Hyup - as I have stated several times previously, here and abroad - surge protectors are pretty damned useless. Battery UPS DOES 'surge protection' properly.
The common 'surge' protectors can actually AMPLIFY certain spikes - they are, after all, RLC circuits, and, like all RLC circuits, they have tuning spikes in their responses - ie. frequency dependent responses.
Battery UPS is far, far more stable. Some argue it is because of the huge 'capacitance' value that batteries have (that from electrical engineers) - and they have a valid point on that issue.

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