I've been trying to decide which battery back up ups to buy. I've pretty much decided on an APC, but there are lots of different models. The one I'm considering has 8 outlets, 4 of which are for the battery back up.
I know the amount of battery time depends on the load, and the monitor seems to have a lot to do with that. My question is, how do you determine how much time (approx) you would be allowed if you have 2 computers running off one APC?
The one I liked at Office Depot has specs similar to this
Product Overview
Description APC Back-UPS, 500VA/315W, Input 120V/ Output 120V, Interface Port USB
General Features Addl Surge Protected Outlets , Audible Alarms , Automatic Voltage Regulation (AVR) , Hot Swap Batteries , Intelligent Battery Management , Internet Ready: Protection for Fax/Modem Connection , Lightning and Surge Protection , Overload Indicator , Replace Batt Indicator , Site wiring fault indicator , Software , Transformer Block Spacing , USB compatible , Easy Overload Recovery
Includes CD with software , User Manual , USB cable , Velcro Cord Management Straps
Documentation User Manual
Technical Specifications
Output
Output power capacity 500 VA
Output power capacity 315 Watts
Nominal output voltage 120 V
Waveform type Stepped approximation to a sinewave
Output Connections (4)NEMA 5-15R
(3)NEMA 5-15R (Surge)
Input
Nominal input voltage 120 V
Input frequency 50/60 Hz +/- 3 Hz (auto sensing)
Input Connection Type NEMA 5-15P
Cord Length 6 feet
Input voltage range
for main operations 93 -130 V
It's $149.00, I think....and instead of 9.7 min of run time, it offers 30 minutes based on one 15" monitor. If I have 2 systems on it would that just cut the runtime in half? Or would they overload it, defeating the purpose of having the damn thing?
I have two 1GB t-birds, one with a 300W PSU and one with a 400W PSU and 2 15" monitors.
Anybody have any idea or experience with this? I tried to email the company through their website because I couldn't find any info on it there, but the email wouln't work.

I know the amount of battery time depends on the load, and the monitor seems to have a lot to do with that. My question is, how do you determine how much time (approx) you would be allowed if you have 2 computers running off one APC?
The one I liked at Office Depot has specs similar to this
Product Overview
Description APC Back-UPS, 500VA/315W, Input 120V/ Output 120V, Interface Port USB
General Features Addl Surge Protected Outlets , Audible Alarms , Automatic Voltage Regulation (AVR) , Hot Swap Batteries , Intelligent Battery Management , Internet Ready: Protection for Fax/Modem Connection , Lightning and Surge Protection , Overload Indicator , Replace Batt Indicator , Site wiring fault indicator , Software , Transformer Block Spacing , USB compatible , Easy Overload Recovery
Includes CD with software , User Manual , USB cable , Velcro Cord Management Straps
Documentation User Manual
Technical Specifications
Output
Output power capacity 500 VA
Output power capacity 315 Watts
Nominal output voltage 120 V
Waveform type Stepped approximation to a sinewave
Output Connections (4)NEMA 5-15R
(3)NEMA 5-15R (Surge)
Input
Nominal input voltage 120 V
Input frequency 50/60 Hz +/- 3 Hz (auto sensing)
Input Connection Type NEMA 5-15P
Cord Length 6 feet
Input voltage range
for main operations 93 -130 V
It's $149.00, I think....and instead of 9.7 min of run time, it offers 30 minutes based on one 15" monitor. If I have 2 systems on it would that just cut the runtime in half? Or would they overload it, defeating the purpose of having the damn thing?
I have two 1GB t-birds, one with a 300W PSU and one with a 400W PSU and 2 15" monitors.
Anybody have any idea or experience with this? I tried to email the company through their website because I couldn't find any info on it there, but the email wouln't work.
