Custom Lithium Battery Pack Manufacturer

Why Buy From Us

Top Quality Cell

We own 10 cells production line and we have rich channel for Panasonic, Samsung, Sanyo Cell,from 18650 battery ,li-ion battery, lithium polymer battery, and lifepo4 battery, We’ll send you a list of questions in a professional way, so your device can work in great condition with affordable prices.

Small Order Acceptable

With Low MOQ, you can market test your business ideas before they come to mass production. DNK helps you to monitor and control your risks, we work together you as partner to meet new market trend for lithium battery.

OEM/ODM Acceptable

7 years OEM/ODM experience for more then 100 clients from US and almost all over Europe, We can design the lithium battery pack under your specifications and we will sign Non Disclosure Agreement with you if You feel important

Free Logistic Arrangement

We will arrange the shipment and all safety and customs document for you, all free of charges, Doc including MSDS, UL, CE,FCC,RoHS, we get lower shipping rates like 30% from DHL and UPS

1000+ Happy Customers

Quality is the Soul of our company, and we make only with brand new safe li-ion battery cell ever since our establishment, Take your time to check Our happy customers review with you.

Great Team

Passionate 10 sales team working closely with 6 Technician to offer fast email response in less then 2 hour or Real time skype or phone talking. All risks are controlled at the beginning during sample confirmation or when raw material comes.

Cooperation Process For Custom Battery Design


Please Contact us via phone or E-mail,we will get back with Custom Battery Design within 24 hours


We will try to find the Best Solution for your Custom Projects with Detailed Prices, Lead Time and Payment Details


We will Finish the Lithium ion Battery Samples in 3 Days (for most of the time), and Send for your Evaluation


For Custom Private Mould, we will Send a Demo Sample After Draft Samples approved and Right Before Mass Production.


If Samples Goes Well, You can Send us Deposit and We will start the Mass Production,You can send QC Staff During Production Or Finished.


We will find the Best Reliable Way to ship the Batteries to you, along with all Required Shipping Documents like MSDS, UN38.3, IEC62133.

We Are Different in

R&D Team make Custom Battery Design in 24 Hours, Fast and Accurate Custom Battery Design and Pricing on All Battery Packs is our pursuit for work

Battery Pack Samples Assembled and Tested in 3 Days, No Delay on Samples, “No Excuse, Just Do it” is our Mission

Mass Production in 20 Days, Yes, We can Deliver as fast as you want.

100% Refund if Mass Production Goes Wrong with Samples, If you are not satisfied with Our Batteries, We send back money along with shipping charges. We don’t Screw you, YOU ARE RISK FREE

Hassle Free After Sales Service, Hassle Free, Yes, Yes, In Any Case of Unsatisfactory/Dispute with Our Battery Packs, We put your interest to the Top Priority.

Proudly Happy Customers


Hi Eric

My Boss really appreciate that you can deliver goods on time every time, we are happy with our past 5 years working time.thank you Eric, you really did a good job

—Bob, JIN Sourcing

“Hey Jason

It’s Just a note to say thank you for your battery packs,as usual they all tested good, I even CC my friend Bob who is also dealing with battery biz, don’t shame on me, did i say shame on me, sorry about that, you just did a good job every time.

thank you and thank you so much.”

—Chris, You Name it Products

“I want to write a letter to let you know how satisfied we were with the service and the help that we got from you.

The Project comes from the government, and they don’t pay us before we send them with good product and on time delievery, but this is custom projects, and we are really worried that our money might gone into the air, but luckily, they all goes well.Our next project might be 15000pcs packs, and i hope it will be soon.”

—- Michael Roth, BCI Group