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

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01 / 07

Medical Device Batteries

Custom lithium battery packs for portable medical devices.

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01 / 05

Replacement Battery Packs

Custom lithium replacement packs for lead-acid batteries and light EVs.

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Overview of the Jetray battery pack production floor
Our factory

Inside Our Battery Pack Factory

Real photos from our Shenzhen facility: the assembly lines where packs are built, cell processing, the team behind every order, and the test center where each design is proven.

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Cell sorting and matching
Spot welding and assembly
BMS fitting and wiring
Charge, discharge and safety tests
01 · Production workshop

Where packs are assembled

Dedicated lines take each order from matched cells to finished, labelled packs.

02 · Processing

From cells to finished packs

Welding, wiring, insulation and housing, done step by step with checks between stations.

03 · Our team

The people who build your packs

Trained operators and engineers handle every stage, from first sample to batch production.

04 · Testing center

Proven before it ships

Capacity, protection and temperature tests on samples and production batches.

Custom lithium battery packs on a production line at Jetray

See it for yourself

Visit our factory in Shenzhen or ask for a live video tour. Send us a message and we will arrange a time.

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