Many of the computers that we service are plugged in to a power strip with a surge suppressor. While a battery back up unit is the best form of surge protection, a surge protected power strip is also better than a power strip without surge protection. But did you know that the surge protection can actually wear out? On average, you should replace your surge protectors about every 2-3 years.
A brick wall will eventually crumble if it is hit with a hammer day in and day out, and similarly your surge suppressors protection eventually crumbles. Every day your surge protector gets hit with little spikes and surges in power. Over time, these little surges will break down the wall of protection you are receiving.
A good surge protected power strip should cost you about $30, and it is one of the best investments you can make in terms of helping to extend the life of your computer.