Raspberry Pi Li-ion Battery HAT 5V Regulated Output Bi-Directional Quick Charge Support Raspberry Pi 3 Model B/B+/Pi Zero Zero W

It works to power a Pi Zero 2w and works as a small capacity power bank. But it is NOT a UPS.

The one major flaw with this board is that it doesn't work - namely it doesn't provide any sort of regulated voltage. It may be a quality control issue. The LEDs light up when plugged into a powered USB - but when a fully charged Li-ion battery is loaded into the socket, there is no output voltage. Since this is the only function the board should provide, it is a complete dud.

Well built, and does work as described but with one major issue. It seems to need a "jump start". It will apear dead, unless it is plugged into a USB C power source (not tried micro usb). Then it will "boot" the hat board (LEDs progress showing level of charge). After that, it works as expected and can be turned on or off. Before that, the power switch does nothing.

The batteries we get here in Anchorage are a little bit longer than the holder, so it takes some serious force to get the batteries into it or out of it. I was worried it would break or ruin the batteries, but somehow I managed to get them in without damaging anything, (as far as I can tell).

Unit powers the Pi, and charges the 3.7 volt battery, but the USB port does not communicate nor will it charge (supply 5v) a mobile phone... It mentions noting about the USB so maybe its a future build?

I purchased the item which did not work and returned and requested a replacement. The replacement did not work either . Returned for refund.