Battery Pack Manufacturer

  • Our custom battery packs are manufactured for various applications in the medical, sports equipment, and portable devices industries.
  • Our portable energy solutions optimize performance, size, working life, and cost, giving our customers a unique competitive edge.
  • Our R & D team owns 100+ battery solutions design experience
  • ISO Standard Working Environment to Guarantee All Packs Same Performance

Our Service Key Figures

  • TLH Custom battery Experiences 17 + Years In the
  • TLH Custom battery collaborating partners 500 + Collaboration
  • TLH Custom battery Online Service 24 Hours Online
  • TLH Custom battery Pack Solution 1 Day Battery Packs
  • Custom battery Experiences 2 Weeks Received

Full-Service lithium ion battery pack suppliers

Battery Pack for Your Case

Standard battery pack.jpg
The standard battery pack solution no development cost and fast lead time.
Standard smart battery pack.jpg
The standard smart battery pack with UART and CANBUS communication protocol. Slightly battery technology change to meet your request.

Strict Quality Control For Your Battery Pack

  • Adopt an auto cell sorting machine and auto welding machine to ensure quality and efficiency.
  • Being ISO 9001:2015 certified ensures our battery packs are consistently manufactured to high standards and rigorously tested to surpass your expectations.
  • Our engineers and QC will check the waterproof function and communication function more than 5 times, and the rest will be fully checked 100%.


The China’s Leading Manufacturer

  • 15 years Experience in Custom Solutions
  • Over 500 Successful Cases
  • 100% After-Sales Support


  • All Battery cells will pass rigorous testing
  • All Battery Packs are Certified and are compliant with regulatory and safety requirements
  • Cells of Samsung, Sony, LG, and Panasonic are used widely for battery packs.


  • Custom assembly design and engineering assistance
  • Quick turn-around on battery assemblies(15-30Days)
  • Packaging According to Hazardous Materials Handling policy


  • We Make Battery packs with updated battery cells
  • Consistent, reliable, top-performance cells from the industry’s highest quality suppliers.
  • Tested and proven design

Safety Regulations

Getting Safety certifications for Lithium battery packs now become a compulsory step. We will help you to get all the necessary certificates, some of the commonly known ones are listed below:
UN 38.3   IEC 62133    UL 2054   MSDS

FAQ Guide

please consult our customer service team if there is confusion, or simply pick up your phone and we can talk to our li-ion battery Design Project.

1. How do you define the capacity of the OEM battery pack?

This is the amount of electricity defined as the active material in the battery which can participate in the reaction of electrochemical.

This is known as the charge a battery can hold after the charging.

2. How do you define the design capacity of an OEM battery pack?
It refers to the active material present in the battery, which is used to calculate the capacity of the battery from the electrochemical theory known as design capacity.
3. Can you connect two OEM battery packs having different capacities, performance, and made?
No, this will cause an imbalance in the battery packs.
4. What is the engineering support from TLH for OEM Battery Pack?
Our designing chief, with more than a decade of involvement with equipment and programming BMS planning, drives the designing group. Our design help likewise has skill in planning smart and savvy Battery Management systems. These battery frameworks are accompanied by correspondence conventions like CANBus, UART, or SMBus.
5. How will OEM battery packs help you accelerate your renewable energy businesses?

he world is moving to renewable energy resources, and if you are an organization of renewable energy, then we are the one you are looking for.

We appreciate and motivate such businesses, and we cooperate with such businesses to provide them with the best rates and facilities to promote green energy.

6. What is the difference between Liquid and solid lithium-ion OEM battery packs?
7. Why does the battery charging heat occur in OEM battery packs?
We have equipped our operation system with un 38.3 ,IEC 62133, UL 2054, and ISO 9001.
These tests enable your battery to withstand physical and mechanical damages.
These are the international standards tests that certify safe travel and usage of Li-ion battery packs worldwide.
8. What are the maintenance needs for the OEM battery pack?
development time for custom battery packs solution
9. Are TLH OEM battery packs brand new?
This can lead to a violent incident, and this can be prevented by using a heat detector.
10. What is the standard lifetime of your OEM battery pack?
Numerous items utilize Li-ion batteries, such as electric vehicles, electric bicycles, and vapes.
Li-ion battery packs are available on customized options too.
11. What is the Development Time for Your Battery Pack?
Numerous items utilize Li-ion batteries, such as electric vehicles, electric bicycles, and vapes.
Li-ion battery packs are available on customized options too.
12. What Should I consider about the shipping of li ion battery pack?
Numerous items utilize Li-ion batteries, such as electric vehicles, electric bicycles, and vapes.
Li-ion battery packs are available on customized options too.