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UPS3-C1/C2 [0094A]


UPS2-C1 power IC hacking

UPS2-C1 project

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Uninterruptible power supply (and battery backup) designed specifically for the ODROID-C1/C1+/C2, and compatible with similar SBCs like Raspberry Pi and the Banana Series.

An Uninterruptible Power Supply is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails. The on-battery runtime of most uninterruptible power sources is relatively short, but in this case it is more than sufficient to start a standby power source or properly shut down the SBC. In our tests under a standard load, battery power was sufficient to keep the system running for approximately 90 minutes. Your results may vary.

It is equipped with a rechargeable 3,000mAh Lithium Polymer battery and a charging circuit with a booster IC for 5V output.

When the AC power source fails, the UPS3 keeps supplying the power to the SBC with the battery. There is a digital output pin to inform the SBC of a battery low-level warning which can trigger the shutdown process. Once the AC power source resumes, the UPS3 will supply power to the SBC again automatically. 


  • Installation Guide:
  • LiPo Battery (3000 mAh)
  • Power switch to turn off 5V output to SBC
  • 2.5A single-cell switching charger with power path
  • 2.4A system boost current
  • Allows clean shutdown or continual operation when main power is unavailable



  • LiPo Battery
  • Circuit Board
  • Spacers
  • Connector Wires



  • ODROID-C1/C1+/C2 not included
  • Some assembly required
  • Systems without a 2.5mm barrel connector will need to replace the 2.5mm power cable with a microUSB or other compatible power connector - an easy soldering task for most users.
  • 5V/2A power supply not included



Power Input
Dc Input VoltageDC 4.8~ 5.4V
DC Input Current2 A Maximum
Charging Time1hour 30min ~ 2 hours
Battery Charging Current2 A
Power Ouput
DC Output CurrentMax 2 A
DC Output Voltage5 V
Integrated Battery
Capacity3000 mAh
Nominal Voltage3.7 V
Battery Life400 charge/discharge cycles @ 20℃±5℃
Integated ProtectionOvercharge/discharge PCB
ODROID-C1+/C2 Estimated Running Time (typical load of 300mA @ 5V)about 2-4 hours with full battery charge