I don't know how to do it, but there is a bit of real life number you may need
to look at.
an APC 280W UPS can hold a typical system for 10-15 mins. on a full-tower
machine (P3-450 I think) with basic graphics, NIC, SCSI, one harddisk, 15"
monitor.
Jun Qian
Bharat Ale wrote:
> PCBUILD Digest - 28 Apr 2000 to 29 Apr 2000 (#2000-121)Hi again,
>
> I am thinking of getting a UPS that will take external batteires. I'd like
> to calculate how long a 40 watt 12 VDC battery holds a typical computer
> system (PII with colour monitor) and cosequently calculate how many
> batteries to keep for each hour I intend to increase. How do I calculate all
> this ?
>
> TIA
>
> Bharat
>
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