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Green circuit board with USB-C port and battery holder for Raspberry Pi Zero 2W

MCDODO

MCDODO X306 V1.5 5V UPS Expansion Board for Raspberry Pi Zero 2W

SKU CH-CTPG-CB8VB MPN X306

UPS expansion board adds 5.1 V 4000 mA battery backup to Raspberry Pi Zero 2W via USB-C power input

  • Product typeSingle Board Computers
  • UPS backup up to 5.1 V 4000 mA for Zero 2 W
  • Enhanced V1.5 battery holder eases swaps and improves reliability
  • USB-C 5 V 3 A input with optional 20 W adapter
  • Compatible case X306-C1 and C296 heatsink available
  • Supplied with board and four M2.5 × 5 mm screws

Board purpose and target user

The X306 V1.5 expansion board adds an uninterruptible power supply function to a Raspberry Pi Zero 2 W. It accepts a single-cell battery and delivers backup power through a USB Type-C input rated at 5 V 3 A. Makers building portable or always-on Zero 2 W projects gain a compact UPS without redesigning their power circuitry.

Who it suits and who it does not

The board is designed exclusively for the Raspberry Pi Zero 2 W; earlier Zero or Zero W models are not supported. Builders who need a UPS for a different single-board computer or who require multi-cell battery capacity should look at other solutions. The matching X306-C1 case and C296 heatsink are optional accessories for this specific revision.

Deciding specification

Maximum backup output is 5.1 V at 4000 mA from a single-cell holder. If your Zero 2 W project demands more current or a different voltage rail, this board will not meet the requirement. The V1.5 revision (October 2025) upgrades the battery holder for easier installation and long-term reliability.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $48.99
Typical for this category: the median of 1,420 items is $44.99.

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Specifications

Product
Product typeSingle Board Computers

Questions about this item

What power input standard and voltage limit does the X306 V1.5 use?

The board accepts power through a USB Type-C 5V Power In port rated for 5Vdc ±5% at 3A, and it works with the Geekworm UL listed 20W 5V 4A USB Type-C adapter.

Which mounting hardware and case are specified for the X306 V1.5 board?

The packing list includes four M2.5 x 5mm screws for securing the Raspberry Pi Zero 2W, and the compatible case is the X306-C1 designed for the V1.3 and V1.5 revisions.

How is the battery installed on the X306 V1.5, and what mistake should be avoided?

The V1.5 revision features an enhanced single-cell battery holder for smoother insertion and removal; ensure the battery polarity matches the holder markings before seating it fully.

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