Duinotech Arduino Compatible Lithium Battery USB Charger Module

Your Arduino project needs battery power, but wiring up a proper charge circuit every time is a pain. This module handles it. Feed it a Li-Po cell via the solder tabs or drop in a mini-USB cable, and the linear charger takes it to 4.2 V full. A small LED tells you when it's done — no multimeter guesswork. Output comes off the solder tabs so you can wire straight into your build

• Linear charge to 4.2 V full-charge voltage with visible LED status indicator
• Input via solder tabs or mini-USB port — use whichever suits your bench setup
• Output via solder tabs for direct wiring into your circuit
• Arduino compatible — pairs with standard Li-Po cells for portable projects
• 1 % linear charge rate keeps things predictable and safe