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Four small green circuit boards with dual USB ports and battery solder pads

GCON

GCON 18650 Charging Board Dual USB 5V 2.4A 4pcs

SKU CH-WQG6-3B0XM

Charges two devices at 5V 2.4A from 18650 cells with overcharge, overdischarge and short-circuit protection

  • Charge two devices at 5V 2.4A simultaneously
  • Built-in overcharge, overdischarge and short-circuit protection
  • Supports three cable types for iPhone and Android
  • Compact 6.5 * 2.5 * 0.1cm board fits tight enclosures
  • Pack of four modules for multi-bay power bank builds

DIY Power Bank Module for 18650 Cells

This pack provides four compact charging boards that turn 18650 lithium cells into a USB power source. Each module fits hobbyists and repair technicians building custom battery packs or replacing worn power-bank internals.

Upgrade from Single-Cell or Unprotected Boards

The board adds over-charge, over-discharge and short-circuit protection that bare cells lack. Dual USB outputs deliver 5V at 2.4A constant current, so the jump is worth it when you need simultaneous charging for phone and tablet from one pack.

Check Battery Polarity and Thermal Limits

Verify the cell positive terminal connects to B+ and negative to B- before soldering, as reversed polarity destroys the module. Ensure your enclosure keeps the board within the stated working temperature range and that continuous charge or draw stays within the 1.5A and 2.4A limits.

Highlights

  • Charge two devices at 5V 2.4A simultaneously
  • Built-in overcharge, overdischarge and short-circuit protection
  • Supports three cable types for iPhone and Android
  • Compact 6.5 * 2.5 * 0.1cm board fits tight enclosures
  • Pack of four modules for multi-bay power bank builds

Specifications

No published specifications for this item yet.

Questions about this item

What size enclosure does the 6.5 × 2.5 cm board need?

The board measures 6.5 by 2.5 cm and is 0.1 cm thick, so any case with at least that much flat space and room for two USB ports will fit.

Which step during wiring causes the board to burn out?

Connecting the battery backwards — positive must go to B+ and negative to B- — so verify polarity with a multimeter before soldering.

When should I replace the 18650 cells used with this board?

Swap cells once they no longer hold a useful charge or if the board’s over-discharge protection cuts power unusually early during use.

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