Review on Waveshare UPS HAT Raspberry Uninterruptible by Brian Summers

I've fiddled, fiddled, built and tried several battery backup solutions for the Pi. Everything is somehow broken. This one works. No reboots when reconnecting power. Nothing weakens or heats up. I have not extensively tested its ability to maintain battery balance (2s). I2c and some SMBUS python will give you some real time information about power, -+ amps and TOTAL voltage and % SOC. . So yes, it's a bit pricey, but I immediately bought another one. Now you need to disconnect your Pi from 8.4V. I think 12v is probably fine too. Otherwise there is nothing to complain about. My Pi also powers a small 7 inch display, which hasn't been a problem yet. I liked three items that I bought from Waveshare. You always seem thoughtful and have the most important information to make things work. Oh! A note. I didn't like the brass posts. They worked, but they were weird, small and thinner. Unlike the stands that came with my displays.