UPS Module for Raspberry Pi Pico

The Pico-UPS-B is a dedicated UPS (Uninterruptible Power Supply) module designed for Raspberry Pi Pico. It incorporates a Li-po battery switching charger with power path management, and also features onboard voltage/current monitoring via an I2C connection. 

Specifications

• Recharge Voltage: 5V
• Control Bus: I2C
• Battery Support: 3.7V Li-po with JST PH connector
• Dimensions: 60 × 21 mm

What's Onboard

1. ETA6003 - recharger chip
2. INA219 - voltage/current monitoring chip
3. S8261 - Li-po battery protection chip
4. FS8205 - Li-po battery protection MOS
5. AO3400 - reverse-proof MOS
6. SI2305 - counter current preventing MOS
7. Rapsberry Pi Pico header - for direct attaching to Raspberry Pi Pico
8. Power switch
9. Activate button - activate the protection circuit after replacing battery
10. Battery header - for connecting 3.7V Li-po battery

Pinout

Dimensions

Resources 

• Wiki

Shipping List

• 1 x UPS Module for Raspberry Pi Pico
• 1 x 600mAh LiPo

SAFETY CAUTIONS

• Li-ion and Li-po batteries can be unstable and may cause fire or injury if not used properly.
• Ensure correct polarity when charging or discharging; avoid using poor-quality chargers.
• Do not mix old batteries with new ones, or use batteries from different brands together.
• When buying lithium batteries, ensure compatibility with your expansion board and choose reliable manufacturers. Conduct aging tests for safety.
• Lithium batteries should be replaced after reaching their cycle limit or after two years, whichever comes first.
• Store batteries carefully, away from flammable materials and out of reach of children to avoid accidents.