What capacity battery should i needed for the UPS to give 10 minutes back-up time

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danishdeshmuk

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What capacity battery should i needed for the UPS to give 10 minutes back-up time ?

The load is about PC and its related accessories and its about 5 Amps . The input is 220 V

There's a Router who has rating of : 9 v AC & 1 A
CRT Monitor : 100 V - 240 V & 1.3 A - 0.6 A
Pentium IV , Intel D 865 G, ATX P4 - 450 Watts (power supply) , Hp Laserjet 4200n Printer

Calculate the total load & capacity of the battery required to provide 10 to 15 minutes back-up time ?

thanks
 

for 10 minutes back up time all UPS available in the market are supplied with a 12V 7AH battery
EDIT: printer is not considered to be run on UPS
 
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Hi danish,
What is the wattage of your UPS?
For the same load you need a 25AH battery for a safe 15 minutes back up of that load.
As you said that the load is about 5 amps at 200 volts, if you simply calculate the wattage it goes to 220x5=1100 watts.
I have almost same set up (only LCD display instead of a CRT monitor) and my 80 AH battery works almost for 1 hour if I do not use Printer (Panasonic Laser Jet KX-P7110).
Hope it helps.
 

tipu electronics said:
for 10 minutes back up time all UPS available in the market are supplied with a 12V 7AH battery
Click to expand...

How did you calculate this ?

I think 7 AH battery won't be enough for this much load , i think 13 to 14 AH battery would be enough but i am not so sure.

Please confirm me or correct me kindly, show me the calculations
 

give details of individual power in watts.
(no detail for printer in your post)
 

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