Miya Baby Fast Wireless Car Charger Mount Adjustable Gravity Air Vent Phone Holder, 7.5W Compatible iPhone XR/XS Max/XS/X/8/8 Plus, 10W for Galaxy S9/S9+/S8/S8+/LG G7, and 5W for All Qi-Enabled Phones

Hard to solder to but thats because i'm using a wimpy 30W soldering iron.other than that it works GREAT!!! The protection cuts in at just the right time too! Just before 2.7v!And it has LED's for each super capacitor!! WOOO!!! Couldn't ask for a better deal for the price!

cool its got LED light on it when the caps are at the 2.7 volt limit

I should have looked more closely into this item - the pin configuration of my D Cell Maxwell super caps is not the same.So if you have the blue Maxwell caps, the 2,7v 300Fd ones such as what I got, you do not want to buy this one.But, because I do not want to wait for something to take two weeks from China, I will use this anyway and just attach with short jumpers from the caps to the thru-hole pcb.