--- product_id: 600823327 title: "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: "803 zł" currency: PLN in_stock: true reviews_count: 5 category: "Geekworm" url: https://www.desertcart.pl/products/600823327-raspberry-pi-ups-x728-v2-3-max-5-1v-6a store_origin: PL region: Poland --- # Real-time clock & safe auto shutdown 5.1V 6A max power output Lithium-ion 18650 battery support 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:** 803 zł **Availability:** ✅ In Stock ## Summary > 🔌 Power your Pi like a pro—never miss a beat! ## Quick Answers - **What is this?** 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?** 803 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/600823327-raspberry-pi-ups-x728-v2-3-max-5-1v-6a) ## 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 - • **Smart Power Management:** Intelligent auto power-on, safe shutdown, and power loss detection protect your projects and data. - • **Unmatched Power Backup:** Delivers a robust 5.1V/6A output to keep your Raspberry Pi running seamlessly during outages. - • **Versatile Compatibility:** Works flawlessly with Raspberry Pi 5/4B/3B+/3B and integrates with HDD/SSD shields for secure data backup. - • **Battery Health Monitoring:** Real-time battery capacity reading and low battery auto shutdown ensure uninterrupted performance. - • **Modular & Stackable Design:** Reserves the 40-pin header for stacking with other Pi accessories—expand your setup without compromise. ## Overview The Geekworm X728 V2.3 UPS board is a high-performance power management solution for Raspberry Pi models 3B, 3B+, 4B, and 5. It delivers up to 5.1V at 6A, supports 18650 lithium-ion batteries, and features intelligent power loss detection, auto power-on, safe shutdown, and real-time battery monitoring. Designed for stacking with other Pi accessories, it ensures your projects stay powered and data remains safe during outages. ## 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: Reliable UPS for my Pi 4 mobile lab Review: Really useful UPS for my RPI ## Features - Function: X728 provides 5.1V 6000mA Power Backup, intelligent and safe power management, safe shutdown, auto power-on, full poweroff from software,Battery capacity reading, Low battery automatic shutdown, Buzzer alarm, RTC - User Manual: Google Geekworm Wiki search X728 for manual; Matching metal case for X728 and Pi 4 is X728-C1 - How to Power and Specifications: Power supply via Type-C socket : 5Vdc ±5%, ≥3A OR 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 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 - Important note: 1. the script must be installed first for the product to work properly 2. Compatible with Raspberry Pi 5/4B/3B+/3B ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B087FXLZZH | | Amperage | 6 Amps | | Battery Cell Composition | Lithium Ion | | Battery Cell Type | Lithium Ion | | Best Sellers Rank | #1,351,869 in Electronics ( See Top 100 in Electronics ) #352 in Uninterrupted Power Supplies | | Brand | Geekworm | | Brand Name | Geekworm | | Colour | X728 | | Connector Type | Type-C, DC jack | | Customer Reviews | 4.3 out of 5 stars 80 Reviews | | Enclosure Material | Plastic | | Form Factor | Rack | | Input Voltage | 5 Volts | | Item Dimensions | 8.5 x 6.4 x 3.5 Centimeters | | Item Weight Unit of Measure | 0.06 Kilograms | | Manufacturer | Geekworm | | Manufacturer Part Number | TB-2019-71 | | Material | Plastic | | Maximum Power | 30.6 Watts | | Model Number | X728 | | Number of Outlets | 1 | | Output Current | 6000 Milliamps | | Output Voltage | 5.1 Volts | | Output Wattage | 30.6 Watts | | Power Plug Type | No Plug | | Runtime | 30 hours | | Voltage | 5 Volts | | Wattage | 30.6 Watts | ## Product Details - **Battery Cell Composition:** Lithium Ion - **Brand:** Geekworm - **Colour:** X728 - **Material:** Plastic - **Voltage:** 5 Volts ## Images ![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) ![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) ![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) ![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) ![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 ### ⭐⭐⭐⭐⭐ Reliable UPS for my Pi 4 mobile lab *by E***S on 13 November 2025* ### ⭐⭐⭐⭐⭐ Really useful UPS for my RPI *by J***9 on 1 May 2021* ### ⭐⭐⭐⭐⭐ Easy To Use With Clear Documentation *by S***N on 5 July 2025* ## Frequently Bought Together - Geekworm for Raspberry Pi UPS, X728 (Max 5.1V 6A) UPS & Power Management Board with AC Power Loss Detection|Auto Power On|Safe Shutdown|Battery Capacity Reading|Low Battery Auto Shutdown|Buzzer - Geekworm Cooling Fan Expansion Board (X728-A1) for X728 & Raspberry Pi 4 Model B/ 3B+/ 3B/ 2B - Geekworm 11mm Thickness Embedded Heatsink (P165-B) for Raspberry Pi 4, Armor Aluminum Radiator Compatible with Raspberry Pi 4 Model B Computer and Pi 4 Expansion Board Support POE Extension --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/600823327-raspberry-pi-ups-x728-v2-3-max-5-1v-6a](https://www.desertcart.pl/products/600823327-raspberry-pi-ups-x728-v2-3-max-5-1v-6a) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-23*