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Use the USB Charger Doctor to measure the working voltage and current output for any USB port and project. This plastic dongle plugs between a USB device, and passes the data lines through.

Single-cell lithium base battery charger & protection module. The charging will be via a micro B connector. Lithium base battery includes Li-po and Li-ion battery as the charging and discharging characteristic is similar.

The Decoy Trigger handles the complex "handshake" conversation between a power source and a device. By mimicking the signals of a high-end smartphone, it tells the charger to switch from the standard 5V up to 9V, 12V, 15V, or 20V.

PiCar-X, ideal for beginners from elementary school and beyond, presents a fascinating introduction to robotics, programming, and electronics.  Integrated with ChatGPT-4o, it responds to complex queries. Its flexibility fosters unique project creation and exploration. Compatible with Raspberry Pi 5/4/3B+/3B/Zero W

This is a very handy tool for testing USB devices and power supplies, checking load levels and debugging battery chargers and boost converters.

A compact, convenient USB-C LiPo/LiIon battery charger, perfect for feeding hungry batteries.

Single-cell lithium base battery charger & protection module. The charging will be via a micro B connector. Lithium base battery includes Li-po and Li-ion battery as the charging and discharging characteristic is similar.