Raspberry Pi Expansion Board

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X708 Power Mgt + UPS HAT

Hardware

PRODUCT OVERVIEW

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 8000mA 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 cooling fan. The X708 reserves the 40-pin header that can be stacked with other Raspberry Pi accessory boards for enhanced applications. The X708 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.

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 X708 on the wood material or carpet and unattended.
·	Must keep the X708 away from children.

PRODUCT FEATURES

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 8000mA Power Backup for even the most demanding RPi set ups
-	Supports 2A/3A 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
-	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
-	Advanced system power-path management 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 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 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 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

	Misc
-	Powers the Raspberry Pi via the 40-pin header - no additional cabling required
-	Standard Raspberry Pi extension interface, compatible with other expansion boards
-	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
-	Mounting holes and standoffs provide mechanical stability of the Raspberry Pi and X708 assembly

	X708-A1 Optional 18650 8-Cell battery holder
-	Stackable 18650 8 cells lithium Ion holder
-	Ideal solution to increase battery capacity
-	Integrated battery protection circuit
-	Mounting holes and standoffs provide mechanical stability of the Raspberry Pi, X708 and X708-A1 assembly

	X728-A2 Optional 18650 2-Cell battery holder
-	Stackable 18650 two cells lithium Ion holder
-	Ideal solution to increase battery capacity
-	Integrated battery protection circuit
-	Mounting holes and standoffs provide mechanical stability of the Raspberry Pi, X728 and X728-A2 assembly

SPECIFICATION


-	Power supply via Type-C socket : 5Vdc ±5%, ≥3A
	Via 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: 3.7 Lithium Battery

NOTES


-	Do not apply power to your Raspberry Pi via the Micro USB socket or Type-C socket.

Box Contents

	X708
-	UPS expansion Board	x 1
-	*Screw M2.5 5mm**	x 8
-	*Hex brass spacer M/F M2.5 20mm**	x 4
-	*Hex brass spacer F/F M2.5 20mm**	x 4
-	Jumper link Pitch 2.54mm	x 2

	X728-A2
-	2-cell battery holder board	x 1
-	*Hex brass spacer M/F M2.5 23mm**	x 4
-	XH2.54-2P power cable	x 1

	X708-A1
-	8-cell battery holder board	x 1
-	*Screw M2.5 5mm**	x 4
-	*Spacer M/F M2.5 23mm**	x 4
-	*Spacer M/F M2.5 22mm**	x 2
-	*Spacer F/F M2.5 22mm**	x 2

Optional Accessories

	Power Supply Unit
	-	AC 100 - 240V input
	-	5Vdc 4A output
	-	W/ EU and US plug
	-	*5.52.5 DC plug**
	-	1.2M cable w/ magnet ring
	See details