New J5019 Hw 357 2-in-1 Li-ion Battery Charger with Boost Converter Module – Universal Plug, Variable Voltage 4-27V

Comprehensive Battery Charging: Effectively charge single-cell Li-Ion batteries with adjustable charging current up to 2A.

Powerful Boost Converter: Step up the voltage from a 3.7V Li-Ion battery to an adjustable output of up to 28V, providing power for various devices.

Compact and Efficient: The compact design and high efficiency make it ideal for portable applications.

Wide Applications: Suitable for charging single-cell Li-Ion batteries, powering small devices, driving LEDs, and more