I see this item on AliExpress : http://www.aliexpress.com/item/Portable ... 09945.html
What I think I need, is a kind of UPS, normally connected to 220v AC mains, preferably with multiple 5v 1A+ USB power outputs. Will this AliExpress device be fit for this purpose, or should I look for something different ? I would appreciate your pointers/links.
Now I use APC SmartUPS 1000, made in about 1998, with serial interface and apcupsd on Linux side.
Is there any way to get uninterruptible 5v DC out of it ? I don't need its output inverter, it will be only an additional efficiency loss in my setup.
Thanks in advance for your responses.