... This UPS works to connect the internal battery after a few minutes load as expected. The units may be the same going inserted, an extra electrical socket is not required. 4 x UPS protection + 4 items, overvoltage protection. Surge protection for data and communication line (analog or DSL) is specially still integrated. The software is, as usual at APC, quite mature (is on the protected computer to install) the then adjusted accordingly, shuts down during a power failure according to specifications. Test power failure was OK, with the ES 700 VA now also keep the Intel Quad Core, the DLS router, the switch and the phone together for a few minutes by. I had been several UPS (IT), the advantage of "cheap devices", that may be the battery later ordered as a spare part and replaced by hand.
