Why We Should Choose Custom Battery Packs?
Standard batteries may seem convenient at first, but as products get bigger, they often come with hidden costs like fewer design options, less consistent performance, shorter life spans, and repeated problems with certification.
Mature products rarely rely on generic batteries solutions for critical functions. If the device has clear performance goals, limited room, or difficult working conditions, standard batteries are often a short-term solution.
A custom battery pack integrates cell choice, structure design, and smart management into one battery pack solution. This way, the battery pack system can help your product reach its goals instead of getting in the way of them. Building in dependability and consistency from the beginning is more feasible and cost-effective in the long run.
Custom Lithium-Ion Battery Pack Solutions for Your Device
No matter what your project needs in terms of working conditions, cell chemistry, or form factor, our engineering team designs battery pack systems that work well, are safe, and can be used for a long time.
Custom Battery Packs by Application Features
Custom Battery Packs by Cell Chemistry
Custom Battery Packs by Cell Size & Format
Custom Built Battery Packs for Diverse Applications
Why Choose CMB As Your Custom Battery Pack Manufacturer？
Driven by a Top-Tier CTO & 5 Specialized Engineers: 800+ Projects Delivered Since 2014
Our engineering team is led by a CTO with 16+ years at CATL, BYD, and BAK. This top-tier expertise drives every project. With 5 specialized engineers, we integrate design, testing, and QC to solve your toughest power challenges.
We don’t just assemble — we engineer with precision. Using CAD, SolidWorks, and electrical design tools, we create custom battery architectures for IP67/IP68 water resistant, explosion-proof housings, and heat management. To save you time, we use AI-assisted analysis and simulation to speed up validation and reduce errors. This tech-first approach, backed by 800+ successful projects, ensures every battery is built for safety and performance.
Smart BMS with Multi-Protocol Communication
CMB develops customized BMS solutions tailored to each application, enabling precise, real-time monitoring of cell voltage, temperature, and SOC at the cell level.
Our Smart BMS supports multiple communication protocols, including TCP, UART, CAN (250k–1Mbps), RS485, RS232, and Bluetooth, ensuring seamless integration with host systems, controllers, and cloud platforms.
Built with reputable MOSFETs and ICs from RICOH, Seiko, TI, and BQ, each BMS is engineered for stable protection, accurate data transmission, and long-term reliability—keeping your custom battery pack operating within the safest and most efficient parameters at all times.
Tier-1 Cell Selection for Custom Battery Pack Design
We ensure quality by controlling every part of the battery pack. We have direct and stable supply chains with top-tier cell brands like CATL, BYD, Samsung, Panasonic, and EVE. We guarantee 100% original, Grade-A cells with full tracking records.
Beyond cells, we strictly check every accessory. We use UL-certified wires, high-quality connectors, and precision-made housings to ensure the whole pack is safe and durable. By choosing the right battery type (Li-ion, LiFePO4, or Li-Polymer) and matching it with high-end hardware, we ensure your product works perfectly with a long service life.
Battery Pack Certification for Global Markets
Navigating international regulations is seamless with CMB. Our factory is ISO 9001:2015 certified, and we provide comprehensive support for obtaining UL, CE, UN38.3, IEC62133, and RoHS certifications. Our quality control isn’t a final step—it’s a continuous process, culminating in 100% EOL (End-of-Line) testing including vibration, drop, and thermal shock tests to ensure zero-defect delivery.
100% Traceable IQC, IPQC, and OQC Workflows.
As a battery pack manufacturer, CM Batteries focuses on manufacturing discipline and process transparency to ensure consistent performance at scale.
Every production stage is managed through clearly defined and openly shared quality control processes, including IQC, IPQC, and OQC, along with controlled temperature- and humidity-managed storage and protective packaging standards.
To ensure full alignment before mass delivery, custom battery samples are provided with each batch order, allowing customers to clearly evaluate build quality, performance consistency, and compliance expectations in advance.
Lithium-ion battery pack manufacturing process includes separate cell sorting, assembly, and insulation stages to ensure high performance, safety, and longevity for all of our custom rechargeable battery packs.
From Concept to Sample in 14 Days: Your 24/7 Engineering Partner.
Whether you are in the early design phase or ready for production, we are here to help. Once your requirements are confirmed, we can deliver functional prototypes in just 2 weeks to keep your testing and validation on track. To eliminate time-zone delays, our technical team is available 24/7 for consultations, providing the expert answers your engineers need, exactly when they need them.
From your first 3D design draft to full-scale mass production, a dedicated project manager will guide you through every step with transparent, real-time updates.
