Custom lithium battery packs for device makers · Made in Shenzhen, shipped worldwide

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Third-floor production area of the Jetray battery pack factory in Shenzhen
About us

About Jetray

Jetray designs and builds custom lithium battery packs in Shenzhen, China. We work with device makers, brands and distributors who need a pack made to their voltage, size, interface and certification needs.

15+Years in rechargeable power
200+Employees
20,000+m²Factory area
50+Countries and regions served
Inside Jetray

Real photos from our factory

Our factory is in Songgang Town, Bao’an District, Shenzhen. This is where your pack is matched, welded, assembled and tested.

Battery pack production floor on the third floor at Jetray
Production floor
Entrance of the Jetray factory building in Shenzhen
Our building in Songgang
Energy storage batteries in the Jetray showroom
Showroom
Battery pack assembly line D at Jetray
Assembly line
Battery test workshop at Jetray
Test workshop
Quality control area on the Jetray production floor
QC area
Battery pack production line A at Jetray
Production line
What we do

From requirement to repeatable product

We turn a device requirement into a working battery pack, and then into a repeatable product. That covers:

01

Design

Cell choice, layout, BMS, enclosure, connectors and communication.

Custom battery solutions
02

Sourcing

Cells and parts from established makers.

Cell selection
03

Build

Cell matching, spot welding, assembly and packing in our own factory.

04

Test

Checks on samples and finished packs, with reports for shipment.

Quality and certification
05

Delivery

Samples, batch production and worldwide shipping from Shenzhen.

We build to your drawing (OEM) or propose the design for you (ODM).OEM and ODM

Jetray engineers reviewing a battery pack designLithium cells and packs in trays ready for assemblyBattery packs being wired on the assembly line at JetrayEngineer testing a battery pack with a multimeter and test softwareFinished battery packs ready for shipmentDesign
How a pack is built

Six steps from cell to carton

Drag or use the arrows to follow a pack through our factory.

Lithium cells being sorted and matched at Jetray01

Cell matching

Cells are sorted by capacity and internal resistance, so a pack works as one unit.

Spot welding nickel strips on battery cells02

Spot welding

Nickel strips are welded to the cells to carry the current of your device.

Cells, BMS and wiring assembled inside a pack enclosure03

Assembly

Cells, BMS, wiring, insulation and enclosure are put together to the drawing.

Battery packs being checked on a test station at Jetray04

Testing and inspection

Each pack is checked before it leaves the line.

Battery packs being packed at Jetray05

Packaging

Labels, cartons and shipping documents are prepared, with your branding if you wish.

Battery pack test report and certification documents06

Certificates

UN38.3, IEC 62133 and MSDS documents are available for the model you buy.

Cylindrical lithium cells in a holder before pack assembly
Cells we work with

Cells from established makers

Li-ion cells

  • Panasonic
  • Samsung
  • LG
  • Molicel
  • Murata
  • EVE
  • BAK

LiFePO4 cells

  • EVE
  • Great Power
  • XingDong

Primary, coin and button cells

  • Panasonic
  • Maxell
  • Seiko
  • FDK

We pick the cell for your load and conditions, and tell you what we recommend and why.

Cell selection and sourcing
Boxed battery packs in cartons beside a production line at Jetray
Who we work with

Device makers, brands and distributors

Our customers are device makers, brands and distributors. We support private label, so a pack can carry your name and model number. We also supply in-stock items that ship without waiting. Custom battery packs usually take one to two months, and custom battery pack samples are charged.

Private labelYour name and model number on the pack
In stockItems that ship without waiting
1–2 monthsUsual time for custom battery packs
SamplesCustom pack samples are charged
What we stand for

Four things we hold to

01

Customer first

We listen, customize and work with you on the pack.

02

Quality

We do not trade safety or reliability for price.

03

Innovation

We keep improving materials, design and how we build.

04

Integrity

We tell you plainly what we can and cannot do, so the relationship lasts.

Jetray factory building in Songgang, Shenzhen
Our factory and location

Built in Shenzhen, shipped worldwide

Our factory is in Songgang Town, Bao’an District, Shenzhen, China. We ship to customers worldwide.

Songgang Town, Bao’an District, Shenzhen, ChinaShipping worldwide
See inside our factory
Production lines on the third floor of the Jetray factory
Battery products on display in the Jetray showroom
Jetray battery production floor

Have a battery project?

Send your requirements. Our engineers reply within 24 hours.

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