---
product_id: 487149966
title: "Geekworm Raspberry Pi UPS, X728 V2.3 (Max 5.1V 6A) 18650 UPS & Power Management Board with Power Loss Detection, Auto On & Safe Shutdown Function for Raspberry Pi 4B/3B+/3B"
brand: "geekworm"
price: "NT$198"
currency: TWD
in_stock: false
reviews_count: 5
url: https://www.desertcart.tw/products/487149966-geekworm-raspberry-pi-ups-x728-v2-3-max-5-1v
store_origin: TW
region: Taiwan
---

# Real-time clock for precise timing Auto power-on & safe shutdown 5.1V 6A max power output Geekworm Raspberry Pi UPS, X728 V2.3 (Max 5.1V 6A) 18650 UPS & Power Management Board with Power Loss Detection, Auto On & Safe Shutdown Function for Raspberry Pi 4B/3B+/3B

**Brand:** geekworm
**Price:** NT$198
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Never lose power, never lose progress — UPS that keeps your Pi unstoppable!

## Quick Answers

- **What is this?** Geekworm Raspberry Pi UPS, X728 V2.3 (Max 5.1V 6A) 18650 UPS & Power Management Board with Power Loss Detection, Auto On & Safe Shutdown Function for Raspberry Pi 4B/3B+/3B by geekworm
- **How much does it cost?** NT$198 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/487149966-geekworm-raspberry-pi-ups-x728-v2-3-max-5-1v)

## Best For

- geekworm enthusiasts

## Why This Product

- Trusted geekworm brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Stack & Expand:** 40-pin header reserved for stacking with other Pi accessories, unlocking limitless modular possibilities.
- • **Seamless Integration:** Compatible with HDD/SSD shields for safe data backup, making your Pi a powerhouse for professional projects.
- • **Smart Power Management:** Intelligent UPS detects power loss instantly, enabling auto power-on and safe shutdown to protect your data.
- • **Battery-Backed Reliability:** Supports 18650 batteries (without built-in protection) for hours of uninterrupted mobile or remote operation.
- • **Power Your Pi Without Fear:** Delivers a robust 5.1V/6A backup to keep your Raspberry Pi 4B/3B+ running seamlessly during outages.

## Overview

The Geekworm X728 V2.3 UPS board is a high-capacity power management solution designed for Raspberry Pi 4B/3B+ models. It delivers a stable 5.1V output at up to 6A, supports 18650 battery backup, features real-time clock functionality, and offers intelligent power loss detection with auto power-on and safe shutdown. Its 40-pin header allows stacking with other Pi accessories, enabling enhanced modular setups and safe data backup with compatible HDD/SSD shields.

## Description

The X728 is an advanced uninterruptible power supply expansion board for all current models of the Raspberry Pi (Raspberry Pi 4B/3B+/2B/B+) using a 40 pin header. It provides 5.1V 8000mA Power Backup for even the most demanding Raspberry Pi set UPS, intelligent and safe power management, safe shutdown，AC power loss/ power adapter failure detection , auto power-on, full poweroff from software, and a real- time clock. The X728 reserves the 40-pin header that can be stacked with other Raspberry Pi accessory boards for enhanced applications. The X728 can also be used with the X825/X828/X829 (2.5" HDD/SSD Shield) and X857/X862/X872 (MSATA/M.2 SSD shield) for safe data backup.

Review: I put this UPS HAT on a Raspberry Pi 4B as part of a little “mobile lab” setup and it has been great so far. My stack is a Pi 4B on Raspberry Pi OS, a GeekPi PWM cooling hat with a small screen I am not really using yet, and a Panda PAU0F USB Wi-Fi adapter, all powered through this board with two 18650 batteries. Setup was easy. I watched the video the seller links, dropped the 18650 cells into the holder, plugged USB-C power into the hat, and let the hat feed the Pi through the GPIO header. It powered up on the first try and after that I mostly stopped thinking about it. The real test for me was what happens when you pull the plug. When I unplug the USB-C input, the Pi just keeps running. No reboot, no undervoltage icon, no SD card complaints. I have let this setup run on battery for a little over three hours and it stayed completely stable the whole time, which is more than enough for how I plan to use it. I actually started with a regular USB power bank and assumed that would work as a UPS. It did not. As soon as I unplugged the power bank from the wall, the Pi died instantly. That is what pushed me to try a proper UPS hat, and this one does exactly what I wanted. It turned my Pi 4 into something I can unplug, move around, or briefly lose mains on without worrying about corrupting the SD card.
Review: I bought this for my RPI to power it through blackouts, and it works really great. I tested it and it lasted over 24 hours with six 18650 batteries. Recently I was having problems with it rebooting randomly and the customer service was very responsive and helpful! As others have mentioned I do wish it was possible to dim the LEDs via software or switches, but I have a packet of Light Dims which work okay.

## Features

- [Function]X728 provides 5.1V 6000mA Power Backup for even the most demanding Raspberry Pi set ups, intelligent and safe power management, safe shutdown, auto power-on, full poweroff from software, and a real- time clock.
- [User Manual] Refer to Geekworm WiKi search X728; Match metal case for X728, refer to X728-C1(ASIN:B09Z6C64NN).PSU for X728, refer to ASIN: B09J856PND.
- [How to Power & Specifications]Power supply via Type-C socket : 5Vdc ±5%, ≥3A, Via DC power jack : 5Vdc ±5%, ≥4A; UPS output : 5.1V ±5% Max 6A; UPS charging current: 2.3~3.2A; Terminal Battery Voltage : 4.24V; Recharge Threshold : 4.1V
- [Important Note]√1. Do not apply power to your RPi via the Micro USB or USB Type-C socket. √2. Do not use 18650 battery with built-in protection circuit. √3.Please make sure the polarity of battery is "+" to "+" and "-" to "-" and match with the "+" "-" mark on battery holder!!!
- [Application]X728 reserves the 40-pin header to stack with other Raspberry Pi accessory boards for enhanced applications. The X728 can also be used with the X825/X828/X829 (2.5" HDD/SSD Shield) and X857/X862/X872 (MSATA/M.2 SSD shield) for safe data backup.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B087FXLZZH |
| Best Sellers Rank | 361,495 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1,854 in Barebone PCs |
| Guaranteed software updates until | unknown |
| Item model number | X728 |
| Manufacturer | Geekworm |
| Product Dimensions | 8.5 x 6.4 x 3.5 cm; 60 g |

## Product Details

- **Battery cell composition:** Lithium Ion
- **Brand:** Geekworm
- **Colour:** X728
- **Material:** Plastic
- **Voltage:** 5 Volts

## Images

![Geekworm Raspberry Pi UPS, X728 V2.3 (Max 5.1V 6A) 18650 UPS & Power Management Board with Power Loss Detection, Auto On & Safe Shutdown Function for Raspberry Pi 4B/3B+/3B - Image 1](https://m.media-amazon.com/images/I/719ULITJkzL.jpg)
![Geekworm Raspberry Pi UPS, X728 V2.3 (Max 5.1V 6A) 18650 UPS & Power Management Board with Power Loss Detection, Auto On & Safe Shutdown Function for Raspberry Pi 4B/3B+/3B - Image 2](https://m.media-amazon.com/images/I/81+Wa+ThCML.jpg)
![Geekworm Raspberry Pi UPS, X728 V2.3 (Max 5.1V 6A) 18650 UPS & Power Management Board with Power Loss Detection, Auto On & Safe Shutdown Function for Raspberry Pi 4B/3B+/3B - Image 3](https://m.media-amazon.com/images/I/815M-Cdf-cL.jpg)
![Geekworm Raspberry Pi UPS, X728 V2.3 (Max 5.1V 6A) 18650 UPS & Power Management Board with Power Loss Detection, Auto On & Safe Shutdown Function for Raspberry Pi 4B/3B+/3B - Image 4](https://m.media-amazon.com/images/I/81ZuIkuRnuL.jpg)
![Geekworm Raspberry Pi UPS, X728 V2.3 (Max 5.1V 6A) 18650 UPS & Power Management Board with Power Loss Detection, Auto On & Safe Shutdown Function for Raspberry Pi 4B/3B+/3B - Image 5](https://m.media-amazon.com/images/I/81qlRbV1pgL.jpg)

## Questions & Answers

**Q: Is the recharge threshold and terminal battery voltage adjustable? I want to keep the batteries between 80% and 20%**
A: No. I don't think this is possible, unlesss you write a script that monitors the voltage or % of charge, and open a relay that would cut off the power input to the system... You would need some external equipment (arduino?) for that.

**Q: Are the batteries hot-swappable? In other words, can I connect an external power supply and swap the batteries out while that is on?**
A: Hi friend,
Sorry that the X728 on board 18650 batteries does not support hot-swappable, please swap the batteries after power cut off.
best regards,
Geekworm Team

**Q: Does the rtc have a separate battery? or does it run on the 18650 batteries? what happens if you remove them? will it "lose" time?**
A: Hi friend,
The RTC function runs on the 18650 batteries. It will "lose" time if you remove the 18650 batteries.
best regards,
Geekworm Team

**Q: Can I use more than two batteries with the x728?**
A: It holds two batteries,  it does have an second input for more battery boards.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***S on 13 November 2025*

I put this UPS HAT on a Raspberry Pi 4B as part of a little “mobile lab” setup and it has been great so far. My stack is a Pi 4B on Raspberry Pi OS, a GeekPi PWM cooling hat with a small screen I am not really using yet, and a Panda PAU0F USB Wi-Fi adapter, all powered through this board with two 18650 batteries. Setup was easy. I watched the video the seller links, dropped the 18650 cells into the holder, plugged USB-C power into the hat, and let the hat feed the Pi through the GPIO header. It powered up on the first try and after that I mostly stopped thinking about it. The real test for me was what happens when you pull the plug. When I unplug the USB-C input, the Pi just keeps running. No reboot, no undervoltage icon, no SD card complaints. I have let this setup run on battery for a little over three hours and it stayed completely stable the whole time, which is more than enough for how I plan to use it. I actually started with a regular USB power bank and assumed that would work as a UPS. It did not. As soon as I unplugged the power bank from the wall, the Pi died instantly. That is what pushed me to try a proper UPS hat, and this one does exactly what I wanted. It turned my Pi 4 into something I can unplug, move around, or briefly lose mains on without worrying about corrupting the SD card.

### ⭐⭐⭐⭐⭐ Review
*by J***9 on 1 May 2021*

I bought this for my RPI to power it through blackouts, and it works really great. I tested it and it lasted over 24 hours with six 18650 batteries. Recently I was having problems with it rebooting randomly and the customer service was very responsive and helpful! As others have mentioned I do wish it was possible to dim the LEDs via software or switches, but I have a packet of Light Dims which work okay.

### ⭐⭐⭐⭐⭐ Review
*by S***N on 5 July 2025*

Product works very well, and and provides much more power than other similar systems. I'm able to power a Raspberry Pi 4 as well as a 5V USB powered router from the 5V pins on top of the board. They likely don't link to it because Amazon blocks them, but they also have extremely good documentation on their wiki which is easily found by google searching "X728 Geekworm." Their documentation provides both hardware specifications, as well as links to code repos to see how you can read current voltage and battery life status in for either display, auto timeout features, etc.

## Frequently Bought Together

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-23*