Custom X728 V2.1 UPS HAT& Power Management Board + Heatsink for Raspberry Pi 4B/3B+/3B Manufacturer
Custom X728 V2.1 UPS HAT& Power Management Board + Heatsink for Raspberry Pi 4B/3B+/3B Manufacturer
Custom X728 V2.1 UPS HAT& Power Management Board + Heatsink for Raspberry Pi 4B/3B+/3B Manufacturer
Custom X728 V2.1 UPS HAT& Power Management Board + Heatsink for Raspberry Pi 4B/3B+/3B Manufacturer
Custom X728 V2.1 UPS HAT& Power Management Board + Heatsink for Raspberry Pi 4B/3B+/3B Manufacturer
Custom X728 V2.1 UPS HAT& Power Management Board + Heatsink for Raspberry Pi 4B/3B+/3B Manufacturer
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Custom X728 V2.1 UPS HAT& Power Management Board + Heatsink for Raspberry Pi 4B/3B+/3B Manufacturer

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Note:

 
  • Not include Raspberry Pi board and 18650 battery ;

  • 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

X728 V2.1 is released at 26th Sep. 2021.

  • New add a buzzer controled by CPIO20

  • DC jack is changed from DC5525 to DC5521.

 

X728 V2.0 is released at Aug 2021.

 

1. Improve the power path function, the battery will only charge and not discharge when connected to the PSU.

2. You can choose to charge when boot up by short "CHG EN" and stop charging at shutdown.

3. Use ultra-low voltage MCU.

4. Increase battery overcharge, overdischarge protection circuit, added power input surge protection circuit.

5. Added power input connector, which can be used with X715 to achieve 6~60V wide voltage input.

6. PCB Size change: 87x63.7mm

 

Overview:

  • The X728 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 6000mA Power Backup for even the most demanding Raspberry Pi set ups, intelligent and safe power management, safe shutdown,AC power loss/ power adapter failure detection , auto power-on, full poweroff from software, and a real- time clock.

  • The X728 reserves the 40-pin header that can be stacked with other Raspberry Pi accessory boards for enhanced applications. The X728 can also be used with the X825/X828/X829 (2.5" HDD/SSD Shield) and X857/X862/X872 (MSATA/M.2 SSD shield) for safe data backup.

 

WiKi:

  • raspberrypiwiki.com/X728

 

 

SAFETY INSTRUCTIONS AND WARNINGS:

  • You must read these safety instructions and warnings before charging your batteries.

  • Lithium Polymer and Li-ion batteries are volatile. Failure to read and follow the below instructions may result in fire, personal injury and damage to property if charged or used improperly.

  • Never make wrong polarity connection when charging and discharging battery packs. Always double check polarity of battery's connector to make sure "+" to "+" and "-" to "-".

  • Do not mix and use old batteries and new batteries, or batteries with different brand names.

  • Lithium batteries has it's cycle life, please replace old battery with new one when it reaches it's service life or when it is two year old, whichever comes first.

  • When charging Battery Pack, please put battery in a fire proof container. Please don't leave the X728 on the wood material or carpet and unattended.

  • Must keep the X728 away from children.

 

 

FOR USE WITH:

  • Raspberry Pi 1 Model B+/ 2 Model B / 3 Model B / 3 Model B+ / 3 Model A+ / 4 Model B

 

OPERATING SYSTEM:

Raspbian Stretch

  • Safe shutdown function tested for Raspbian, other operating systems 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

  • Supports 3000mA fast battery charging

  • Integrated over current protection and over voltage protection

  • Integrated Maxim's fuel-gauge systems (Reading battery voltage and percentage via i2c)

  • Integrated 10-A fully-integrated synchronous boost converter

  • Intelligent automatic charging and discharging

  • On-board 4 green LEDs indicate battery charging and discharging levels of 25%, 50% , 75% and 100%

  • Intelligent and safe power management

  • Equipped with 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 safe shutdown

  • Press the button and hold for >8seconds to force shutdown

  • Supports safe shutdown and full poweroff through 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 detection)

  • On-board pin header allows to select auto power-on when power supplied

  • Ultra-low standby power consumption to maximize battery life

  • Operate in both charge mode and boost mode to allow full system management and battery power management

  • 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

  • Advanced system power-path management allows 3A fast charging and powering Raspberry Pi at the same time

  • 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

  • On-board PH2.0 connector allows to connect external power switch and DIY your perfect case

  • On-board XH2.54 power output connector allows to power other devices

  • Reserves the 40-pin header that can be stacked with other Raspberry Pi accessory boards

 

SPECIFICATION:

  • 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

 

Packing List:

 
  • X728 Expansion Board x 1

  • Screw M2.5 *5mm x 8

  • Spacer M/F M2.5 *20mm x 4

  • Spacer F/F M2.5 *20mm x 4

  • Jumper link Pitch 2.54mm x 1

  • P165-B Heatsink x 1 (with Screw pack)

  • Acrylic Plate x 1