Supercapacitor UPS 5V/3A Backup Power Board 25F
Supercapacitor UPS 5V/3A Backup Power Board 25F for Raspberry Pi 25F capacitor; 15-110s backup; 5V/5A peak/3A capacitor; 5-24V input; 3 in/3 out; protection; -40°C to +65°C.
Product Overview
Engineered for Reliability, Built for the Unexpected This advanced supercapacitor UPS board is the ideal solution for safeguarding single-board computers like the Raspberry Pi and other critical 5V embedded systems from sudden power interruptions. By integrating a high-cycle-life supercapacitor bank, it provides a crucial buffer window—typically 15 to 110 seconds—upon mains power failure. This window allows your system to complete writing operations, save essential data, and execute a controlled software shutdown, significantly reducing the risk of data corruption and file system damage. With a broad 5V-24V input range and efficient 5V/5A peak output, this module offers a professional-grade, maintenance-free alternative to traditional battery-based UPS solutions.
Key Features:
- High-Peak Discharge Capability: Capable of delivering a 5V/5A peak output when externally powered and a stable 5V/3A output solely from its supercapacitors, ensuring your power-hungry devices operate without interruption.
- Multi-Interface Input & Output: Accepts power via USB Type-C, a DC barrel jack, or a 2-pin terminal. Distributes 5V power through a USB Type-A port, a 2-pin terminal, and a 2-pin header for ultimate system integration flexibility.
- Intelligent Status Indication: Features dedicated LEDs for input power (VIN), output status, and three LEDs for approximating the supercapacitor’s current voltage level (refer to the voltage table in the manual).
- External Power Loss Detection: Includes a dedicated 2-pin header (DetcVIN) that outputs a 3.3V logic-high signal when external power is present, providing a clean, easy-to-use interrupt for your host system (e.g., Raspberry Pi GPIO).
Parameter
| Input Voltage Range | 5V – 24V DC |
| Output Voltage | Regulated 5V DC |
| Supercapacitor Bank | 25F (Two 2.7V / 50F cells in series) |
| Max. Charge Current | Approx. 800 mA |
| Peak Output (Ext. Power) | Up to 5V / 5A |
| Backup Output (Cap only) | Stable 5V / 3A |
| Power Loss Detection | 3.3V Logic Level (on DetcVIN header) |
| Backup Time (Typical) | 15s @ 3A load ~ 116s @ 0.5A load |
| Operating Temperature | -40°C to +65°C |
| Dimensions (L x W) | 85 mm × 56 mm |
| Mounting Holes | 6x M2.5 |
Module Resource Profile
(1). Type-C connector: used for connecting a power adapter as the input.
(2). 3.81 mm 2-pin screw terminal: input terminal, supports 5V-24V input.
(3). DC-044 connector: external power input through a DC plug, supports 5V-24V input.
(4). Power input indicator LED: lights up when input power is present; turns off when power is disconnected.
(5). Supercapacitors. (6). Supercapacitor voltage status LEDs: provide an approximate indication of the current supercapacitor voltage.
(7). Output indicator LED. (8) .2-pin 2.54 mm pitch capacitor measurement header: used to measure the voltage of an individual supercapacitor.
(9). 2-pin 2.54 mm pitch input detection header: outputs 3.3V when external power is present and 0V when power is lost.
(10). 3.81 mm 2-pin screw terminal: 5V output. (11). 2-pin 2.54 mm pitch header: 5V output.
(12). USB Type-A connector: 5V output. (13). M2.5 mounting holes.
- 1. Robust Supercapacitor Backup: Unlike standard batteries, the integrated 25F supercapacitor bank delivers rapid charge and discharge cycles with an exceptionally long lifespan. In the event of a power loss, it provides a stable 15-110 seconds of backup time (depending on load), allowing your system to save data and perform a safe shutdown.
- 2.Wide Input & High-Efficiency Output: Supports an extensive input range of 5V to 24V, compatible with most power adapters and DC supplies. With external power and fully charged capacitors, it can deliver a peak output of 5V/5A. From a fully charged state alone, it can reliably provide 5V/3A, achieving up to 92.67% conversion efficiency for reduced energy waste.
- 3.Comprehensive Onboard Protection: Safeguard your valuable equipment with built-in input reverse-polarity protection and output short-circuit protection. The board is designed to prevent damage from common wiring errors, ensuring reliable operation for your Raspberry Pi or other sensitive electronics.
- 4.Clear Visual & Logic Status Indicators: Monitor your power status at a glance with multiple LEDs: input power indicator (VIN LED), output status LED, and a 3-LED array for approximating supercapacitor voltage. Additionally, a dedicated 3.3V logic-level header (DetcVIN) provides a clear external power loss detection signal for your host system.
- 5.Flexible Connectivity & Compact Design: Features a wide array of connections including USB Type-C, DC-044 barrel jack, and a 2-pin terminal for input; USB Type-A, 2-pin terminal, and 2-pin header for 5V output. Its compact 85mm × 56mm board includes six M2.5 mounting holes, making it an ideal fit for DIY projects and single-board computer cases.
| SKU: | B0H4CR1H8Y |
| Weight: | 72 Grams |
| Brand: | Hengantech |
| Manufacture: | Hengantech |
Product Description


Module Resource Profile
(1). Type-C connector: used for connecting a power adapter as the input.
(2). 3.81 mm 2-pin screw terminal: input terminal, supports 5V-24V input.
(3). DC-044 connector: external power input through a DC plug, supports 5V-24V input.
(4). Power input indicator LED: lights up when input power is present; turns off when power is disconnected.
(5). Supercapacitors. (6). Supercapacitor voltage status LEDs: provide an approximate indication of the current supercapacitor voltage.
(7). Output indicator LED. (8) .2-pin 2.54 mm pitch capacitor measurement header: used to measure the voltage of an individual supercapacitor.
(9). 2-pin 2.54 mm pitch input detection header: outputs 3.3V when external power is present and 0V when power is lost.
(10). 3.81 mm 2-pin screw terminal: 5V output. (11). 2-pin 2.54 mm pitch header: 5V output.
(12). USB Type-A connector: 5V output. (13). M2.5 mounting holes.











