The better batteries last 3-5 years. Do you think you might be getting a shorter life with yours because you're using the cheap batteries? Also,...
Original equipment batteries should be lasting between 3-5 years. However, the abuse they take shortens their life. If they don't get discharged...
That's a pretty straight forward set up. You might as well add your cable modem and router to the mix so you'll have internet when it goes down....
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