--- product_id: 201187313 title: "X728" brand: "geekworm" price: "€ 93.97" currency: EUR in_stock: true category: "Geekworm" url: https://www.desertcart.hr/products/201187313-x728 store_origin: HR region: Croatia --- # Built-in RTC & safe auto power-on/shutdown Max 5.1V 5A UPS output Battery capacity reading & low battery auto shutdown X728 **Brand:** geekworm **Price:** € 93.97 **Availability:** ✅ In Stock ## Summary > 🔌 Power your Pi like a boss — never miss a beat with Geekworm X728! ## Quick Answers - **What is this?** X728 by geekworm - **How much does it cost?** € 93.97 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/201187313-x728) ## 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 - • **Compact Yet Mighty:** Sleek, space-saving form factor with Type-C and DC jack inputs, delivering up to 30.6W output — perfect for professional setups demanding reliability. - • **Smart Battery Intelligence:** Stay ahead with real-time battery capacity monitoring and automatic low battery shutdown to protect your projects. - • **Effortless Power Management:** Experience safe shutdowns, auto power-on, and full software-controlled power off for ultimate convenience and device longevity. - • **Expandable & Stackable Design:** Reserve the 40-pin header to stack with other Pi accessories or SSD shields, unlocking powerful data backup and enhanced applications. - • **Uninterrupted Power, Unmatched Control:** Seamlessly keep your Raspberry Pi 4 running with a robust 5.1V 5A UPS backup that handles power outages like a pro. ## Overview The Geekworm X728 UPS & Power Management Board delivers a reliable 5.1V 5A power backup solution tailored for Raspberry Pi 4/3 series. Featuring intelligent battery monitoring, safe auto shutdown, and RTC support, it ensures uninterrupted operation and data safety. Its compact design supports stacking with other Pi accessories, making it an essential upgrade for professionals seeking seamless power continuity and expandability. ## Description Buy Geekworm X728 (Max 5.1V 5A) UPS & Power Management Board for Raspberry Pi 4 | AC Power Loss Detection, Auto Power on, Safe Shutdown, Battery Capacity Reading, Low Battery Auto Shutdown, Buzzer: Uninterruptible Power Supply (UPS) - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - Power Management Features: X728 provides Max 5.1V 5000mA 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, Compatible with Raspberry Pi 4B/3B+/3B - User Manual and Compatibility: Google Geekworm Wiki search X728 for manual; Matching metal case for X728 and Pi 4 is X728-C1 - Power Supply Specifications: Power supply via Type-C socket : 5Vdc 5%, 3A OR Via DC power jack : 5Vdc 5%, 4A; UPS output : 5.1V 5% Max 5A; UPS charging current: 2.33.2A; Terminal Battery Voltage : 4.24V; Recharge Threshold : 4.1V - Important Safety Notes: Do not apply power to your RPi via the Micro USB or USB Type-C socket. Do not use battery with built-in protection circuit. Please make sure the polarity of battery is "+" to "+" and "-" to "-" and match with the "+" "-" mark on battery holder - Expandable Application Options: 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 | | Amperage | 6 A | | Battery Cell Type | Lithium Ion | | Best Sellers Rank | #540 in Computer Uninterruptible Power Supply Units | | Brand | Geekworm | | Color | X728 | | Connector Type | Type-C, DC jack | | Customer Reviews | 4.2 4.2 out of 5 stars (91) | | Enclosure Material | Plastic | | Form Factor | Compact | | Input Voltage | 5 volts | | Item Dimensions | 3.35 x 2.52 x 1.38 inches | | Item Dimensions D x W x H | 3.35"D x 1.38"W x 2.52"H | | Item Highlight | AC Power Loss Detection, Auto Power on, Safe Shutdown, Battery Capacity Reading, Low Battery Auto Shutdown, Buzzer | | Item Weight | 0.06 kg | | Manufacturer | Geekworm | | Maximum Power | 30.6 watts | | Mfr Part Number | TB-2019-71 | | Model Number | X728 | | Number of Items | 1 | | 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 | 5.1 volts | | Warranty Description | 3 months | | Wattage | 30.6 watts | ## Product Details - **Battery Cell Composition:** Lithium Ion - **Brand:** Geekworm - **Color:** X728 - **Product Dimensions:** 3.35"D x 1.38"W x 2.52"H - **Voltage:** 5.1 volts ## Images ![X728 - Image 1](https://m.media-amazon.com/images/I/719ULITJkzL.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. ## 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.hr/products/201187313-x728](https://www.desertcart.hr/products/201187313-x728) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-13*