get a kill-a-watt or lacrosse power monitor for $30 and leave it running for a few days. then you can sort throw the data and know what your power draw really is......
On 5/31/05, Andrew Kohlsmith <[EMAIL PROTECTED]> wrote: > On Tuesday 31 May 2005 10:50, Daryl G. Jurbala wrote: > > Kids....do NOT try this at home. The inverters in small UPSes are not > > designed to deal with runtimes that exceed the batteries in them. If > > you run this setup well past the time it was designed to run (by adding > > 3, 4, or more times that battery capacity it was ever designed to have) > > that chances of a catastrophic inverter failure (meaning flash, boom, > > fire) are very real and very likely. > > Not to mention that the charging circuitry on a lot of UPSes is *not* smart; > you hook up a bunch of lead-acid car batteries and the UPS may try to charge > them a lot faster than the circuitry is capable of handling... You can get > around it with some other tricks but really -- what's your time worth, what's > the venting for the car batteries gonna cost you, what's the additional > circuitry gonna cost... really. Get a proper UPS for the job. > > And yes, I am an electrical engineer. Industrial power electronics, to be > exact. :-) > > -A. > _______________________________________________ > Asterisk-Users mailing list > [email protected] > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > -- <sig> Andrew Latham - AKA: LATHAMA (lay-th-ham-eh) WWW: http://lathama.com Email: [EMAIL PROTECTED] - [EMAIL PROTECTED] - [EMAIL PROTECTED] If any of the above are down we have bigger problems than my email! </sig> _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
