Factory-Direct Custom Battery Solutions

Custom LiPo Batteries & Lithium-ion Battery Pack Solutions for OEM/ODM Projects

As a custom battery pack manufacturer, THOR Power delivers factory-direct LiPo pouch cells, lithium-ion packs, and LiFePO4 (LFP) solutions — from 18650 / 21700 to fully custom designs, with support for voltage, capacity, connectors, PCM/BMS, sample testing, and long-term OEM/ODM supply.

8+ Years Custom Project Focus
1,000+ Global Customers
70+ Countries Served
No MOQ Samples Test Before Bulk
UN38.3 MSDS Support
Dengzhou Xinju New Energy parent factory supporting THOR Power custom battery projects
Who We Are

Factory-Direct Custom Battery Solutions for Global OEM/ODM Projects

THOR Power is the global custom battery brand of Dengzhou Xinju New Energy (Henan) Co., Ltd., a China-based lithium battery manufacturer. To better support overseas OEM and ODM customers, we have established a dedicated technical and export team in Dongguan, providing factory-direct custom battery solutions with fast communication and hands-on project support.

From custom LiPo pouch batteries and 18650 / 21700 battery packs to LiFePO4 solutions for portable power stations, home energy storage and other backup power applications , we help product developers, device brands, distributors and industrial buyers move from prototype to mass production with clearer specifications, lower selection risk, faster sample testing and stable long-term supply.

Why “THOR”? In Norse mythology, Thor is the god of thunder — a symbol of raw power and unwavering reliability. That is the standard we hold every battery to, from the first sample to full-scale production.
Why Choose THOR Power

Built for Safer, More Reliable and Cost-Effective Custom Battery Projects

THOR Power supports OEM/ODM customers with factory-direct supply, engineering review, real capacity testing, sample development, and stable long-term custom battery manufacturing.

Reduce Battery Project Risk

Before sampling or mass production, our team helps review battery type, voltage, capacity, connector, PCM/BMS, load current, pack structure, and production feasibility.

Technical Review Before Selection
Real Capacity Verification
No MOQ
Free Initial Solution Design

Source Factory Supply

Reduce sourcing layers and improve cost control with direct custom battery manufacturing support.

Dedicated Custom Battery Team

Review battery type, voltage, capacity, connector, PCM/BMS, and structure before sample development.

Advanced Production Equipment

Advanced production equipment and skilled operators support reliable custom battery manufacturing.

Real Capacity & Long Runtime

Support capacity, voltage, internal resistance, and discharge performance testing.

Strict Cell-to-Pack Quality Control

Control key quality steps, including coating, electrolyte filling, formation, capacity check, and PCM/BMS testing.

Better Cost Efficiency

Reduce hidden project costs through early technical review, factory-direct supply, and stable production support.

Need a Safer and More Suitable Solution?

Send us your battery requirements. Our team will review and provide professional advice as soon as possible.

Talk to a Battery Engineer
Core Capabilities

What We Support

THOR Power supports custom LiPo and LiFePO4 battery solutions for compact devices, backup power, and OEM/ODM projects, covering size, voltage, capacity, connectors, PCM/BMS, samples, documents, and long-term supply.

Custom LiPo & LiFePO4 Solutions

Custom LiPo pouch batteries for compact devices and LiFePO4 packs for energy storage, backup power, and industrial use.

OEM/ODM Project Support

Battery selection, voltage review, sample testing, and batch production follow-up for custom OEM/ODM projects.

Fast Sample Development

Sample support to verify battery size, capacity, connector, PCM/BMS, and product compatibility faster.

No MOQ for Sample Testing

Flexible sample support before batch production and long-term supply planning.

Free Initial Battery Design Support

Initial review for battery size, voltage, capacity, connector, wire, protection circuit, and application needs.

Connector & PCM/BMS Customization

Connector, wire, polarity, PCM/BMS, NTC, balancing, cutoff, and current protection customization.

UN38.3 / MSDS Support

Shipping document support for lithium battery models and international transportation preparation.

Factory-Direct Long-Term Supply

Factory-direct production follow-up and stable supply for LiPo, lithium-ion, and LiFePO4 battery projects.

Product Categories

Custom Battery Products for OEM/ODM Projects

Explore factory-direct custom LiPo batteries, LiFePO4 packs, 18650 / 21700 packs, and special battery solutions for compact devices, energy storage, power tools, and long-term OEM/ODM supply.

Custom LiPo battery with connector for compact electronics, wearable devices, GPS trackers and portable medical devices

Custom LiPo Batteries

Thin lithium polymer batteries customized by size, capacity, connector, wire length, PCM, and label for compact electronic devices.

Thin 3.7V LiPo Custom Size Connector
View Custom LiPo Batteries
LiFePO4 lithium-ion battery pack for home energy storage, backup power and long-cycle rechargeable battery applications

Energy Storage & Backup Power Packs

Custom lithium-ion battery packs, mainly LiFePO4 (LFP), for home energy storage, portable power stations, industrial devices, and IoT monitoring systems, with custom voltage, capacity, protection, and pack structure support.

Battery Pack PCM/BMS Rechargeable
View Li-ion Battery Packs
Custom 18650 and 21700 lithium battery pack with label, connector and protection design for portable power applications

18650 / 21700 Battery Packs

Rechargeable 18650 and 21700 battery packs with cell selection, series-parallel design, welding, BMS protection, and pack assembly support.

18650 / 21700 Cells Pack Design Protection
View 18650 / 21700 Packs
Custom special lithium battery pack module for OEM and ODM rechargeable battery projects

Custom Special Battery Packs

Custom battery pack support for non-standard projects, including battery review, structure design, connector matching, PCM/BMS integration, sampling, and batch production.

Special Projects Sample Testing Long-Term Supply
View Custom Special Battery Packs
Not sure which battery type fits your project? Start with Custom Solutions
Core Battery Solutions

Choose the Right Battery Solution for Your Project

Different battery projects require different cell formats, power levels, protection designs, and pack structures. Use the guide below to choose the most suitable battery direction before requesting an engineering review.

Thin & Compact Battery Solutions

For Compact & Lightweight Devices

Choose custom LiPo batteries when your device has limited internal space, thin structure requirements, lightweight design needs, or a small connector and PCM layout.

Compact Size Flexible Shape Connector Matching
Explore Small Device Battery Applications
Lithium-ion Pack Solutions

For Backup Power & Energy Storage

Choose LiFePO4 / LFP battery packs when your project requires safer chemistry, longer cycle life, stable backup power, larger capacity, or 12V / 24V / 48V system design.

LiFePO4 Options Backup Power Smart BMS
Explore Backup Power Battery Applications
High-Load Cylindrical Packs

For High-Load Portable Equipment

Choose 18650 / 21700 cylindrical packs when your product needs higher discharge current, series-parallel cell design, stronger welding structure, and reliable BMS protection.

High Discharge Tool Power Pack Assembly
Explore Power Tool Battery Applications
Project-Based Custom Packs

For Non-Standard Battery Projects

Choose custom special battery packs when your project involves unusual structure, replacement battery development, private label supply, special connector layout, or sample-to-production support.

Special Structure Project Review Sample to Production
Explore Custom Battery Project Support
Custom Solutions / How We Work

From Battery Requirements to Quality-Controlled Supply

THOR Power helps OEM/ODM customers move from battery requirements to solution review, sample testing, quality inspection, and stable long-term supply.

01

Send Project Requirements

Share battery size, voltage, capacity, application, load current, connector, PCM/BMS, quantity, and certification needs.

Custom Size Connector Load Current
02

Solution & Safety Review

We review battery type, voltage platform, capacity, charging method, PCM/BMS protection, and project feasibility before sampling.

Safety Review PCM/BMS Voltage Platform
03

Sample Testing & Adjustment

Samples help verify battery size, connector position, charging compatibility, discharge performance, assembly fit, and runtime.

Sample Testing Prototype Fit Runtime Check
04

Quality Inspection Before Shipment

We check appearance, voltage, capacity, polarity, connector, protection function, packaging, and shipping documents before delivery.

Quality Control Capacity Check Document Check
05

Delivery & Long-Term Supply

We support production follow-up, delivery, repeat orders, and stable supply for LiPo, 18650 / 21700, lithium-ion, and LiFePO4 projects.

Delivery Follow-Up Long-Term Supply OEM/ODM Supply
Engineering Note Clear battery size, voltage, capacity, load current, connector, PCM/BMS, charging method, application, quantity, and delivery plan help improve review efficiency and reduce sample mistakes.
FAQ

Custom Battery FAQs

Answers to key questions about custom LiPo pouch batteries, lithium-ion battery packs, 18650 / 21700 battery packs, LiFePO4 energy storage batteries, portable power station battery capacity, PCM/BMS protection, connector customization, quality control, and shipping documentation.

1. How do you help reduce battery safety risks?

Battery safety starts from correct battery selection and engineering review, not only final inspection. THOR Power reviews battery size, voltage, capacity, cell structure, charging method, load current, connector layout, PCM/BMS protection, insulation, and application environment before sample development or mass production.

For custom LiPo pouch batteries, we focus on thickness, space fit, wire exit, PCM position, swelling risk, and device assembly safety. For lithium-ion, 18650 / 21700, and LiFePO4 battery packs, we also review BMS current limit, balancing, temperature protection, charging voltage, discharge current, and long-term operating conditions.

2. How do you control battery quality before shipment?

THOR Power controls quality across battery selection, cell matching, pack assembly, PCM/BMS verification, electrical testing, appearance inspection, packaging, and shipment review.

Before delivery, we can check voltage, capacity, polarity, connector position, wire length, insulation, protection function, charging and discharging behavior, packaging condition, and shipping documents. For energy storage, backup power, 18650 / 21700, and LiFePO4 battery pack projects, BMS protection, consistency, and long-term stability are especially important.

3. Are your battery capacity and runtime specifications accurate?

We understand that many customers worry about inflated capacity or unrealistic runtime claims. THOR Power reviews capacity based on battery model, cell structure, voltage platform, discharge current, cutoff voltage, and real application conditions.

A battery with the same mAh rating may perform differently depending on load current, temperature, BMS cutoff, internal resistance, connector resistance, and device power management. For important projects, sample testing is recommended to verify real runtime, charging compatibility, discharge performance, and product fit before batch production.

4. Can you customize batteries for limited space, special connectors, or PCM/BMS requirements?

Yes. THOR Power supports custom size, thickness, voltage, capacity, wire length, connector type, polarity, wire layout, label, packaging, PCM protection, and BMS configuration according to product design.

For compact LiPo battery projects, space, thickness, connector direction, and PCM position are often critical. For lithium-ion, 18650 / 21700, and LiFePO4 battery packs, BMS current limit, balancing, NTC temperature protection, charging voltage, discharge current, and housing fit should also be confirmed. These details help reduce wrong samples and improve project development efficiency.

5. Why do 18650 / 21700 battery packs need more than just voltage and capacity matching?

18650 / 21700 battery packs are often used for higher-load devices, longer runtime requirements, power tools, industrial equipment, outdoor devices, and rechargeable battery pack projects. But voltage and capacity alone are not enough to confirm whether the pack will work reliably.

A practical 18650 / 21700 battery pack design should also review cell discharge capability, series-parallel configuration, peak current, BMS current limit, welding structure, heat generation, connector resistance, wire gauge, housing space, and charging method. If these details are not matched correctly, the pack may shut down under load, heat up, lose runtime, or fail during sample testing.

THOR Power reviews 18650 / 21700 cell selection, pack structure, PCM/BMS protection, connector design, and real application load before recommending a custom battery pack direction for sampling or long-term OEM/ODM supply.

6. How do I choose the most cost-effective energy storage battery for my project?

The most cost-effective energy storage battery is not always the lowest-priced option. For backup power, portable energy systems, industrial standby power, or security power applications, the real cost should be judged by usable capacity, cycle life, BMS protection, safety performance, charging compatibility, voltage platform, and long-term supply stability.

LiFePO4 battery packs are often a better choice when the project needs long cycle life, stable standby performance, better thermal stability, and safer long-term operation. For 12V, 24V, 48V or other energy storage battery systems, THOR Power reviews load power, backup time, usable Wh, charging method, BMS current limit, housing space, connector interface, and expected service life before recommending a practical battery pack direction.

A cheaper battery may create higher total cost if it has poor cycle life, early capacity loss, weak BMS protection, unstable discharge performance, or repeated sample revisions. A cost-effective battery solution should balance price, safety, runtime, lifetime, and supply reliability.

7. How do I choose the right battery capacity for a portable power station or outdoor power supply?

The right capacity depends on device load power, target runtime, inverter efficiency, usable Wh, peak power, charging method, weight limit, housing space, and expected cycle life. For outdoor power supplies, customers should not select a battery only by the advertised Wh or Ah value.

A practical review should start from the real devices that need to be powered, such as lighting, communication equipment, tools, medical devices, security systems, or small appliances. The battery pack should then be matched with continuous power, peak power, backup time, voltage platform, BMS current limit, connector interface, and charging source.

LiFePO4 battery packs are often suitable for portable power stations and outdoor backup power when the project requires long cycle life, safer thermal performance, stable output, and long-term standby reliability. THOR Power can review your load power, runtime target, battery space, charging method, and supply quantity to recommend a practical and cost-effective battery pack direction.

8. What information should I send to get a fast and accurate custom battery quote?

To help us review your project quickly, please send battery size, voltage, capacity, application, target runtime, average current, peak current, charging method, connector type, wire length, PCM/BMS requirements, quantity, certification or shipping document needs, and any drawings or photos of the battery space.

For LiFePO4 energy storage, backup power, or outdoor power supply battery packs, please also provide system voltage, load power, backup time, charging source, installation space, communication needs if any, and expected cycle life. Clear project information helps THOR Power recommend a more accurate custom battery solution and reduce unnecessary sample revisions.

Still Not Sure Which Battery Fits Your Product?

Share your battery size, voltage, capacity, application, load current, connector, PCM/BMS, energy storage or backup power requirements, and sample testing needs. A THOR Power battery engineer will reply within 24 hours.