If you're giving a 12vdc batt a lot of heavy use, what you linked won't be a good replacement. A deep cycle marine batt would be better and give both longer and better service. I know some plane guys that fly a lot and they've tried something similar to that on a lark and it didn't hold up long.

If you're only using one accassionally, it might work out. That power center is intended for occassional use. Steady use - they don't seem too last long.

There's a lot of purpose built PS out there. I use a 20a ProPeak and a 12a Victor - the ProPeak will run both my Ice and 0610i chargers easily though.