My raspberry always flashes the lightning icon and there's a warning a saying that. Is it okay to use my Raspberry pi on that condition? Can it damage the raspberry? I don't have an official power supply I currently use my phone charger

3 Answers 3


Actual hardware damage is very unlikely. The real risk is data loss: you can't trust your system to store data reliably, be it on the SD card, or an external storage such as USB thumb drives.

It's probably not a big problem if you just want to learn a bit of Linux. The moment you try to use the Pi in an actual project, it becomes a problem. You'll likely have strange unexpected failures no one else has (so not solvable by a Google search), which can waste a lot of your time.


It depends how low the voltage falls.

The Pi itself runs on lower voltages generated by an on-board regulator so should be OK. Peripherals may have problems.


You should use minimum of 2A adapter for pi3 & 4, Low voltages cause some of processor intensive tasks to be halted, which may not be desired.

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