1500VA Battery Backup

[babadoctor]

How can I calculate how long this will last my desktop pc?  it has a 650W PSU

Let's say the PSU is under load 100% of the time that this backup battery is in use, does anyone know how long it will last?

 

https://www.amazon.com/APC-Back-UPS-Battery-Protector-BR1500G/dp/B003Y24DEU

and does anyone know how long will the 99$ one last too?

https://www.amazon.com/APC-Back-UPS-Battery-Protector-BR1500G/dp/B002RCNX8K?th=1

[W-L]

3 minutes ago, babadoctor said:

How can I calculate how long this will last my desktop pc?  it has a 650W PSU

Let's say the PSU is under load 100% of the time that this backup battery is in use, does anyone know how long it will last?

 

https://www.amazon.com/APC-Back-UPS-Battery-Protector-BR1500G/dp/B003Y24DEU

and does anyone know how long will the 99$ one last too?

https://www.amazon.com/APC-Back-UPS-Battery-Protector-BR1500G/dp/B002RCNX8K?th=1

On their site they have runtime graphs and details for the duration depending on the load, most at max load will only last a few mins. 

http://www.apc.com/products/runtimegraph/runtime_graph.cfm?base_sku=BR1500G&chartSize=large

[babadoctor]

2 minutes ago, W-L said:

On their site they have runtime graphs and details for the duration depending on the load, most at max load will only last a few mins. 

http://www.apc.com/products/runtimegraph/runtime_graph.cfm?base_sku=BR1500G&chartSize=large

It didn't load

 

But thanks!