UPS runtime
On Wednesday, April 1, 2020 at 3:08:08 AM UTC-5, R.Wieser wrote:
Andy,
I did a search, but found conflicting formulas.
12 volt
18 Ah
Neither is a formule, just some numbers. Just for the record, next time
please include those formulas. They simply might include factors that are
outside of a quick calculation (which we could than point out to you).
But, onto the quick calculation:
12 volt times 18 Ah = 216 watt-hour.
216 watt-hour divided by 200 watts = a few minutes more than an hour
Than again, that ignores any kind of conversion losses, the fact that when
the battery goes near empty its voltage will drop (possibly causing the UPS
to cut out early), and that VA's are not the same as watts. YMMV.
Regards,
Rudy Wieser
Thanks.
Andy
|