1.DFRobot Raspberry Pi UPS HAT is an uninterruptible power supply expansion board for the Raspberry Pi. The UPS HAT can continue to provide power for the Raspberry Pi for a certain period of time in the event of a system power failure, avoiding system damage caused by sudden power failures, such as when used for routing, etc. It is necessary to use the UPS for safe shutdown. In addition, in some mobile projects, such as raspberry camera, tablet, field data acquisition system, a battery is needed to provide a stable power supply.

2. We use a MAX17043 for accurate power detection, and an MCU onboard for data processing. The Raspberry Pi motherboard only needs to obtain the power, battery voltage and other information directly through basic I2C communication. The onboard 5 LEDs provide an intuitive indication of the current battery level without programming.

3. We use a very good power solution, with more than 90% power conversion efficiency and diodeless design, our UPS expansion board can maintain low heat even under the continuous high load of the Raspberry Pi.

 

characteristic:
Raspberry Pi standard size expansion interface cascade design, can continue to cascade other expansion boards
Support 2A maximum current output, satisfying more usage scenarios of Raspberry Pi
Charge and discharge automatic path switching without power down design
More accurate 5 LED power indicator
Onboard Maxim Patented Algorithm Fuel Gauge IC
Support I2C communication to read battery information
Switching does not power down
Lithium battery charge and discharge protection and overheat protection
Motherboard power supply anti-backflow
 

Technical specifications:
Supply voltage: 4.5~5.5V
Supply current: (Recommended power adapter with 2A and above power)
Power supply interface: Micro-USB
Maximum charging current: 1.6A
Battery interface: PH2.0-2P or solderable contacts
Adapter battery: 3.7V lithium ion battery
Output voltage: 5V
Maximum output current: 2A
Adaptation motherboard: Raspberry Pi B/B+/2B/3B/3B+ and possible subsequent versions
Communication interface: I2C
Size: 65mmx56mm
Mounting hole size: 58mmx49mm
Working temperature: -40 ° C ~ 85 ° C
 

Shipping list:
Raspberry Pi UPS Expansion Board x1
Mounting copper posts and screws
 

Precautions
3.7V lithium battery is not included in the delivery list due to shipping restrictions
Please choose to use 3.7V lithium ion battery that meets the technical specifications.
When the product is working, the power supply area will have a certain degree of heat. Please avoid the possible safety hazards according to the actual application.