Coremax’s Areas of Expertise

Coremax specializes in rechargeable lithium-ion / lithium polymer battery cell and battery pack. Help customer design a variety of lithium battery options and solutions for demanding applications worldwide.

Our manufacturing capabilities enable us to build the most basic battery packs, to custom packs with specialized circuitry, connectors and housings. From low to high volume, we have the capability and industry expertise to meet the unique needs of all OEM’s as our experienced engineering team can design, develop, test and manufacture custom battery solutions for the specific needs of most applications.

Lithium-ion battery

A type of rechargeable battery in which lithium ions move from the negative electrode (anode) to the positive electrode (cathode) during discharge, and from the cathode to the anode during charge.

Advantage of Lithium-ion battery

Lithium-ion batteries are common in portable consumer electronics because of their high energy-to-weight ratios, lack of memory effect, and slow self-discharge when not in use.

Lithium Polymer (LiPo) Battery

The three primary functional components of a lithium-ion battery are the anode, cathode, and electrolyte, for which a variety of materials may be used.

The popular portable devices battery

Commercially, the most popular material for the anode is graphite. The cathode is generally one of three materials: a layered oxide (such as lithium cobalt oxide), one based on a polyanion (such as lithium iron phosphate), or a spinel (such as lithium manganese oxide), although materials such as TiS2 (titanium disulfide) originally were also used.

Lithium Iron Phosphate (LiFePO4) Battery

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LiFePo4 battery offers longer cycle life

LiFePo4 battery based technology possesses superior thermal and chemical stability which provides better safety characteristics than those of Lithium-ion technology made with other cathode materials.

Custom Li-ion battery charger

We provide custom-made lithium battery chargers to secure and enhance the performance and reliability of our battery packs.

The All-in-one suits

To charge a lithium battery in full, the charger has to conduct CC to CV mode. we design battery and charger so that both devices can have -handshake functions. They can communicate and deliver precise messages to users using LED lighting.

Coremax Other Services

Shipping Documents

UN38.3 Test Report
1.2m Drop Test Report
Identification and Classification Report for Marine Transport of Goods.
Identification and Classification Report for Air Transport of Goods.

Safety Certification of Goods


What does Coremax do


Offering customized battery solution according to optimal size, capacity, voltage, function, operating temperature range etc.Producing kinds of battery with PCM, PVC Shrink, Plastic case ,Connector etc.

Customized Battery Pack

  1. Cell Selection
  2. Protection circuit module
  3. Struction design
  4. Safety testing
  5. Prototype run
  6. Development & technical support

Li-ion battery protection circuit module

  • Over charge and discharge protection
  • Over current protection
  • Short circuit protection
  • Balancing feature
  • Thermal protection
  • Standard I2C,SMBUS,HDQ port can read and modify battery power information

Battery Cells–BMS Controller—Mechanicals—Communication—Tester–Safet regulation–Charger

cycle performance test

What Client’s Say

we make a 7.2v 18650 battery pack for our pos machine with coremax and this battery works great upto now.  They do perfectly job on produce the battery pack and help us save alots time on development.

Lucasgriffin, Nao Ni

I bought this battery pack and i would like to recommend it to every one interested in building a 18650 battery pack without knowledge of rechargeable lithium ion batteries. It is very convenient and the customer service is very reactive. I will say it in French “Bravo” for this work!

Let me say something. You have an amazing awesome support. They helped me on weekend. This is what I call an “extra mile” in customer relationship. So I gave 5 stars for the Jenny and if I could, I’d give 10 stars for support.

Gojcus, metal hunter

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