EU Plug Universal Li-ion Battery Charger

This charger takes the three most common cylindrical Li-ion cell sizes hobbyists actually use - 18650, 16340, and 14500 - and charges any of them to a standard 4.2V/500mA output, auto-stopping once the cell reaches full charge rather than needing a timer or manual disconnection. That auto-cutoff is a genuine safety feature; leaving a lithium cell on a charger indefinitely without cutoff protection risks overcharging damage.

A universal 100-240V AC input means it works directly off mains power in essentially any country's voltage standard, useful for anyone sourcing cells or traveling internationally, while the EU plug format suits the specific socket standard it's designed for. Its compact, lightweight build keeps it genuinely portable rather than a bulky charging station.

Common uses are recharging spare 18650 cells for flashlights, battery packs, or vaping devices, keeping 14500/16340 cells topped up for smaller electronics, and general single-cell Li-ion charging where a smart multi-bay charger is more capability than actually needed.