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X703
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[[File:X703-04.jpg|thumb|right|X703]]
[[File:X703-05.jpg|thumb|right|X703 V1.2 Function Header-New]]
[[File:IMG-0233-4Pin Function Header.jpg|thumb|right|X703 Function Header-Old]]
[[File:X703-03.jpg|thumb|right|X703 Interface]]
[[File:X703-07.jpg|thumb|right|X703 V1.2 Dimensions-New]]
[[File:X703-02.jpg|thumb|right|X703 Dimensions]]
[[File:X703-06.jpg|thumb|X703 V1.2 Packing List-New]][[File:X703-01.jpg|thumb|right|X703 Packing List-old]] ==Update History==<span style="color:red;"> NOTE: The X708, X703 UPS does not support Raspberry Pi 5. In July 8th 2022, the X703 V1.2 UPS has done a small update,the "AON" Pin has been updated to "PON" Pin, also the pcb components position will be a little difference. Please refer to the below photo: [[File:X703-New&Old-2000x1000.jpg|700px|none|X703]]
==Note==
* Do not apply power to your Raspberry Pi 4 via the Type-C socket.
* Please use high quality power supply, the low quality power supply will generate surge Voltage, which will damage the board chip. we recommend Panasonic brand NCR18650BD 18650 lithium battery.
* Only the on-board switch If 【CHG】 pin is pressed to charge the 18650 OPEN, battery if charging will be started after powering on and stopped after powering off. If 【CHG】 pin is shortenSHORT, or the battery will be automatically charged automatically after being powered ononce your power adapter connected.* Do not short the"AON" pin.
* Be sure to power off & remove the 18650 battery then wait for 2 seconds when toggle charging mode
==Overview==
The X703 is a new design UPS board which is specially designed for Raspberry Pi 4 Model B only. It provides an advanced uninterruptible power supply and power. The X703 adds 4 test pins to achieve powered between X703 and Raspberry Pi 4 without additional cable.
==Safety Instructions and Warnings==
You must read these safety instructions and warnings before charging your batteries.
* <span style="color:red;">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.
* <span style="color:red;">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 "-".
* <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 X703 on the wood material or carpet and unattended.
* <span style="color:red;">Must keep the X703 away from children.
* Please watch Main Video and Tutorial Video regarding 18650 batteries at: https://www.staysafebattery.com/en/
==Features==
* On-board 2-Pin PH2.0 connector allows to connect external power switch
* DON'T supports software safe shutdown.
==Specifications==
* Power supply via Type-C socket: 5Vdc ±5%, ≥3A;
* UPS output: 5.1V ±5% Max 3A
* UPS charging current: 1A
* Terminal Battery Voltage: 4.2V
* Recharge Threshold: 4.1V
==Packing List==
==User Manual==
18650 battery dimension
[[File:18650size.png]]
<span style="color:red;">Do not use 18650 battery with built-in protection circuit</span>
==FAQ==
Q1: Will X703 UPS work with the rpi poe hat?
A:No, the X703 UPS does not support rpi poe hat.
Q2: Why CHG light is not light up when external power supply is connected?
# The X703 UPS does not discharge when charging. Therefore, when external power adapter is used, raspberry pi is powered by the power adapter instead of UPS.
# When remove the external power adapter, raspberry pi will be powered by the battery, which can avoid frequent battery charging and discharging.
# Please make sure that the power adapter used is ≥3A, and always short the CHG , so that it can be automatically charged when an external power supply is connected.