Im stuck between buying this yellow top optima battery
http://www.amazon.com/Optima-Batteries-8042-218-YellowTop-Purpose/dp/B00075OSDS/ref=sr_1_fkmr2_3?ie=UTF8&qid=1355693463&sr=8-3-fkmr2&keywords=yellow+cap+optima+battery

or this kinetik battery
http://www.amazon.com/Kinetik-HC1400-1400-Power-Battery/dp/B000LUBQ4S/ref=sr_1_7?s=automotive&ie=UTF8&qid=1355693623&sr= 1-7&keywords=kinetik+battery

Please do not recommend other batteries i am only interested in these two at the moment.
Running 2 10' pioneer 800rms each. Would a battery relay/isolator be required?