Changes

===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===

<span style="color:red;font-weight:bold">X728 18650 UPS + Power management board</span>

* 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

* 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

* 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 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

<span style="color:red;font-weight:bold">X728-A1 Optional Raspberry Pi cooling fan</span>

* Completely solve the overheating problem of your Raspberry Pi

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

<span style="color:red;font-weight:bold">X728-A2 Optional 18650 2-Cell battery holder</span>

* Stackable 18650 two cells lithium Ion holder

* <span style="color:red;font-weight:bold">Do not apply power to your Raspberry Pi via the Micro USB socket or Type-C socket.

* <span style="color:red;font-weight:bold">Do not use 18650 battery with built-in protection circuit

==Packing List==

* Spacer F/F M2.5 *20mm x 4

* Jumper link Pitch 2.54mm x 3

==Document==

==FAQ==