X1209

X1209 V1.0 Interface

X1209 V1.0 Display_01

X1209 V1.0 Display_02

X1209

How to Use the Pogo Pin

Battery Installation Instructions

How to Power

X1209 V1.0 Final Showcase with Battery Holder

Safety Instructions & warnings

• The default charging current is set to 2.1A and charge cut-off voltage is 4.23V. Before connecting your battery to the UPS board, Please carefully confirm the maximum charging current and voltage, exceeding the upper limit of the charging specification that the battery can withstand will not only cause adverse reactions, but may also cause irreversible damage.
• It is essential to read and understand these safety instructions and warnings before charging your batteries.
• Lithium Polymer and Li-ion batteries are volatile. Failure to read and follow the instructions below may result in fire, personal injury, and damage to property if charged or used improperly.
• Never make a wrong polarity connection when charging or discharging battery packs. Double-check the polarity of the battery's connector to ensure that "+" is connected to "+" and "-" is connected to "-".
• Do not mix and use old batteries with new batteries, or batteries with different brand names.
• Lithium batteries have a limited cycle life. Please replace old batteries with new ones when they reach their service life or when they are two years old, whichever comes first.
• When charging the Battery Pack, please place the battery in a fireproof container. Do not leave the UPS shield on wood material or carpet unattended.
• Keep the UPS shield away from children to ensure their safety.

Overview

The X1209 is a dedicated UPS expansion board for the Raspberry Pi, delivering reliable 5.1V/6000mA backup power to ensure uninterrupted operation. It is designed to support demanding setups, including those running intensive applications or multiple peripherals.

Its advanced power management system intelligently monitors the Raspberry Pi’s status, automatically cutting off power after shutdown to optimize battery life with ultra-low standby consumption. The board also features seamless power switching during outages or adapter failures, and supports convenient functions like auto power-on and AC power loss detection.

Additionally, the X1209 offers fast charging up to 2100mA for quick battery replenishment and integrates seamlessly with compatible storage products for reliable data backup during power loss. This combination of features enhances system reliability, protects valuable data, and ensures continuous operation for Raspberry Pi users.

 ▼ Expand 📋 Geekworm Raspberry Pi 5 UPS Family:

Caution:

*The Matching Case section only indicates compatibility between the case, UPS and Raspberry Pi 5 Board, and excludes products in the Product Matching Reference section. Compatibility of these referenced products with the case is subject to their actual specifications.

*In addition to voltage and current, ensure that the total power of the power supply meets or exceeds the recommended input power (Total Power = Voltage × Current).

Model	Compatible with	Mounting Position	Lithium battery type	Battery Holders	Power Input Connector	Power Output Connector	Matching Case	Product Matching Reference	Note
X1200	Raspberry Pi 5	Bottom	3.7V 18650 Battery	2-Cell	5V,≥5A via USB C of X1200	5Vdc Power Output XH2.54-2P x2	X1200-C1	PCIe to NVME: X1000 / X1001 / X1003 / X1004 / X1012 / X1015 Power Adapter: XS-GaN-27W / XSL-GaN-27W / HT-PD27W Accessories: DIY Spacer and Screw Kit, G341 (90° Right-Angle Bidirectional GPIO Extender), K182 (GPIO Extender Kit)	-
X1201	Raspberry Pi 5	Bottom	3.7V 18650 Battery	2-Cell	5V,≥5A via USB C of X1201 5V,≥5A via XH2.54-2P connector of X1201	5Vdc Power Output XH2.54-2P x3	X1201-C1	PCIe to NVME: X1000 / X1001 / X1003 / X1004 / X1012 / X1015 Power Adapter: XS-GaN-27W / XSL-GaN-27W / HT-PD27W Accessories: DIY Spacer and Screw Kit, G341 (90° Right-Angle Bidirectional GPIO Extender), K182 (GPIO Extender Kit)	Ultra-thin
X1202	Raspberry Pi 5	Bottom	3.7V 18650 Battery	4-Cell	5V,≥5A via USB C of X1202 6-18V,≥3A via DC 5521 power jack of X1202 6-18V,≥3A via XH2.54-2P connector of X1202	5Vdc Power Output XH2.54-2P x2	X1202-C1	PCIe to NVME: X1000 / X1001 / X1003 / X1004 / X1012 / X1015 Power Adapter: XS-GaN-27W / XSL-GaN-27W / HT-PD27W / PSU60 Accessories: DIY Spacer and Screw Kit, G341 (90° Right-Angle Bidirectional GPIO Extender), K182 (GPIO Extender Kit)	-
X1203	Raspberry Pi 5	Bottom	3.7V Lithium Battery	No battery holder(recommended to use with X12-A1)	5V,≥5A via USB C of X1203 6-18V,≥3A via DC 5521 power jack of X1203	5Vdc Power Output XH2.54-2P x2	-	PCIe to NVME: X1000 / X1001 / X1003 / X1004 / X1012 / X1015 Power Adapter: XS-GaN-27W / XSL-GaN-27W / HT-PD27W / PSU60 Accessories: X12-A1,DIY Spacer and Screw Kit, G341 (90° Right-Angle Bidirectional GPIO Extender), K182 (GPIO Extender Kit)	-
*X1205	Raspberry Pi 5	Bottom	3.7V 21700 Battery	2-Cell	5V,≥5A via USB C of X1205 9-18V,≥3A via DC 5521 power jack of X1205 9-18V,≥3A via XH2.54-2P connector of X1205	5Vdc Power Output XH2.54-2P x2	X1205-C1	PCIe to NVME: X1000 / X1001 / X1003 / X1004 / X1012 / X1015 Power Adapter: XS-GaN-27W / XSL-GaN-27W / HT-PD27W / PSU60 Accessories: DIY Spacer and Screw Kit, G341 (90° Right-Angle Bidirectional GPIO Extender), K182 (GPIO Extender Kit)	-
*X1206	Raspberry Pi 5	Bottom	3.7V 21700 Battery	4-Cell	V2.0 Version USB-C 5V,≥5A; DC5521 & XH2.54 9–18V ≥3A V1.1 Version USB-C 5V,≥5A; DC5521 & XH2.54 5–6V ≥5A	5Vdc Power Output XH2.54-2P x2	X1206-C1	PCIe to NVME: X1000 / X1001 / X1003 / X1004 / X1012 / X1015 Power Adapter: X1206 V1.1 Version: XS-GaN-27W / XSL-GaN-27W / HT-PD27W X1206 V2.0 Version: Geekworm 12 V / 5 A Power Adapter Accessories: DIY Spacer and Screw Kit, G341 (90° Right-Angle Bidirectional GPIO Extender), K182 (GPIO Extender Kit)	-
*X1207	Raspberry Pi 5	Top	3.7V 21700 Battery	1-Cell	5V,≥5A via USB C of X1207 35-57V powering over Ethernet	-	X1207-C1	PCIe to NVME: X1002 / X1005 Power Adapter: XS-GaN-27W / XSL-GaN-27W / HT-PD27W Accessories: DIY Spacer and Screw Kit, G341 (90° Right-Angle Bidirectional GPIO Extender), K182 (GPIO Extender Kit)	Support PoE-Powered
*X1208	Raspberry Pi 5	Top	3.7V 21700 Battery	1-Cell	5V,≥5A via USB C of X1208	-	X1207-C1	-	Support M.2 NVMe SSD 2230/2242/2280
*X1209	RPi 5B/4B/3B/3B+	Top	3.7V Lithium Battery	No battery holder(recommended to use with X12-A1)	5V,≥5A via USB C of X1209 6-18V,≥3A via DC 5521 power jack of X1209	5V Power Output XH2.54-2P x2	-	PCIe to NVME: X1002 / X1005 / X1011 Power Adapter: XS-GaN-27W / XSL-GaN-27W / HT-PD27W / PSU20 / PSU60 Accessories: X12-A1,DIY Spacer and Screw Kit, G341 (90° Right-Angle Bidirectional GPIO Extender), K182 (GPIO Extender Kit)	-
*X728	All RPi that use a 40-pin header	Top	3.7V 18650 Battery	2-Cell	5V,≥5A via USB C of X728 5V,≥5A via DC 5521 power jack of X728	5V Power Output The 40-pin header XH2.54-2P x2	-	PCIe to NVME: X1002 / X1005 / X1011 Power Adapter: XS-GaN-27W / XSL-GaN-27W / HT-PD27W / PSU20 Accessories: DIY Spacer and Screw Kit, G341 (90° Right-Angle Bidirectional GPIO Extender), K182 (GPIO Extender Kit)	-
*X-UPS1	All RPi & Most Single Board Computers (SBC) that uses 12Vdc or 5Vdc	Standalone	3.7V 18650 Battery	4-Cell	6-18V,≥3A via DC 5521 power jack of X-UPS1	5Vdc Power Output XH2.54-2P x2 12Vdc Power Output XH3.96-2P x2	-	GPIO Pin-connected standalone design, boasting universal compatibility Power Adapter: PSU60	-

Features

For use with	Raspberry Pi 5 Model B / 4 Model B / 3 Model B
Key Features	UPS Output Designed for continuous long-duration operation (duration depends on battery type and applications) Supports a maximum current output of 5.1V 6000mA, suitable for most Raspberry Pi applications Integrated Advanced Power MOSFET with an equivalent of 7mΩ RDS(ON) to minimize power loss Power the Pi directly through the 40-pin header, eliminating the need for cables and soldering Equipped with XH2.54 connectors for 5V power output Battery Charging Supports fast battery charging with a capacity of 2100mA Battery charging control can be managed via GPIO Provides protection against battery overcurrent and overvoltage Built-in protection against reverse connection of battery cells Integrated Maxim's fuel-gauge systems for reading battery voltage and percentage over i2c On-board LEDs indicate battery charging and discharging levels of 25%, 50%, 75%, and 100% Features two XH2.54 battery connectors Power Input Integrated high-efficiency step-down DC-DC converter Wide operating input range of 6V to 18V Provides up to 6A output current, enabling 2.1A fast charging while powering the system Allows power input from various sources such as a car, solder panel, and more Common power input jack size of 5.5x2.1mm Compatible with Raspberry Pi USB-C Power Supply Enhanced Power Management Seamless power switching between backup power and power adapter On-board push button performs the same actions as the Pi's power button (Pi 5 only) Automatically cuts off power when the Pi is shut down On-board LED indicates power status and Pi detection AC power loss and power adapter failure detection via GPIO Auto power-on when power is applied or restored Automatic safe shutdown when battery voltage is low (programmable) Ultra-low standby power consumption to maximize battery life Advanced system power-path management to minimize frequent charging and discharging of batteries Compatible Accessories X1002 single NVMe shield for Pi5 X1005 dual NVMe shield for Pi5 X1006 PCIe to SATA 2.5 HDD+M.2 SSD shield for Pi 5 X1007 PCIe to dual SATA 2.5 HDD/SSD shield for Pi 5 X1100 USB3 to SATA 2.5 HDD/SSD shield for Pi 5 Other add-on boards are attached to the bottom of the Raspberry Pi
Technical Specification	Power input: 6-18Vdc via DC jack (12Vdc ≥3A power adapter recommended) 5Vdc 5A via USB-C UPS output:5.1V ±5% Max 6A Battery charging current: 2.1A (IMPORTANT !!-- Please confirm before connecting your battery.) Terminal Battery Voltage: 4.23V (IMPORTANT !!-- Please confirm before connecting your battery.) Battery Recharge Threshold: 4.1V Battery: 3.7V Lithium Battery (IMPORTANT !!-- Only parallel connection is supported, please check polarity of battery's connector to make sure "+" to "+" and "-" to "-". Connecting batteries in series will cause the X1209 to burn out!) Ports & Connectors: DC power jack x1- 5.5x2.1mm USB-C power in connector x1 XH2.54 battery connector x2 5V Power output connector x2 - XH2.54 2-pin 40-pin extended GPIO header x1 PCB Size: 65mm x 57mm
Notes	Do not apply power to your Raspberry Pi via the USB C socket.

Packing List

• X1209 V1.0 UPS board x1
• Spacer M2.5 F/F 13.5mm x4
• Screw M2.5x5mm x8
• Pogo pin x1 (For use with Pi 5 only)

Script Reference

This section includes two types of script resources for debugging and adapting X120x series UPS HATs. Official scripts are factory-adapted basic versions, while open-source projects are for extended reference only. All scripts must undergo prototype testing before formal use to avoid compatibility risks.

Note: The content below is a brief summary only. Click the corresponding link for detailed script examples.

Official Scripts (Click Here)

1. Edit EEPROM Configuration
2. Configure I2C on Raspberry Pi
3. Read UPS Status
4. Manually Check Battery Voltage & Percentage
5. Test AC Power Loss Detection
6. Control Battery Charging (For Advanced Users Only)

Third-Party Extension

We sincerely appreciate the dedication and generous open-source contribution from the community user for these GitHub projects.

Please note: these are independent third-party resources, not developed, verified, or maintained by our official team. We share these links for reference only; please independently verify its compatibility with your specific device, system environment, and actual needs.

Extension 1(Click Here)

This repository hosts a community-developed x120x-dkms kernel driver for Raspberry Pi, designed for X120x series UPS HATs, with tentative experimental compatibility for X728, X729 and X708 models. It enables basic native Linux power supply integration (including simple battery status display, low-power shutdown, and optional battery longevity mode) with no extra custom scripts required.

Extension 2(Click Here)

This project supports intelligent automatic shutdown, battery overcharge protection, low-temperature delayed charging, systemd journal logging, JSON UPS status output, network-based real-time UPS status update, system service & manual running modes, battery temperature monitoring and automatic thermal cooling.

Matching Case

No matching case yet.

User Manual

• Hardware Installation: X1209 Hardware
• How to make it work: #Script Reference

FAQ

Q1: What types of batteries are compatible with the X1209 UPS board?

A: The X1209 is compatible with 3.7V-rated batteries, such as 18650, 21700, 4680, and similar types, as long as they have a full charge voltage of 4.2V.

The default charging current is set to 2.1A and the charge cut-off voltage is 4.23V. Before connecting your battery to the UPS board, please carefully confirm the maximum charging current and voltage; exceeding the upper limit of the charging specification that the battery can withstand will not only cause adverse reactions, but may also cause irreversible damage.

Q2: Is the X1209 compatible with Raspberry Pi Zero 2W?

A: Yes. The X1209 UPS board can work with Raspberry Pi Zero 2W according to the customer feedback.

However, the X1209 was originally designed for the standard Raspberry Pi 40-pin layout. When using it with the Raspberry Pi Zero 2W, you may need to connect it via jumper wires or use a suitable adapter/pin header to match the GPIO power pins.