Review on 🔋 McIgIcM TP4056 1A Lipo Battery Charging Board: Micro USB Charger Module for DIY Lithium Battery Projects (10pcs) by Josh Gerhardt

Small but strong. I've only used one so far, but it's been a tough time. It is connected to a 5 volt solar panel and two 18650 lithium batteries, has been buried in the snow many times and still charges the batteries when the sun shines at least 4 hours a day. I look forward to using it in other projects soon.