Custom Lithium Battery Engineering to Boost Your Energy for Your Devices
- 21700 Battery Pack
- LiFePO4 Battery Pack
- Waterproof Lithium Battery Pack
- High Temperature 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.

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

• 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.

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

• 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.

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

• 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.

• 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 for Safety
our battery packs can be certified to meet industry standards such as UL, CE, RoHS, and UN38.3 for safe transportation.
- Internet of Things (IoT)
- Marine
- Power & Garden Tool
- Medical Equipment
- Robotics & Drone

• 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.

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

• 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.

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

• 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.

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

• 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.

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

• 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.

• 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 for Safety
our battery packs can be certified to meet industry standards such as UL, CE, RoHS, and UN38.3 for safe transportation.
CM Batteries
for over 15 years.
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:
Success Stories
Building a brighter future with next-generation power technology.
Our work in action
Our Mission
To energize products and people with our high-quality batteries and moral-driven actions
CMB specializes in engineering rugged, high-performance custom Li-ion battery packs built to thrive in the world’s most demanding environments. We design and deliver custom battery packs that combine cutting-edge technology with military-grade durability, empowering industries—from heavy machinery and aerospace to emergency systems and outdoor tech—to operate reliably in extreme conditions.
Our precision engineering, rigorous testing protocols, and collaborative partnerships ensure your equipment won’t just survive, but excel, even under intense heat, vibration, moisture, or pressure. At CMB, we don’t just power devices—we enable innovation where failure isn’t an option.
What Drive Us
We Believe in the Pursuit of Doing Good
Our values have guided us for years and will continue to represent our strategy for long-term growth and sustainable development.

Proactivity


Collaboration


Quality


Transparency

Our Team
Meet The People At The Center Of All That CMB Does.
Our dedicated employees are at the core of everything that CMB produces. They’re behind the high quality products we create and CMB’s successes as a whole.
Testimonials
What Our Clients Are Saying About CMB

We are an electric surfboard company and have been working with CM Batteries for over five years. As a specialist supplier of custom battery packs, CM Batteries has in my mind gone above and beyond in terms of customer service. Because of the specific nature of our products, the waterproofing and long-lasting functionality of the batteries must be of an extremely high standard. I was pleased that Cherry was able to communicate with me in a way that completely understood my needs and helped me to address my concerns about the quality of the batteries.
JHON REEVE

I would like to congratulate CMB as one of Active’s most trusted lithium battery manufacturer and business partners in China, CMB has been the sole supplier of smart Lithium-Ion battery for our Arrow Smart-Kart for children, and we are very pleaesed with the service CMB has provided since we established our supply-chain partnership almost four years ago. What sets CMB apart is your team’s relentless pursuit of customer satisfaction through quality, service and honesty. We regard CMB as a valued partner in both product development and manufacturing, and I highly recommend CMB as a battery pack supplier to any potential customers.
DAVID BELL
Pioneering Transparency in Battery Manufacturing
At CM Batteries, transparency is a priority at every stage of our manufacturing process, ensuring that customers receive high-quality, long-lasting, and custom-designed battery solutions. As the demand for open, accountable information grows, we empower our customers with clear and accurate insights into every aspect of our process—from advanced battery pack technology and custom design to prototype development, quality control, materials management, and streamlined delivery.
We uphold the highest moral standards to ensure that our commitment to sustainable and responsible production is evident at every step. By sharing our processes and practices openly, we build trust, meet high product standards, and strengthen the bond with our valued customers.
Our Sustainability Commitment
Our mission is creating reliable and long-lasting custom batteries.
We're committed to making a positive impact by embedding core values into our daily practices, from reducing energy use and minimizing waste to enhancing worker livelihood and prioritizing recyclable materials. Our sustainable practices—from safe, eco-friendly chemistries to resource-efficient production—reflect our dedication to delivering quality battery solutions with minimal environmental impact.
Our Business Positioning
CMB specializes in engineering rugged, high-performance custom li ion battery packs built to thrive in the world's most demanding environments. We design and deliver custom battery packs that combine cutting-edge technology with military-grade durability, empowering industries—from heavy machinery and aerospace to emergency systems and outdoor tech—to operate reliably in extreme conditions. Our precision engineering, rigorous testing protocols, and collaborative partnerships ensure your equipment won’t just survive, but excel, even under intense heat, vibration, moisture, or pressure. At CMB, we don’t just power devices—we enable innovation where failure isn’t an option.

Get help finding and using batteries at CM Batteries.com
Battery Pack Solution Guide
We’ll guide you in quickly choosing a custom battery pack tailored to your specific needs.
Battery Certification Support
We assist in designing custom battery packs that meet all required industry standards and certifications.
Battery Pack Technical Support
Learn how our quality control strategies ensure consistent reliability for your battery packs.
Engineering & Design Resources
Access the highest quality technical resources to support your projects and custom battery designs.
We’re ready to craft a battery pack that suits you and your device’s exact needs.
Our Mission
To energize products and people with our high-quality batteries and moral-driven actions
CMB specializes in engineering rugged, high-performance custom Li-ion battery packs built to thrive in the world’s most demanding environments. We design and deliver custom battery packs that combine cutting-edge technology with military-grade durability, empowering industries—from heavy machinery and aerospace to emergency systems and outdoor tech—to operate reliably in extreme conditions.
Our precision engineering, rigorous testing protocols, and collaborative partnerships ensure your equipment won’t just survive, but excel, even under intense heat, vibration, moisture, or pressure. At CMB, we don’t just power devices—we enable innovation where failure isn’t an option.
What Drive Us
We Believe in the Pursuit of Doing Good
Our values have guided us for years and will continue to represent our strategy for long-term growth and sustainable development.

Proactivity


Collaboration


Quality


Transparency

Our Team
Meet The People At The Center Of All That CMB Does.
Our dedicated employees are at the core of everything that CMB produces. They’re behind the high quality products we create and CMB’s successes as a whole.
Testimonials
What Our Clients Are Saying About CMB

We are an electric surfboard company and have been working with CM Batteries for over five years. As a specialist supplier of custom battery packs, CM Batteries has in my mind gone above and beyond in terms of customer service. Because of the specific nature of our products, the waterproofing and long-lasting functionality of the batteries must be of an extremely high standard. I was pleased that Cherry was able to communicate with me in a way that completely understood my needs and helped me to address my concerns about the quality of the batteries.
JHON REEVE

I would like to congratulate CMB as one of Active’s most trusted lithium battery manufacturer and business partners in China, CMB has been the sole supplier of smart Lithium-Ion battery for our Arrow Smart-Kart for children, and we are very pleaesed with the service CMB has provided since we established our supply-chain partnership almost four years ago. What sets CMB apart is your team’s relentless pursuit of customer satisfaction through quality, service and honesty. We regard CMB as a valued partner in both product development and manufacturing, and I highly recommend CMB as a battery pack supplier to any potential customers.
DAVID BELL
Pioneering Transparency in Battery Manufacturing
At CM Batteries, transparency is a priority at every stage of our manufacturing process, ensuring that customers receive high-quality, long-lasting, and custom-designed battery solutions. As the demand for open, accountable information grows, we empower our customers with clear and accurate insights into every aspect of our process—from advanced battery pack technology and custom design to prototype development, quality control, materials management, and streamlined delivery.
We uphold the highest moral standards to ensure that our commitment to sustainable and responsible production is evident at every step. By sharing our processes and practices openly, we build trust, meet high product standards, and strengthen the bond with our valued customers.
Our Sustainability Commitment
Our mission is creating reliable and long-lasting custom batteries.
We're committed to making a positive impact by embedding core values into our daily practices, from reducing energy use and minimizing waste to enhancing worker livelihood and prioritizing recyclable materials. Our sustainable practices—from safe, eco-friendly chemistries to resource-efficient production—reflect our dedication to delivering quality battery solutions with minimal environmental impact.
Our Business Positioning
CMB specializes in engineering rugged, high-performance custom li ion battery packs built to thrive in the world's most demanding environments. We design and deliver custom battery packs that combine cutting-edge technology with military-grade durability, empowering industries—from heavy machinery and aerospace to emergency systems and outdoor tech—to operate reliably in extreme conditions. Our precision engineering, rigorous testing protocols, and collaborative partnerships ensure your equipment won’t just survive, but excel, even under intense heat, vibration, moisture, or pressure. At CMB, we don’t just power devices—we enable innovation where failure isn’t an option.

Get help finding and using batteries at CM Batteries.com
Battery Pack Solution Guide
We’ll guide you in quickly choosing a custom battery pack tailored to your specific needs.
Battery Certification Support
We assist in designing custom battery packs that meet all required industry standards and certifications.
Battery Pack Technical Support
Learn how our quality control strategies ensure consistent reliability for your battery packs.
Engineering & Design Resources
Access the highest quality technical resources to support your projects and custom battery designs.
We’re ready to craft a battery pack that suits you and your device’s exact needs.
Our Mission
To energize products and people with our high-quality batteries and moral-driven actions
CMB specializes in engineering rugged, high-performance custom Li-ion battery packs built to thrive in the world’s most demanding environments. We design and deliver custom battery packs that combine cutting-edge technology with military-grade durability, empowering industries—from heavy machinery and aerospace to emergency systems and outdoor tech—to operate reliably in extreme conditions.
Our precision engineering, rigorous testing protocols, and collaborative partnerships ensure your equipment won’t just survive, but excel, even under intense heat, vibration, moisture, or pressure. At CMB, we don’t just power devices—we enable innovation where failure isn’t an option.
What Drive Us
We Believe in the Pursuit of Doing Good
Our values have guided us for years and will continue to represent our strategy for long-term growth and sustainable development.

Proactivity


Collaboration


Quality


Transparency

Our Team
Meet The People At The Center Of All That CMB Does.
Our dedicated employees are at the core of everything that CMB produces. They’re behind the high quality products we create and CMB’s successes as a whole.
Testimonials
What Our Clients Are Saying About CMB

We are an electric surfboard company and have been working with CM Batteries for over five years. As a specialist supplier of custom battery packs, CM Batteries has in my mind gone above and beyond in terms of customer service. Because of the specific nature of our products, the waterproofing and long-lasting functionality of the batteries must be of an extremely high standard. I was pleased that Cherry was able to communicate with me in a way that completely understood my needs and helped me to address my concerns about the quality of the batteries.
JHON REEVE

I would like to congratulate CMB as one of Active’s most trusted lithium battery manufacturer and business partners in China, CMB has been the sole supplier of smart Lithium-Ion battery for our Arrow Smart-Kart for children, and we are very pleaesed with the service CMB has provided since we established our supply-chain partnership almost four years ago. What sets CMB apart is your team’s relentless pursuit of customer satisfaction through quality, service and honesty. We regard CMB as a valued partner in both product development and manufacturing, and I highly recommend CMB as a battery pack supplier to any potential customers.
DAVID BELL
Pioneering Transparency in Battery Manufacturing
At CM Batteries, transparency is a priority at every stage of our manufacturing process, ensuring that customers receive high-quality, long-lasting, and custom-designed battery solutions. As the demand for open, accountable information grows, we empower our customers with clear and accurate insights into every aspect of our process—from advanced battery pack technology and custom design to prototype development, quality control, materials management, and streamlined delivery.
We uphold the highest moral standards to ensure that our commitment to sustainable and responsible production is evident at every step. By sharing our processes and practices openly, we build trust, meet high product standards, and strengthen the bond with our valued customers.
Our Sustainability Commitment
Our mission is creating reliable and long-lasting custom batteries.
We're committed to making a positive impact by embedding core values into our daily practices, from reducing energy use and minimizing waste to enhancing worker livelihood and prioritizing recyclable materials. Our sustainable practices—from safe, eco-friendly chemistries to resource-efficient production—reflect our dedication to delivering quality battery solutions with minimal environmental impact.
Our Business Positioning
CMB specializes in engineering rugged, high-performance custom li ion battery packs built to thrive in the world's most demanding environments. We design and deliver custom battery packs that combine cutting-edge technology with military-grade durability, empowering industries—from heavy machinery and aerospace to emergency systems and outdoor tech—to operate reliably in extreme conditions. Our precision engineering, rigorous testing protocols, and collaborative partnerships ensure your equipment won’t just survive, but excel, even under intense heat, vibration, moisture, or pressure. At CMB, we don’t just power devices—we enable innovation where failure isn’t an option.

Get help finding and using batteries at CM Batteries.com
Battery Pack Solution Guide
We’ll guide you in quickly choosing a custom battery pack tailored to your specific needs.
Battery Certification Support
We assist in designing custom battery packs that meet all required industry standards and certifications.
Battery Pack Technical Support
Learn how our quality control strategies ensure consistent reliability for your battery packs.
Engineering & Design Resources
Access the highest quality technical resources to support your projects and custom battery designs.
We’re ready to craft a battery pack that suits you and your device’s exact needs.
Our Mission
To energize products and people with our high-quality batteries and moral-driven actions
CMB specializes in engineering rugged, high-performance custom Li-ion battery packs built to thrive in the world’s most demanding environments. We design and deliver custom battery packs that combine cutting-edge technology with military-grade durability, empowering industries—from heavy machinery and aerospace to emergency systems and outdoor tech—to operate reliably in extreme conditions.
Our precision engineering, rigorous testing protocols, and collaborative partnerships ensure your equipment won’t just survive, but excel, even under intense heat, vibration, moisture, or pressure. At CMB, we don’t just power devices—we enable innovation where failure isn’t an option.
What Drive Us
We Believe in the Pursuit of Doing Good
Our values have guided us for years and will continue to represent our strategy for long-term growth and sustainable development.

Proactivity


Collaboration


Quality


Transparency

Our Team
Meet The People At The Center Of All That CMB Does.
Our dedicated employees are at the core of everything that CMB produces. They’re behind the high quality products we create and CMB’s successes as a whole.
Testimonials
What Our Clients Are Saying About CMB

We are an electric surfboard company and have been working with CM Batteries for over five years. As a specialist supplier of custom battery packs, CM Batteries has in my mind gone above and beyond in terms of customer service. Because of the specific nature of our products, the waterproofing and long-lasting functionality of the batteries must be of an extremely high standard. I was pleased that Cherry was able to communicate with me in a way that completely understood my needs and helped me to address my concerns about the quality of the batteries.
JHON REEVE

I would like to congratulate CMB as one of Active’s most trusted lithium battery manufacturer and business partners in China, CMB has been the sole supplier of smart Lithium-Ion battery for our Arrow Smart-Kart for children, and we are very pleaesed with the service CMB has provided since we established our supply-chain partnership almost four years ago. What sets CMB apart is your team’s relentless pursuit of customer satisfaction through quality, service and honesty. We regard CMB as a valued partner in both product development and manufacturing, and I highly recommend CMB as a battery pack supplier to any potential customers.
DAVID BELL
Pioneering Transparency in Battery Manufacturing
At CM Batteries, transparency is a priority at every stage of our manufacturing process, ensuring that customers receive high-quality, long-lasting, and custom-designed battery solutions. As the demand for open, accountable information grows, we empower our customers with clear and accurate insights into every aspect of our process—from advanced battery pack technology and custom design to prototype development, quality control, materials management, and streamlined delivery.
We uphold the highest moral standards to ensure that our commitment to sustainable and responsible production is evident at every step. By sharing our processes and practices openly, we build trust, meet high product standards, and strengthen the bond with our valued customers.
Our Sustainability Commitment
Our mission is creating reliable and long-lasting custom batteries.
We're committed to making a positive impact by embedding core values into our daily practices, from reducing energy use and minimizing waste to enhancing worker livelihood and prioritizing recyclable materials. Our sustainable practices—from safe, eco-friendly chemistries to resource-efficient production—reflect our dedication to delivering quality battery solutions with minimal environmental impact.
Our Business Positioning
CMB specializes in engineering rugged, high-performance custom li ion battery packs built to thrive in the world's most demanding environments. We design and deliver custom battery packs that combine cutting-edge technology with military-grade durability, empowering industries—from heavy machinery and aerospace to emergency systems and outdoor tech—to operate reliably in extreme conditions. Our precision engineering, rigorous testing protocols, and collaborative partnerships ensure your equipment won’t just survive, but excel, even under intense heat, vibration, moisture, or pressure. At CMB, we don’t just power devices—we enable innovation where failure isn’t an option.

Get help finding and using batteries at CM Batteries.com
Battery Pack Solution Guide
We’ll guide you in quickly choosing a custom battery pack tailored to your specific needs.
Battery Certification Support
We assist in designing custom battery packs that meet all required industry standards and certifications.
Battery Pack Technical Support
Learn how our quality control strategies ensure consistent reliability for your battery packs.
Engineering & Design Resources
Access the highest quality technical resources to support your projects and custom battery designs.