MakerFocus Raspberry Pi 4 Battery Pack UPS, V3Plus Expansion Board with 10000mAh Battery, Type-C Interface for RPI 5 4B 3B+ 3B 2B+

Just got it a few hours ago and it's running a Pi4B and a small 1920x720 monitor no problem. The charge indicator dropped from 4 lights to 3 rather quickly but I'm assuming this is due to the manufacturer not charging the battery to 100% which is perfect. It was very easy to set up via USB A to C to both the Raspberry Pi and Monitor. At the time of writing the indicator dropped to 2 lights. If this can run the set up for around 4 hours I will be a happy camper - fingers crossed. The baseus 10k mah 22.5 watt ran about that long with this same set up. This all connected without issues and didn't take anything special aside from hooking up the USB ports, though I can't speak to the pogo pin method. Cost wise this aligns with a battery bank of about the same size though its a littler pricier than the Baseus previously mentioned, which is a fantastic bank. I hope the manufacturer sticks around with this product since I will likely be buying more. Highly recommend for now!

I’m giving it five stars cause it does what it’s supposed to do. I’m the idiot who has a pi 5 and wanted it to supply enough power with amps and it doesn’t barely supply enough power to power the five alone, the five and a screen and any peripherals or run any programs the five just shuts down because it’s not supplying enough amps but on my 4 b model, it works great power, the screen and everything

This worked great as a UPS. I thought it was defective when I first used it as my Pi rebooted but it turned out my USB cable to the Pi was bad. I tested the battery capacity using a USB tester between the output power and the Pi and I measured close to the rated battery capacity. I could feel no heat from the board so it is very efficient. A star taken off for a bright and noisy charging LED. The noise could be a problem for some who are sensitive to high pitched sound if it was in a bedroom.

Excellent little ups. Capable enough while not being super tailored to a single flavor of board. Not having pogo pins is a major bonus for install flexibility

I bought this to power a Raspberry PI which in turn powers an Arduino. It certainly powers everything. It doesn't take more than a couple hours to reach full charge when plugged into an outlet. That said, it doesn't last very long, I get about an hour of power depending on what I am doing. It's also rather large and bulky so if your form factor is small, note that you will need much more space to facilitate the battery. The board is about the size of a Raspberry PI, slightly smaller, and only as thick as a circuit board. However the battery is much larger and awkward. It won't easily stack with the PI unit and the board, so it needs an additional larger space to facilitate its storage. There is a port at the end of the board to incorporate a power switch and that even reserves two pins for an LED, both of which I utilized well. There's also built in USB ports for ease of use. Basically It's a solid unit that does what it's made to do, but it's bulky and doesn't provide power for as long as you would expect for such a large battery. Regardless, I used it successfully for a project.

I replaced their original version 1 UPS with this new V3P version. It cleared all of the low voltage warnings I have always gotten with the V1 circuit. My Raspberry Pi 4B is loaded with a 4-Port USB to RS-232 Serial Adapter Hub, two RF wireless USB mice, and its Pimoroni Fan Shim cooling fan. Running OpenCPN navigation program, no problem. During my boat's diesel engine 600A start, pulling battery voltage supply to the board to very low, the UPS powers the RPi and its loads with no interruption or reset or Pi low voltage warnings. This upgrade to deliver a max output current of 3A, just like the official RPi AC wall plug power supply, has made all the difference. FYI, I supplied both the old and this new board from a 12VDC to 5VDC Dual-Port USB Car Charger Adapter, 4.8 Amp, 24W, using a Dual USB Male Jack Y Splitter Data Charger Cord to supply the two 2.4A channels in parallel as 4.8A to this UPS circuit. That is, supplying 5 x 4.8 = 24W to the board enables it to deliver 5.1V x 3A = 15.3W output power to the RPi. With the old V1 board output under load was 4.8-4.9VDC. With the new board it is 5.2V+. Perfect!