Overview
Our original intention of designing X708 is to match with NAS shell (such as X829-C1, X857-C1, X825-C7) to provide a storage solution with UPS function. In this way, we must separate the battery from the UPS expansion board when designing . This is also the biggest difference between X708 and X728;
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. 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.
- Please watch Main Video and Tutorial Video regarding 18650 batteries at: https://www.staysafebattery.com/en/
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
|
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.
- Do use the battery with built-in protection circuit
|
Packing List
- 1x X708 Expansion Board
- 8x M2.5 *5mm Screws
- 4x M2.5 *12+6mm Spacers
- 4x M2.5 *12mm Spacers
- 2x Jumper link Pitch 2.54mm
User Manual
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