I need to buy two more units. Upon doing a lot of research, I've come to realize that APC's are not the best choice as there seems to be something better. (According to numerous detailed write ups by electricians.) Bottom line: "Not all power is created equal." Therefore, the unit that seems promising with "clean" power looks to be the: CyberPower CP1500PFCLCD PFC Sinewave UPS 1500VA 900W PFC Compatible Mini-Tower Can someone (hopefully there are electricians in here) confirm if this unit is indeed the best unit to buy around the ~$200 price range? I'm willing to spend more... Fellow Electricians are these true/false? Keep the VA under 70% of the capacity of the unit. So for the unit above keep it under 1050VA. Correct? There's really no such thing as a back up UPC being able to generate a True PURE Sinewave, however, the high end units like the one above does such a good job of taking DC and making a good enough AC for it to be more than adequate for our Macs. HD's etc... True? Daisy Chaining: (What's the official scoop on doing this?) * I've read that it can void the warranty of the Backup Battery Unit? The CyberPower 1500VA Unit above has 5 Battery "Backup & Surge Protected Outlets" + 5 "Surged Protected ONLY Outlets." Would it be safe to plug in my Belkin 12 Outlet (3940 Joules) Surge protector into one of the 5 (Backup+Surge Protected) plugs? The components plugged in would be very light gadgets like my phone chargers, led lamp, etc...Being careful not to overload it. -Or- Could I plug in something smaller like a 6 Outlet (1080 Joule) unit into one of the Battery + Surge outlets? Here's what my set up would look like: Battery + Surge Protected Outlets: rMBP Power Cord NAS Unit (WD My Cloud 4-Bay DL4100 Model) WD 5TB External Hard Drive (Primary) Samsung 4K Monitor Logitech 5.1 Surround Sound Additional gadgets I'd like to plug into the Battery + Surge Protected Outlets, hence the reason for the daisy question above. Smartphone #1 Charger Smartphone #2 Charger NAS Unit Power Cord #2 (The NAS has a 2nd power plug on the back next to the primary.) Router Modem External HD #2 Surged Protected (Only) Outlets: Battery Bank Charger LED Lamp External DVD Player/Burner Router? Modem? Any help on this from anyone would be greatly appreciated. Cheers!