i have a 500va apc ups but it stop working now so i want to purches a ups which is better for me. so i have 1000w cooler master psu, i5 760 processor 3.4 ghz. nvidia geforce gtx 560 ti 1 gb graphic card, 4 gb ram, asus p7h55-mlx motherboard, cooler master haf 922 cpu. so help me choose a better ups for me.
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how long do you wish to run on battery? runtime is related to cost. the longer you want to run the more it costs.