Stop faffing about with separate boards for charging, boosting, and protection. This 4-in-1 DC-DC boost converter handles the lot. Designed for the cynical pro who needs a dead-reliable DIY mobile power supply without the extra bulk. It takes your standard 3.7V lithium-ion battery (18650 or 14500) and steps it up to a clean 5V. Built-in overcurrent, overvoltage, short-circuit, and over-temperature protection means your prized 18650s won’t turn into a spicy pillow. Sorted.
Highlights
All-in-One Design: Combines charging, discharging, boosting, and battery protection in a 25.2 x 16mm footprint.
Intelligent Output Control: Automatically turns on when a load is detected (>50mA) and shuts off after 30 seconds to save power.
High Efficiency: Boasts a massive 96% discharge conversion efficiency to squeeze every drop of flight time from your cells.
Charge/Discharge Simultaneously: Yes, you can use your device while charging the battery. Just don’t use it for a UPS.
Why You Want It
Because space and weight matter. Whether you’re building a custom FPV ground station, a portable Bluetooth audio amp, or powering an MCU dev board, this module gives you bulletproof 5V power without needing a separate BMS. At 2.3g, you’ll forget it’s even there.
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