The SupTronicsX1201 is a UPS (Uninterruptible Power Supply) expansion board for Raspberry Pi 5, with support for two18650 cells(batteries not included), designed to deliver reliable backup power and improved power management.
It provides 5.1V 5A output, keeping your Raspberry Pi running during outages or adapter failure. The onboard power management system detects when the Pi has shut down and automatically cuts power, helping extend battery life by switching to ultra-low standby mode.
The board also supports automatic power switching, detecting adapter faults or AC loss and switching to battery backup instantly. Once power is restored, it can automatically boot the Raspberry Pi without manual intervention. Safe shutdown via software is supported too.
Charging is fast, powered by the USB-C input (use your existing 27W Raspberry Pi Power Supply), with support for up to 3A input. An optional XH2.54 5V input is also provided, along with 3x XH2.54 5V outputs. The X1201 mounts beneath the Raspberry Pi and doesn't block the 40-pin header, making it easy to use alongside HATs, coolers and other accessories.
It’s compatible with top-mounted SupTronics storage add-ons for keeping data safe during unexpected power loss.
Raspberry Pi, 18650 batteries and power supply not included.
Safety Warning
Lithium Polymer (LiPo) and Li-ion batteries are volatile by nature. Failure to follow the safety instructions below may result in fire, personal injury, or property damage.
Never connect the battery with incorrect polarity when charging or discharging. Always double-check that the battery connector's "+" is connected to "+" and "−" to "−".
Do not mix old batteries with new ones, or use batteries from different brands together.
Do not use 18650 batteries with built-in protection circuits
Lithium batteries have a limited cycle life. Replace them when they reach the end of their service life, or after two years — whichever comes first.
When charging the battery pack, always place it in a fireproof container. Do not leave the UPS shield unattended on flammable surfaces such as wood or carpet.
Keep the UPS add-on out of reach of children.
Features
Compatibility
Designed for Raspberry Pi 5
UPS Output
Supports up to 5.1V 5A output
Integrated advanced power MOSFET with 7mΩ RDS(ON) for reduced power loss
Uses pogo pin connection – no cabling or soldering required
3x XH2.54 5V outputs
Battery Charging
Fast charging supported up to 3A
Charge control via GPIO
Overcurrent and overvoltage protection
Reverse battery connection protection
Integrated Maxim fuel-gauge IC for voltage and battery level over I²C
LEDs show charge/discharge levels at 25%, 50%, 75%, and 100%
2-cell 18650 battery holder
Power Input
Powered via USB-C (Raspberry Pi 27W PSU recommended)
XH2.54 connector available for alternative 5V power input
Enhanced Power Management
Seamless switching between mains and battery backup
On-board push button mirrors Raspberry Pi power button
Automatic power cut-off when Pi is shut down
Power and Pi status LED indicator
AC power loss and adapter failure detection via GPIO
Auto power-on when power is restored
Programmable low-voltage shutdown for battery protection
Ultra-low standby current to maximise battery life
System power-path management minimises unnecessary battery cycling
Additional Features
Connects via pogo pins – no extra cables required
Mounts to the underside of the Raspberry Pi
XH2.54 header available for connecting a custom power button
Specifications
Power input: 5V DC 5A via USB Type-C or XH2.54-2P connector
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