Waveshare Power Management HAT (B) for Raspberry Pi
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The Waveshare Power Management HAT (B) adds lithium-battery backup and smart power control to a 40-pin Raspberry Pi. It charges the battery while powering the Pi, and an onboard RP2040 handles start-up, shutdown and monitoring.
Compatibility: per Waveshare, this HAT does not support Raspberry Pi 4B or 3B+. Check your board before ordering.
Key features
- USB Type-C 5V input or 3.7V lithium battery via PH2.0 connector
- ETA6096 charger supports charging and output at the same time
- MP28167-A buck-boost converter
- INA219 voltage and current monitoring
- RTC with CR1220 backup cell holder
- RP2040 controller with 4MB flash; UART/GPIO communication
- Battery reverse and counter-current protection; power button, fan header and status LEDs
Who is it for
Makers building portable, battery-backed or remotely deployed Raspberry Pi projects that need safe shutdown and power monitoring.
What's in the box / not included: Power Management HAT (B), 2Γ20-pin female header, USB Type-A to Type-C cable, screws pack. Not included: Raspberry Pi, lithium battery, CR1220 cell.
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