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X729
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[[File:X729-acce+size.jpg|thumb|right|X729V1.3]][[File:X729-size.jpg|thumb|right|X729 V1.3 Dimension]][[File:X729X728-Interface-Schematic.jpg|thumb|right|X729 V1.3 Interface Schematic]][[File:X729-IMG-4918-jumper.jpg|thumb|right|X729 V1.3 Jumper Cap Function]][[File:X729-IMG-4971.jpg|thumb|right|X729 V1.3 + OLED + External Momentary Switch]][[File:X729-Oled.jpg|thumb|right|X729]]
==Overview==
This X729 is an ultra-compact advanced uninterruptible power supply expansion board for all current models of the Raspberry Pi using a 40 pin header.
==For Use With==
* <span style="color:red;">Do not mix and use old batteries and new batteries, or batteries with different brand names.
* <span style="color:red;">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.
* <span style="color:red;">When charging Battery Pack, please put battery in a fire proof container. Please don't leave the X728 X729 on the wood material or carpet and unattended.
* <span style="color:red;">Must keep the X729 away from children.
* Please watch Main Video and Tutorial Video regarding 18650 batteries at: https://www.staysafebattery.com/en/
'''Power Input'''
* Integrated highefficiency stepdown DCDC converter
* '''Wide 6V to 24V operating input range'''
* Up to 95% Efficiency
* Up to 10A output current to keep 3A fast charging and powering Raspberry Pi at the same time
==Specification==
* '''Power input: 624Vdc ±5%6-24Vdc , ≥3A'''* '''UPS output : 5.1V ±5% Max 6A'''
* UPS charging current: 2.3~3.2A
* Terminal Battery Voltage : 4.24V
* Battery Recharge Threshold : 4.1V
==How to Power==
* Please use '''6-24''' power adapter with DC5521 jack to power via X729 DC port.
Important Note: Please use a <span style ="color: red>high quality power supply with surge protection and overvoltage protection!!!</span> Otherwise it is easy to burn the DC chip!
Recommend to use [[PSU60 | Geekworm DC5521 12V/5A Power adapter US/EU plug]]
<span class="tb_red ">Warning about power supply:</span>
# Don't use that adjustable voltage power supply.
# Don't use the same power supply used on LED strips.
The above two are absolute garbage power supply, can not be used!!!
==Match Metal Case==
There is no match metal case for X729 now!
==Packing List==
* 1 x X729 V1.3 UPS Shield
* 2x 2 x Jumper link Pitch 2.54mm* 5x 5 x M2.5 *4mm Screws* 4x 4 x M2.5 *7+6mm Spacers* 4x 4 x M2.5 *12mm Spacers* 1x 1 x M2.5 *20mm Spacers
==User Manual==
* [[X729-hardware]]: Provides some hardware parameter information
* [[X729-Software]]: This script is required to install to enable safe shutdown function.
==PCB dimention==
X729 Dimensions source file (DXF): [[File:X729-PCB-v1.dxf]] - You can view it with Autodesk Viewer online
==FAQ==
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Q: Can X829 extend X728-A2 (2 cells) / X708-A1(8 cells) battery holder?
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A: YES. You can connect X708-A1 / X728-A2 battery holder via [BAT: XH2.54 Port to External Battery] of X729 board. But please pay attention to the correct wiring method, if it is reversed, it will burn the X729.
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Q: Does the X729 support SSD1327 OLED Display or LCD 12864?
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A: A: NO, the X729 does not support SSD1327 OLED Display or LCD 12864, only support ssd1306 OLED.
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