Trim UPS for Raspberry Pi DFRobot DFR0494

A cap designed for the RaspberryPi 3B/2B/B+, serving asan emergency power supply in case of mains powerfailure. The HAT UPS will power the device for a certain period of time from theLi-Polbattery, allowing you to save the necessary elements and safely shut down the system. It can also be used in projects requiring mobility.3.7VLi-Pol battery can be usedas apower source.The module has a built-in battery charger circuit that will automatically switch to charging mode when power is connected to the microUSB port. LEDs on the board indicate thebattery charge level.

The sales item is a cap, the RaspberryPimini computerandthe battery can be purchased separately.

RaspberryPicompatible product

The manufacturer has prepared auser guide forRaspberry Pi users.

• Standard Raspberry Pi connector for connecting more overlays.
• Maximum output current 2 A.
• Automatic battery charge/discharge switchover.
• 5 LEDs to display battery capacity.
• Possibility to read battery information by I2C.
• Protection of lithium batteries against overcharging/discharging and overheating.
• Backflow protection.

• Supply voltage: 4.5 V to 5.5 V
• Power interface: microUSB
• Maximum charging current: 1,6 A
• Battery port: JST 2-pin raster 2 mm or soldering pads
• Compatible batteries: 3.7 V lithium batteries
• Output voltage: 5 V
• Maximum output current: 2 A
• Communication interface: I2C
• Operating temperature: -40°C to 85°C
• Spacing of mounting holes: 58 x 49 mm
• Dimensions: 65 x 56 mm

• 1x UPS HAT
• Screw set and distances

• The manufacturer's website: DFRobot DFR0494
• User guide