10 PSU Power supply problems

10 Power supply problems
A power surge or spike can crash a computer as easily as a power cut.

If this has become a nuisance for you then consider buying a uninterrupted power supply (UPS). This will give you a clean power supply when there is electricity, and it will give you a few minutes to perform a controlled shutdown in case of a power cut.

It is a good investment if your data are critical, because a power cut will cause any unsaved data to be lost.
if you are using a Laptop computer, you are already have a similar setup build in, it runs off electricity so you can avoid data lost like ups.laptops power supply aka Brick will cut off but battery will pick the power and go on.