Atuomower Battery Replacement Supplier since 2014
Help you use high quality, safe lithium batteries with affordable price to win your customers’ more support.


Help you use high quality, safe lithium batteries with affordable price to win your customers’ more support.


18.5V 4400mah 5S4P Lithium ion Battery Pack

18.5V 2600Ah Lithium ion Battery Pack

18.5V 3200mAh Lithium ion Battery Pack

18.5V 4400mah 5S4P Lithium ion Battery Pack

18.5V 2600Ah Lithium ion Battery Pack

18.5V 3200mAh Lithium ion Battery Pack

18.5V 4400mah 5S4P Lithium ion Battery Pack

18.5V 2600Ah Lithium ion Battery Pack

18.5V 3200mAh Lithium ion Battery Pack

Batterea.com presents of ShenZhen Promax Technology Co., ltd, was founded in 2014, with office in Shenzhen and factory in Dongguan. We are a professional manufacturer of Li-ion replacement batteries and custom li-ion batteries with 10+ years’ experience.
We provide ODM /OEM service, including LiFePo4 battery replacement for lead acid battery and Solar Energy Storage Battery.
Your Partner in Powering Innovation: Our Approach to Custom Battery Solutions

Provide Battery ODM service from drawing to finished batteries.

Customize all types Work closely with the customer to design a custom lithium-ion battery that meets their exact specifications.

Assemble the custom battery packs using the selected lithium-ion cells and other necessary components such as battery management systems (BMS), connectors, casing materials, and thermal management solutions.

Offer battery with UN38.3 certified for safe transportation.




1. After the samples and battery specification are confirmed, we will start mass production soon after receiving the customer order and deposit.
2. Evaluate supplier, and test the quality of cell and PCM samples, till samples are approved.
3. Buy all the materials from the qualified supplier.
4. Spot-check cells capacity and fully check the voltage and internal resistance of cells before mass production.

5. Start mass production.
6. Fully check the battery quality during mass production, called IPQC.
7. After batteries are finished, fully check their performance, such as appearance, voltage, working current, over-working current, internal resistance etc. For the multiple battery pack, we add the life cycle testing before shipment.
8. Package and shipment.
We operate with honesty and transparency in all our dealings
“Do you need a battery that can deliver high power output consistently?”
We continuously push the boundaries of lithium battery technology.
“Are you frustrated by the short lifespan and frequent replacements of traditional batteries?”
“Do you require a battery with a wide operating voltage or temperature range?”
We listen to your needs and tailor solutions to your goals.
Custom voltage, capacity, and form factor, tailored BMS solutions for specific application requirements. Wide range of connectors, wiring, and enclosure options.



Send us a message if you have any questions or request a quote. Our experts will give you a reply within 24 hours and help you select the right valve you want.
Our team will reply you within 24 hours once receving your message.

Note: Your email information will be kept strictly confidential.