by mrbill
Now many people are aware of an advance technology i.e UPS, also referred as uninterruptible power supplies. However, some people are still don't know about its usage and benefits, therefore here is some general information about uninterruptible power supplies and how they work.
An uninterruptible power supply is a system that supplies electric power to device when suddenly the electricity fails. You can call it as backup batteries. But uninterruptible power supplies are unlike
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