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Customized Lithium ion Battery Packs

BATTERY SOLUTION & MANUFACTURER

More than 8 years Battery packs Customized

Conduct more than 11 different strict quality tests for each batch of batteries.

Customized voltage, capacity, dimensions.

Dimensions / shape: According to your requirements.

GET A QUOTE TODAY

Professional & Reliable Power Solution and Battery Pack manufacturer for your Power Need !

If you have any questions you can send us a message and we will happily give you our expert advice today.

 COMPLY WITH UL, CE, FCC, PSE, KC,
BSMI, UN38, ROHS STANDARDS, ETC.

HOT PRODUCTS

Are you interested in building custom Lithium ion battery packsAll cells are guaranteed Grade A. All cells have optional protection, spot-welded tabbing, pack assembly, testing & reporting.

7.4v li-ion battery pack for bike lights
7.4v li-ion battery pack for bike lights
48v Lifepo4 Type Electric Bike Battery
48v Lifepo4 Type Electric Bike Battery
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36V Lithium Ion E-bike Battery Packs
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48v 26.1Ah E-bike Battery Packs
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72V li ion batteries E-scooter
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Silver-fish-E-Bike-battery
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3.7V 18650 Battery Packs NO.GBP002
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High Power Battery Packs NO.GBP004
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Electric Skateboard 4.4Ah Lithium Battery NO.GBP007
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Rechargeable Electric Bicycle Lithium Battery Pack
Flying Fish E-Bike Battery
Flying Fish E-Bike Battery

WHAT WE DO

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The World’s Leading Manufacturer Of Custom Lithium Ion 18650 Battery Packs.

Greatmax Founded in 2008, Specializing in Customized lithium ion battery pack in China.

Greatmax Battery is a most qualified manufacturer of lithium batteries in China, owing to experienced specialists and technicians in this field for over 10 years.

Accumulated storage and application data guides our constantly innovation of technologies and equipment, and guarantees long operating life.

Our main products are Customized 18650 li-ion battery pack, Lithium polymer battery pack, LiFePo4 Battery Pack.

Our batteries are mainly applied to Wireless Industry Device, Consumer Electronics, Ebike, Portable Energy Storage ,etc

Greatmax is ISO9001 certified and our batteries are approved by UL, CE, RoHs, UN and many other international standards.

Greatmax sticks to continuously refining and innovating, satisfying our customers by utmost service.

  • Medical battery packs
  • Industrial battery packs
  • Instrument battery packs
  • Electric bike battery packs
  • RC toys battery packs
  • And others

PROFESSIONAL & RELIABLE POWER SOLUTIONS

LITHIUM ION 18650 BATTERY PACKS MANUFACTURER

Battery type used in products: 18650/18500/26650/ li-ion battery and so on. 

The high quality Rechargeable Li-ion 18650 Battery packs that will outperform your expectation.

WHY CHOOSE US

COMPETITIVE PRICE

PROFESSIONAL

GREAT QUALITY

CUSTOMIZED PACKAGING

DELIVERY ON TIME

SHIPPING SERVICE

We are a battery manufacturer, more advantageous factory direct prices.

 8+ Years of experience in the battery industry with extensive knowledge. Quick analyze & design prototypes. 

The laboratory will conduct more than 11 different strict quality tests for batteries. 100% quality checks and full one year warranty.

Private labeling and packaging for either big or small customers. Start from 10,000 per order, customer can own your own brand name.

Advanced automated equipment and skilled workers can provide you with high performance battery packs in time.

We have cooperated with DHL, UPS and EMS for long time. please contact us if you have special requirements.

OUR FACTORY

Battery Cell Capacity and Volatge Match Test

Battery safety testing laboratory

Finished Battery Pack Testing

Battery Pack Workshop

Battery Workshop

Finished Battery Pack Warehouse

HOW TO CUSTOM YOUR BATTERY PACKS

  • Step 1.Defining your goals explicitly (with a spec sheet)

    If you’re building custom Lithium Ion 18650 Battery Packs, you’d better take a minute listing as many of the following specifications as you can. That will help to design on the aspects of rechargeable battery pack.

    1. What is your biggest worry concerning your custom 18650 battery pack project?
    2. What kind of environment does your battery pack work? (temperature, dust, water, radiation, vibration)

    Below shows a list of specifications that should be determined for your 18650 battery packs.

    Specification Norm. Min. Max. Priority 1-5 (1 highest) Notes
    A (ampere) output
    mAh (milliamp hour) output
    V (Voltage) output
    W (watt) output
    Total cost
    Charging time
    Weight
    Safety
    Form factor
    Special requirements

    Here is a link to a Google Forms template you can use.

  • Step 2. Problem solving and the configuration

    After we fletch out a specification sheet, the next step which deals with the following design and technical points:

    ▪ Configuration      ▪ Cell choice      Battery management system      

    Form factor         Charger            Special requirements

  • Step 3. Price of custom battery pack

    The price of custom 18650 battery packs is dependent on many variables. Costs are determined by:

    ▪ Cell cost                                      ▪ Special materials or components, unique features
    ▪ Testing and certification         ▪ Quality control requirements         ▪ Packing, shipping, customs

  • Step 4. Building sample 18650 battery pack

    After your specification sheet is laid out, your technical specifications are settled, and you know exactly what it will cost to produce, a sample is created.

  • Step 5. Full production

    Production may begin any time after designs are finalized and pro forma invoice is signed.

  • Step 6. Quality control & after-sales support

    Specialized quality control, UN certification, explosion, vibration, high-discharge tests, and more services are available at request.

Look at the battery factory

GET A QUOTE TODAY

Professional & Reliable Power Solution and Battery Pack manufacturer for your Power Need !

If you have any questions you can send us a message and we will happily give you our expert advice today.

TESTMONIALS

The 150Ah battery is fantastic! Really self supporting during the whole holiday. I want to change the battery of the electric bike of my woman. Also in LiFePO4 if possible. Soon I will see want is insite of the battery an what space there is for the new one. Maybe you can advise me when I am so far.

Henk Goeman, from Holland

I received the batteries today and could not be happier!  I will definitely do business with you guys in the future after this initial production run. I appreciate how easy it is to work with you and how great, safe and dependable your products have been during my testing. Take care over there! You guys are the best.

Casey, from America

We are using your batteries, and all seems OK, thank you. Our possible customer asked about a “double capacity” pack. We would nee to double the current (2 x 11,6 A), keeping the same nominal voltage (29,6 V). I assume that we need a 8s8p configuration.

Romano, from Italy 

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