Geekworm Raspberry Pi X728 (Max 5.1V 6A) 18650 UPS & Power Management Board with Auto On & Safe Shutdown Function

X728 V2.5 is released in August 2023.

Overview

The X728 is an advanced uninterruptible power supply expansion board for all current models of the Raspberry Pi (Raspberry Pi 4B/3B+/2B/B+) using a 40 pin header. It provides 5.1V 6000mA Power Backup for even the most demanding Raspberry Pi set UPS, intelligent and safe power management, safe shutdown, auto power-on, full poweroff from software, and a real- time clock.

User Manual: https://wiki.geekworm.com/X728

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For Use With

• Raspberry Pi 5
• Raspberry Pi 4 Model B
• Raspberry Pi 3 Model B+ /3B/2B/B+/3A+

Operating System

• Raspbian Stretch
• Safe shutdown function tested for Raspbian, other OS NOT to be tested and advised

Key Features
Smart and powerful Uninterruptible Power Supply (UPS)

• Provides continuous operations for up to 10~30hours (depending on battery type and qty used)
• Max 5.1V 6000mA Power Backup for even the most demanding RPi set ups
• Can work with X728-A2 stackable 2-cell battery holder to increase battery capacity
• Integrated over current protection and over voltage protection
• Integrated Maxim's fuel-gauge systems (Reading battery voltage and percentage via i2c)
• User Manual: https://wiki.geekworm.com/X728
  

Intelligent and safe power management

• Equipped with momentary button for easy power control
• Press the button to turn on
• Hold for 1~2seconds to reboot
• Hold for 3~7seconds to implement safe shutdown
• Hold for >8seconds to force shutdown
• Supports safe shutdown and full poweroff through software
• 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
• More detail: https://wiki.geekworm.com/X728

Integrated Hardware DS1307 Real Time Clock (RTC) with Battery Back-Up

• Keeps track of the time while the Raspberry Pi is switched off
• Allows the Raspberry Pi to retrieve the current date and time when it is switched back on
• Uses the 18650 battery to maintain the date and time - no additional battery required
• Powers the Raspberry Pi via the 40-pin header - no additional cabling required
• On-board DC power jack (5.5*2.5mm) and Type-C socket convenient for power input
• More detail: https://wiki.geekworm.com/X728

Specifications

• Power supply via Type-C socket : 5Vdc ±5%, ≥3A, Via DC power jack : 5Vdc ±5%, ≥4A
• UPS output : 5.1V ±5% Max 6A
• UPS charging current: 2.3~3.2A
• Terminal Battery Voltage : 4.24V
• Recharge Threshold : 4.1V

Note:

• Do not apply power to your Raspberry Pi via the Micro USB socket or Type-C socket.
• Do not use 18650 battery with built-in protection circuit.

Packing List

Only X728 V2.5

• 1x X728 V2.5 Expansion Board
• 8x Screws M2.5 *5mm
• 4x Spacer M/F M2.5 *20mm
• 4x Spacer F/F M2.5 *20mm
• 1x Jumper link Pitch 2.54mm

Read Me: Different variants sells different items. Please refer to the product photo of the packing list of each variants.