Raspberry Pi X708 Power Management and UPS HAT

Note: From April 2022 onwards, the X708 HAT is updated to V2.0 from V1.2.

Update:

• Added protection circuit and alarm function when the battery is reversely connected (RESERVED will be on)
• Supports the control of two fan speeds
• Solved the problem that the old version can't charge when the battery is exhausted
• Improved AUTO ON function
• Added battery over-discharge function
• Improved power path management function: when external AC power is supplied, the AC PSU supplies power to the UPS shild and also charges the battery.

The X708 is an advanced uninterruptible power supply expansion board for all current models of the Raspberry Pi using a 40-pin header. It provides 5.1V Max. 6000mA Power Backup for even the most demanding Raspberry Pi setups, intelligent and safe power management, safe shutdown, AC power loss/ power adapter failure detection, auto power-on, full power off from software, and a cooling fan. 

The X708 reserves the 40-pin header that can be stacked with other Raspberry Pi accessory boards for enhanced applications.

Note:

• 18650 lithium battery is NOT INCLUDED in the package
• The 18650 batteries should be connected in Parallel to the battery holder. 
• Do not apply power to your Raspberry Pi via the Micro USB socket or Type-C socket.

Please note that the battery length SHOULD be less than 67mm, some batteries with protection plates in the market are NOT supported. We do carry this compatible battery:

• 3.7V 2000mAh Li-ion Battery

• Smart and powerful Uninterruptible Power Supply (UPS)
  • Provides continuous operations for up to 10~30 hours (depending on battery type and qty used)
  • Max 5.1V 6000mA Power Backup for even the most demanding RPi setups
  • Supports 2A/3A fast battery charging
  • Integrated over current protection and over-voltage protection, Maxim's fuel-gauge systems (Reading battery voltage and percentage via i2c) and 10-A fully-integrated synchronous boost converter
  • Intelligent automatic charging and discharging
  • Operate in both charge mode and boost mode to allow full system management and battery power mgt
  • Integrated IN-to-SYS pass-through path to pass the input voltage to the system
  • Advanced system power-path management avoids batteries frequent charging and discharging; allows 3A fast charging and powering Raspberry Pi at the same time
  • On-board 4 green LEDs indicate battery charging and discharging levels of 25%, 50%, 75% and 100%
  • Batteries attach via PH2.0-2P or XH2.54-2P
• Intelligent and safe power management
  • Equipped with a momentary button for easy power control
  • Press the button to turn on
  • Press the button and hold for 1~2seconds to reboot
  • Press the button and hold for 3~7seconds to implement a safe shutdown
  • Press the button and hold for > 8 seconds to force shutdown
  • Supports safe shutdown and full power from software
  • On-board blue LED shows the status of power on, reboot, and shutdown
  • AC power loss or power adapter failure detection (LED and GPIO indication)
  • Optional to enable Auto power on when power is applied or restored
  • Automatic safe shutdown when battery low (voltage <3.0V)
  • Ultra-low standby power consumption to maximize battery life
• Integrated cooling fan that allows the heat from your Raspberry Pi to dissipate!
  • Completely solve the overheating problem of your Raspberry Pi
  • Efficient drop temp of Raspberry Pi CPU

Specifications:

• Power supply:
  • Type-C socket: 5Vdc ±5%, ≥3A
  • DC power jack : 5Vdc ±5%, ≥4A
• UPS output : 5.1V ±5% Max 8A
• UPS charging current: 1.8~2.2A / 2.3~3.2A
• Terminal Battery Voltage: 4.24V
• Recharge Threshold: 4.1V
• Battery: 3.7V Lithium Battery
• Compatible with:
  • Raspberry Pi 4 Model B
  • Raspberry Pi 3 Model A+
  • Raspberry Pi 3 Model B+
  • Raspberry Pi 3 Model B
  • Raspberry Pi 2 Model B
  • Raspberry Pi 1 Model B+
• Operating System: Raspbian Stretch

Packing list:

• 1 x X708 V2.0 Expansion Board
• 8 x M2.5 *5mm Screws
• 4 x M2.5 *12+6mm Spacers
• 4 x M2.5 *12mm Spacers
• 1 x Jumper link Pitch 2.54mm
• 1 x 18650 2-Cell Battery Holder with KM3x4mm screws

• X708, Raspberry Pi Wiki
• X708-Hardware, Raspberry Pi Wiki
• X708-Software, Raspberry Pi Wiki