Custom Lithium Battery Products for OEM/ODM Projects
THOR Power provides factory-direct custom battery solutions, including custom LiPo pouch batteries, LiFePO4 / LFP battery packs, 18650 / 21700 cylindrical battery packs, and OEM/ODM solutions for special project requirements.
Battery Materials, Structure & Best-Fit Applications
Understand the key differences between LiPo pouch batteries, LiFePO4 / LFP battery packs, 18650 / 21700 cylindrical cell packs and OEM/ODM battery solutions before selecting the right battery direction for your device.
| Product Type | Material / Cell Structure | Key Characteristics | Best-Fit Applications |
|---|---|---|---|
| Custom LiPo Batteries Flexible pouch cells | LiPo pouch cells use gel-like or polymer-based electrolytes with little free-flowing liquid. Their tightly laminated electrode and separator structure helps preserve high energy density while enabling ultra-thin, curved or irregular cell designs with reduced leakage risk. | Ultra-thin, lightweight and highly shape-flexible. Ideal for compact or irregular internal spaces, with near-arbitrary customization in thickness, width, length and overall form, plus connector, wire and PCM design support. | Wearables, GPS trackers, IoT devices, beauty devices, portable medical devices, RC models, drones and compact electronics. |
| Lithium-ion Battery Packs LiFePO4 / LFP focused packs | Mainly LiFePO4 / LFP cells for safety-focused battery packs. Other lithium-ion cell systems can also be selected based on capacity, discharge, size or cost requirements, with BMS, housing, wiring and charging/discharging protection. | Large-capacity, highly reliable and safety-focused. Built around LiFePO4 / LFP chemistry for excellent thermal stability, ultra-long cycle life, stable power output and dependable BMS protection in energy storage and equipment power applications. | Home backup power, portable power stations, solar storage, emergency power, industrial devices, security equipment, robotics and smart equipment. |
| 18650 / 21700 Battery Packs Cylindrical cell packs | Standard cylindrical lithium-ion cells with metal casing. Cell chemistry can be selected from mature systems such as NCM, NCA or LFP depending on energy density, discharge performance and safety requirements. | Steel-cased cylindrical cells offer strong mechanical strength, high safety performance and reliable continuous high-rate discharge. Mature cell consistency and flexible series-parallel assembly support durable products and stable high-current output. | Power tools, lighting products, security devices, smart home products, portable equipment and industrial battery packs. |
| OEM/ODM Battery Solutions Special project needs | Not limited to one battery chemistry or cell format. Cell type, material system, pack structure, PCM/BMS, connector, wire, housing, label and packaging are selected based on project requirements. | Project-based solution design for special voltage, capacity, structure, safety, certification and production requirements when standard battery options cannot fully match the product. | New device development, private label projects, battery replacement projects, custom rechargeable systems and long-term OEM/ODM supply. |
There is no single best battery for every product. The right solution balances material, structure, safety, capacity, current, certification, cost and long-term supply stability.
Our Battery Product Categories
Explore THOR Power’s four main custom battery product directions, including LiPo pouch batteries, LiFePO4 / LFP packs, 18650 / 21700 cylindrical packs, and OEM/ODM solutions for special project needs.
Custom LiPo Batteries
Thin, lightweight and flexible-size lithium polymer pouch batteries for compact devices, wearables, GPS trackers, IoT devices, RC models, drones and portable electronics.
- Custom size and thickness
- Lightweight pouch cell design
- Connector, wire and PCM support
Lithium-ion Battery Packs
LiFePO4 / LFP-focused lithium-ion battery packs for applications requiring high safety, long cycle life, stable output and reliable BMS protection.
- High safety and thermal stability
- Long cycle life for repeated use
- For storage and equipment power
18650 / 21700 Battery Packs
Standard cylindrical lithium battery packs using 18650 or 21700 cells, suitable for durable rechargeable products, power tools, lighting, security devices and portable equipment.
- Mature cylindrical cell structure
- Flexible series-parallel assembly
- Good consistency for production
OEM/ODM Battery Solutions
Project-based custom battery development for special voltage, capacity, structure, connector, wire, PCM/BMS, label, packaging and long-term supply requirements.
- New device development support
- Private label and replacement projects
- Long-term custom supply
Factory-Direct Battery Product Support
THOR Power supports global OEM/ODM customers with factory-direct manufacturing, professional custom battery development, quality-focused production control and long-term supply support.
By combining factory-direct manufacturing with an experienced custom battery team, we help customers reduce unnecessary sourcing layers, improve project efficiency and build more cost-effective, reliable and long-term battery supply.
Factory-Direct Manufacturing
Direct manufacturing support from cell selection, pack assembly and production follow-up.
Fast Sample Development
Sample support for custom size, voltage, capacity, connector, wire and protection design.
Quality Control Before Shipment
Capacity, voltage, internal resistance, appearance and protection function checks before delivery.
Battery Testing Support
Support for performance review, charging/discharging tests and project-based battery evaluation.
UN38.3 / MSDS Document Support
Shipping document support based on battery model, transportation method and project requirements.
Long-Term Supply Support
Stable production follow-up for repeat orders, private label projects and long-term OEM/ODM supply.
Custom Battery Quality, Safety & Production FAQ
Answers to common questions about lithium battery quality control, capacity accuracy, safety testing, cycle life, cell consistency, and custom battery production.
How does THOR Power control battery capacity consistency?
Battery capacity consistency is controlled through electrode coating uniformity, formation, aging, capacity grading, internal resistance testing, and cell matching before pack assembly. These steps help reduce capacity deviation and support more stable battery performance in custom lithium battery projects.
How do you make sure the battery capacity is accurate?
Battery capacity is verified through charge and discharge testing under defined test conditions. THOR Power checks capacity, voltage, internal resistance, and discharge performance according to project requirements before confirming samples or batch production.
What production processes have the biggest impact on battery safety?
Battery safety is strongly affected by electrode coating quality, burr control, stacking accuracy, electrolyte filling, formation control, aging, and final pack testing. These processes influence internal resistance, heat distribution, separator coverage, self-discharge behavior, and long-term reliability.
How do you control battery cycle life?
Cycle life is influenced by material selection, coating uniformity, electrolyte wetting, formation quality, internal resistance consistency, charging conditions, and application load. THOR Power reviews battery structure, capacity, discharge requirement, PCM/BMS protection, and testing conditions to support stable cycle performance.
How do you reduce safety risks such as short circuit, overcharge, or over-discharge?
Safety risk control includes cell manufacturing quality control, insulation protection, polarity checking, PCM/BMS protection design, overcharge protection, over-discharge protection, overcurrent protection, short-circuit protection, and final electrical testing before delivery.
How do you ensure consistency from samples to mass production?
Sample-to-mass-production consistency depends on confirmed battery specifications, stable cell selection, controlled pack structure, connector and wire standards, PCM/BMS configuration, production process control, and final inspection criteria. THOR Power confirms key project parameters before batch production to reduce variation.
What tests are usually performed before battery delivery?
Typical checks include voltage testing, capacity testing, internal resistance testing, polarity checking, connector and wire inspection, PCM/BMS function testing, appearance inspection, label checking, and packing information review according to project requirements.
Can you support UN38.3, MSDS, and shipping documents for lithium batteries?
We can support UN38.3, MSDS, and related shipping documents according to the battery model and transportation requirements. For export preparation, we also help review product labels, packing information, and shipping document needs based on the project.
Need a Reliable Custom Battery for Your Product?
Share your battery requirements so our team can review the suitable custom lithium battery solution for your application.
- Battery size, voltage, and capacity
- Application and discharge requirement
- Connector, wire length, and polarity
- PCM/BMS protection needs
- Quantity and documentation requirements