Battery chargers

Professional Li-ion battery charging requires CC/CV (Constant Current/Constant Voltage) technology to ensure safe, efficient charging while maximising battery lifespan. This Li-ion charger delivers professional-grade charging performance with 1A fast-charging capability, modern USB-C connectivity, and safety monitoring. Designed for Arduino projects, IoT devices, and portable electronics, this charger provides the reliable, high-current charging that demanding applications require. The integrated dual-LED status system and protection circuitry ensure safe operation, while the compact design enables easy project integration.

**IMPORTANT SAFETY AND USAGE REQUIREMENTS:** This charger provides CC/CV charging for single-cell 3.7V Li-ion/LiPo batteries only. Maximum recommended battery capacity is 4000mAh for optimal charging performance. Input voltage must be 4.5-5.5V via USB-C (standard USB power sources compatible). This board does not include reverse polarity protection, overvoltage protection, or short-circuit protection. Ensure correct battery polarity and inspect connections before use. For applications requiring protection features, consider our protected charger variant. Never leave charging unattended, monitor battery temperature during charging, and ensure adequate ventilation. Compatible with standard JST-PH-2mm battery connectors. Comprehensive technical documentation, charging guidelines, and safety protocols are available in our documentation resources below.

Product usage tips: The red LED glowing means the battery is charging. The green LED glowing means the battery is charged. Easy embedding into a project with the four mounting holes on the board. Comes with 5 pins that need to be soldered.

Note: This charger has no protection against reverse polarity, short-circuit, too high or too low voltage. If you’re looking for a charger with a protector, click here.

Lithium batteries are charged differently than regular batteries and devices. You’ll need a li-ion charger like this one to charge them. Integrated with the CC/CV charging technology, it is the simplest way to charge a lithium-ion battery.

The board has a USB Type-C connector for power, a JST-type connector for batteries, the charging circuit, a protector, and two status LEDs. Comes with 7 pins that need to be soldered.

Product usage tips:

Note: This charger has protection against short-circuit, too high, or too low voltage. It has no protection against reverse polarity.

Introducing our new MPPT Li-Ion charger, your all-in-one solution for efficient and reliable battery charging using solar energy! Whether you’re a hobbyist tinkering with electronics or a professional in need of a compact charging solution, this board will make things easier.

On board is the CN3791 which provides sophisticated charging algorithms tailored to Li-Ion batteries, ensuring precise control over the charging process for maximum efficiency and safety. Next to it, there are quick terminals with springs on the board for an even simpler and faster connection of the solar panel and battery. There is also a JST connector for connecting all li-ion batteries from our offer.

The BQ24295 is a versatile Li-ion battery charger designed to provide efficient and reliable charging for single-cell lithium-ion or lithium-polymer batteries. It supports various charging modes, including constant current (CC) and constant voltage (CV) charging, to ensure the battery is charged quickly and safely.

The BQ24295 charger operates on a wide input voltage range, typically from 4.35V to 17V, allowing it to be powered by a variety of power sources, including USB ports and AC adapters. It also features integrated power path management, which allows simultaneous charging of the battery while powering the connected device, providing uninterrupted operation.