(2PCS/lot) 1A Mini USB dedicated lithium battery charging pad charging module lithium battery charger module 1A Charging Board

This pack of two 1A Mini USB lithium battery charging modules offers a reliable and compact solution for charging single-cell or parallel-connected lithium batteries. It is ideal for South African makers, students, and hobbyists looking to integrate safe, USB-powered charging into their portable electronics projects.

Reliable linear charging

The module uses a linear charging method with an adjustable 1A charging current and a charging accuracy of 1.5%. It supports an input voltage range of 4.5V to 5.5V, delivering a full charge voltage of 4.2V.

Mini USB interface and indicators

Power is easily supplied via a mini USB input interface. Built-in LED indicators clearly display the charging status, showing red during charging and turning green once the battery is fully charged.

Intelligent thermal protection

If the 5V input voltage is high, such as 5.2V or 5.5V, the onboard chip automatically reduces the charging current to prevent overheating. The chip operates safely at a normal working temperature of up to 60 degrees Celsius.

Optimal charging current guidelines

For the best charging results, the charging current should ideally be 0.37 times the battery capacity. For instance, a 1000mAh battery is best charged at 400mA, as excessive charging speeds can reduce overall battery performance.

Compact physical footprint

Measuring just 25mm by 19mm by 10mm and weighing only 10g, this tiny charging board easily fits into compact enclosures. It is perfect for space-constrained DIY projects and custom portable devices.

Testing and connection notes

When testing the current, the ammeter must be connected in series only with the 5V input of the charging board. Ensure that the battery connection wires are not too thin and maintain good contact for optimal charging.