Why Do Electrical Engineers love the X-Switch UPS Bypass?

This is a tutorial about your UPS Bypass Switch.  It's long!  To see the 3 minute video instead, just click here.

Most UPS people hate to touch their UPS Bypass Switch!  Instead of holding monthly or quarterly practice sessions like they should, they never touch their bypass switch if they can help it.  It's very emotional - you could blow up the UPS, drop the data center, and lose your job.  No one wants to do it! There's a great reason for their angst - UPS bypass switches are generally misleading, confusing, and dangerous.  No wonder people don't like them!

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Why do 10 year UPS batteries fail in 5 years?

Hold on!  Don't quit yet - there are real reasons for poor UPS battery life and new ways to get significant improvements!  All of us UPS experts have gotten way too used to having UPS batteries last only 50% of their design life.
To achieve long life, each battery has to be charged at the exactly perfect float voltage, within 15/100 of a volt (.15 V.)

Your UPS connects 30 to 40 batteries all in series, and charges them all with one single charger.  That would be OK if the batteries were all perfectly identical to each other, but they never are!  Some take a little overcharge, some take a little undercharge, and they all die much too soon!