for long-term durability and value.

Certified

► Certified for Safety

our battery packs can be certified to meet industry standards such as UL, CE, RoHS, and UN38.3 for safe transportation.

IP67 Waterproof Battery

► IP67 Waterproof Battery

CMB’s IP67 batteries are engineered to resist dust and survive 1-meter water submersion for 30 minutes without damage, meeting IEC 60529 / GB 4208 standards.

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► IP68 Lithium-Ion Battery

CMB’s IP68 lithium-ion battery packs are built for harsh environments, offering complete dust protection and reliable performance during continuous water submersion up to 100 meters for 5 hours.

Certified

► Certified for Safety

our battery packs can be certified to meet industry standards such as UL, CE, RoHS, and UN38.3 for safe transportation.

21700 Battery Pack

► 3.7V 21700 Battery Pack

High discharge rates (up to 10C) for high-power applications, stable performance across a wide temperature range of -20°C to 75°C, and can be fully customized in terms of voltage, capacity, and size so they fit perfectly into your equipment designs.

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► 25.2V 21700 Battery Pack

Offering superior energy density, excellent cost-effectiveness, and an extended cycle life. Compared to traditional 25.2V 18650 battery packs, these advanced power solutions are emerging as the preferred choice in the market.

Certified

► Certified for Safety

our battery packs can be certified to meet industry standards such as UL, CE, RoHS, and UN38.3 for safe transportation.

Low Temperature Battery Pack

► High-Flexibility Lithium Modular Battery Packs

At CM Batteries, we specialize in high-performance custom modular battery packs using: ✔ NCM (High Energy Density)； ✔ LiPo (Lightweight & Compact)； ✔ LiFePO4 (Long Life & Safety)； We Also Provide: Smart BMS Development – Smart monitoring, balancing, and protection for your battery system.

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► Certified for Safety

our battery packs can be certified to meet industry standards such as UL, CE, RoHS, and UN38.3 for safe transportation.

Applications

  • Internet of Things (IoT)

  • Marine

  • Power & Garden Tool

  • Medical Equipment

  • Robotics & Drone

Sensor

► Sensor


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► GPS/Tracking


Certified

► Ecall


Electric Surfboard

► Electric Surfboard


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► Electric Boats&Yachts


Driving System(Boat)

► Driving System(Boat)


E-mower Robot

► E-mower Robot


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► E-chain Saw


Certified

► E-suction Robot


Medical Cart

► Medical Cart


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► Medical Robot


Certified

► Medical Tools


Industrial Robots

► Industrial Robots


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► Service Robots


Certified

► Warehouse Logistics Robots


Energizing Our World Brilliantly
for over 15 years.

CM Batteries has been the trusted custom battery pack manufacturer behind global tech innovators. We don't just manufacture batteries – we engineer tailor-made, certified packs that thrive in the most demanding environments.
Your Vision. Our Power. Built for Absolute Reliability.

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Years Industry Expertise
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MWh Annual Pack Production Capacity (2025)
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UL-Compliant Projects Delivered
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Custom Solutions
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°C to 85°C
Extreme Environment
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m Depth
IP68 Waterproof

01

People

Serving our customers, our employees, and people in need around the world.

02

Products

Creating high-quality,long-lasting, and often custom-designed batteries to fuel devices of all shapes,sizes, and functions.

03

Planet

Preventing tech waste from making its way into the environment.

What’s Driving Us?

A brighter future energized by opportunities for all. We’re driven to make products we’re proud of, but our mission extends
well beyond that. CMB is here to provide energy to:

Our Work in Action: Proven Capabilities

Developing a custom battery pack demands expert precision. At CMB, we turn your complex concepts into certified, scalable custom battery solutions. We manage the entire lifecycle 100% in-house—guiding your project through definition & evaluation, design & development, and rigorous verification & reliability testing. From seamless battery certification and scalable production to secure global logistics and continuous product improvement, we are your trusted partner every step of the way.

Battery spot welding

Keep up with our latest news & updates

Stay Ahead with Technology and Innovation in Lithium Battery Industry

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CMB WHITE PAPERS Access our library of resources to stay ahead in the rapidly evolving energy landscape with innovative, reliable, and sustainable battery solutions. Featured White Paper Published: April 2025...

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Taking Battery Pack Manufacturing Technology To The Next Level

Taking Battery Pack Manufacturing Technology To The Next Level

With a core mission to energize products and people with our high quality battery packs and moral-driven actions, CMB is committed to continuing the advancement in battery pack technology, which...

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Battery Certifications: A Comprehensive Guide to Lithium-Ion Battery Pack Certificates

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24V 100AH Series-Parallel Battery Application

How To Connect Two 12 Volt Batteries In Parallel & Series?

Connecting 12V batteries in parallel and series is an effective solution, giving your customers with better experience. Your various applications, such as solar power systems, uninterruptible power supply systems, golf carts, and…

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