Supercapacitor UPS for uninterruptible power supply to Raspberry Pi, DC 9-24V input, DC 5V 3A output, 10-60S, Endurance, 4S data backup

Function: 1. Product Use: This supercapacitor uninterruptible power supply (UPS) is designed for high-reliability applications. When the external power supply unexpectedly loses power, it quickly switches to supercapacitor discharge. 2. Endurance and Economy: This UPS can provide a power-off endurance time of 10 to 60 seconds and outputs an external power-off signal, which is sufficient for on-site data storage. 3. Input and Output: The power input is 9 to 4V DC (5.5 x 2.1 mm DC power jack or KF128 terminal) and the power output is 5V DC (USB 2.0 terminal or KF128), with a maximum current of 5V 3A. 4. Indicator Light: This UPS is equipped with a power indicator. The green DC IN indicates connection to an external power source, the red 5V OUT indicates a 5V output, and the brightness of the green Vcap LED varies according to the capacitor voltage. 5. Compact and convenient: This uninterruptible power supply (UPS) has a compact and lightweight design, measuring 90 x 56 mm, with a 3.5 mm positioning hole for easy connection and use. or KF128 terminal) Output power: 5V DC (USB 2.0 or KF128 terminal), maximum current 5V 3A. Supercapacitor: 25F. Charging current: limited to 1.4A, approximately 3 minutes to fully charge the capacitor. Discharging current: 5V 3A (continuous) when connected to an external power supply, 5V 3A (within 10 seconds) when only a supercapacitor is outputting power. Fault detection: 2.54mm x 2p, 3V indicates an external power source, 0V indicates a power loss. Power indication: green DCIN indicates connection of an external power source, red 5V OUT indicates a 5V output, the brightness of the green Vcap light changes with the capacitor voltage. Brighter when the capacitor is full, off when the capacitor is discharged. Product size: approx. 90 x 56 mm / 3.5 x 2.2 inches Locating hole: approx. 3.5 mm / 0.14 inches How to use: Connect an external power supply to provide 5V and charge the supercapacitor simultaneously. The higher the supercapacitor voltage, the brighter the green LED on the Vcap will be. It should be fully charged in 3 minutes: 5.4V for two fully charged supercapacitors and 2.7V for one. If the external power supply is disconnected, the red DC IN LED will turn off after the external power supply capacitor discharges, and the DC IN signal on the terminal will drop from 3V to 0V. At this point, the supercapacitor will discharge rapidly to maintain the output voltage at 5V. The duration of holding 5V is inversely proportional to the output current. The higher the output current, the shorter the 5V holding time. At 3 A, it can only last 5 to 6 seconds, while at very low current, it can last for several minutes or more. Package contents: 1 x Supercapacitor UPS