diymore 5pcs TP4056 Type-C USB 5V 1A Battery Charger Module Charging Board wi...

Nice part. Hooked one up to a 6 month old/never-charged 1100mah 18350 and it charged from 3.7v to 4.24v (which is exactly +1% as stated in the spec) starting at about 950ma for about an hour. The large 8pin chip reached 120ºf during this but temps tapered off as charge current did. The red status led lit as expected and I’m waiting now for the green to come on - voltage has not exceeded 4.24v and the current is dropping, dropping, dropping as it nears full charge. All in all this is a very nice part, no muss, no fuss. As the charge current dropped below about 250ma the voltage did rise to 4.26v as measured by a $2 miniature digital voltmeter. The full charge led is blue, not green

I had some hiletgo variants and they would not work. I bought these and after reading more someone indicated it may be the cable. I did usbc to usbc and these did not fire up. Soon as I went to usb to c cable the they fired up. Haven’t tested the charging etc, but this should help people that are having difficulty using a usbc cable and the leds not turning on

Great price and works as expected.

Works well but very sensitive. They will charge. Batteries with a USB A to C cable. NO USB PD support. Very sensitive to voltage on wrong pins or lack of voltage on pins. A few of mine have died.

Excelente

Great little boards for hobbyists ez to work with

Be wary. I bought 5 a year ago for a quick project, however I was never able to get it to work. That first experience was a year ago. Last week I used another in a different project, and as before it wouldn't work at all. Today while working on this new project, I replaced the USB C batt charger module (the 3rd or 5) None or the 5 will set an LED no matter what is connected. The wiring isn't complex.. to check a simpler hookup, I put an 18650 (reading 2.9 vdc) and plugged in the USB C using a verified good cable and verified good charger. Concluding, zero of the 5 modules I bought a year ago work.

A caveat before you read further: I'm an electronics hobbyist with *some* experience, but by no means an expert. I got these because I wanted use a Li-ion battery as a power source for an ESP32. My setup was 18650 cell > this charge controller > 5v boost converter > ESP32. It's been iffy from the start. The main IC on this does get HOT at the start of recharge. Other reviews say this is because it is a linear power converter and has to basically dump the excess wattage to bring the 5v USB input down to the correct charge voltage. I get that, but yeesh. It's too hot to touch at times. I don't feel super confident leaving this unattended. On the plus side, it did recharge my battery a couple times and nothing caught fire lol. Seems to start and stop at the correct voltages as expected. Then everything stopped working. Again, I'm not an expert, so all of this could be on me. TL;DR does it work? Yep. Is it ideal? Really not sure.