Review on 🔋 Versatile 4-in-1 Board UPS: Efficient Raspberry Pi 18650 Battery Charger, 3.7V to 5V 12V Conversion, Built-in Protection (5V 15W Output) by Juan Castillo

Clean, well finished, solid design, does what it's supposed to do with little fuss - replaced R7 with 91K for 12V output, added a pair of properly fitted Arctic Silver heatsinks. Epoxy (no not conductive, no need to worry if you're careful), keep everything nice and cool during charging and discharging, currently using it in testing various projects, Yuji 98 CRI 5W Light Engine for two solar powered lanterns. shows our new barn; The CC/CV boost board we use as drivers accepts 12V and drives the Yuji VTC COB with 250mA each, 20V, the consumption of the Li-ion cells is about 2.5A, which the board delivers flawlessly. Very good.