X306 is a one cell 18650 UPS shield designed for Raspberry Pi Zero W / 2W.
It equipped with 3 standard USB-A 2.0 ports, and a USB Type C to power. The USB-A port can be used to connect external devices such as mouse, keyboard etc.
Do not connect any device to the Micro USB, OTG port of Raspberry Pi Zero 2W when use with X306, or the USB2.0 ports of X306 is not available to use.
'''Note:'''
* BOOKWORM does not require any setup and can be used directly with a keyboard and mouse.
* The Raspberry Pi board, power adapter are not included in the packing list.
* <span style="color:red;">Raspberry pi micro OTG port cannot be used as it is occupied by USB HUB</span> of X306
* <span style="color:red;">Do not connect any device to the Micro USB, OTG port of Raspberry Pi Zero 2W when use with X306, or the USB2.0 ports of X306 is not available to use.
[[File:IMG-4294-diagram-1.jpg|border|700px|none]]
'''<span style="color:red;">4 Pin header function description:</span>'''
{| class="wikitable"
! Pin !! Function
|-
! AL ON: Pin 1&2
| Short: Power always on, power button disabled;
|-
! AL ON: Pin 1&2
| Open: Power button Press to switch on, Hold 3 seconds to switch off
|-
! PWR SW: Pin 3&4
| for external 2-pin momentary switch
|}
"AL ON" enable, "PWR SW" will be disable.
"PWR SW" enable, "AL ON" will be disable.
==Features==
* Ideal Uninterruptible Power Supply (UPS) solution for Raspberry Pi Zero W/2W
* Max 5.1V 4000mA Power Backup for even the most demanding Raspberry Pi set ups
A: It is 5V, all ports share 4A, not limited to 500mA.
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<div class="toccolours mw-collapsible mw-collapsed"><div style=User Manual="font-weight:bold;line-height:1.0;">Q3. Is there any way I can check from the raspberry pi if it's connected to the power or the battery from the UPS? </div><div class="mw-collapsible-content">A: When connected to the power supply to X306, the power supply supplies power to the Raspberry Pi; remove the power supply, it is powered by the battery.</div></div>