Battery packs and chargers · OEM / ODM manufacturer in Taiwan sales@chyifeng.com.tw+886-2-2903-0918
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CAPABILITIESBatteries

Battery packs, developed for your application.

Custom, smart, backup, NFC and e-bike battery families. Tell us what the pack must do; we work through the design with you.

Build a spec brief
Blue cylindrical battery pack with colored leads and a white connector
Wired cylindrical battery pack · label removed for display

01Product photographs

Explore the physical format.

Wired packs, a backup format and e-bike housings. Select a photograph for a closer look. Photographs show form and connection details; specifications are confirmed for your project.

Blue cylindrical battery pack with short colored leads and a white connector
Wired packWired cylindrical battery pack · label removed for display
Blue cylindrical battery pack with longer lead wires and a white connector
Long lead viewWired cylindrical pack, longer lead view · label removed for display
Green wrapped backup battery with red and black leads and a white connector
Backup formatBackup battery format · product photograph
Underside of a black e-bike battery housing with a carry handle and recessed mounting features
Housing undersideE-bike battery housing, underside · product photograph
Black e-bike battery housing with a recessed front shape and a charge indicator panel
Housing exampleE-bike battery housing example · product photograph
Black e-bike battery housing with a through carry handle and charge indicator panel
Housing with handleE-bike battery housing with handle · background-retouched product photograph

Explore lead-and-connector arrangements, compact backup formats and e-bike housings. Tell us which physical constraints matter in your application.

Smart battery and NFC requirements can be discussed alongside the pack envelope and connection. Final configuration, availability and supporting documentation are confirmed for your project.

Discuss your battery requirements

01Project configuration

Start with what your device needs.

These are development capabilities, not a fixed model catalogue. Specifications and documents are confirmed for your project.

01

Custom battery packs

A pack designed around your device and its requirements.

Discuss this configuration →

Useful details to share

  • Device envelope and mounting
  • Voltage, capacity or target runtime
  • Connector, contacts and protection requirements
Compact lead arrangement
Compact lead arrangement
Longer lead arrangement
Longer lead arrangement
02

Smart batteries

Battery packs with a fuel gauge to report charge level.

Discuss this configuration →

Useful details to share

  • How the device uses charge-level information
  • Runtime and operating conditions
  • Mechanical and electrical interface
03

Backup batteries

Small NiMH or lithium cells with leads for memory backup.

Discuss this configuration →

Useful details to share

  • Backup function and required duration
  • Space available for the cells
  • Lead length and connector requirements
Compact backup format
Compact backup format
04

NFC batteries

Discuss a battery pack with NFC for your device.

Discuss this configuration →

Useful details to share

  • Device and intended NFC use
  • Pack dimensions and interface
  • Project requirements to review with engineering
05

E-bike batteries

Battery-pack development for e-bike applications.

Discuss this configuration →

Useful details to share

  • System and installation requirements
  • Battery envelope and connection
  • Required standards and project documentation
Housing underside
Housing underside
Front housing detail
Front housing detail
Integrated carry handle
Integrated carry handle

02Connected engineering

The pack and its circuit belong in the same conversation.

Our in-house engineering team designs battery PCBs and charger PCBs. Bring the device requirements, drawings or an existing pack to the discussion.

Explore circuit design
Battery protection circuit with a PTC and two protection IC and MOSFET stages
Three-level protection circuit · redrawn from our battery PCB design

NEXTYour project

Have a drawing, a device or just a requirement?

Send what you know. Leave uncertain items open for the engineering discussion.

Send your specs