i bet LOLi did a test with a 2400 max amps pm battery vs a 3 year old kinetik 1400. i didnt get "louder" nor sound better and the pm died faster (smaller capacity which was expected) and its voltage dropped .25 volts overnight after a charge..i am interested to test out a 5100 vs my 1400..just find it funny how a 1400 "rated watt" battery can actually run more than its rating in my big 3, stock alt where as a "bigger max amp" battery rated to do 1000 watts more hit the skids sooner than expected. if i was ever going to hook up 2400 watts too it i would have at least a 220 amp alt. my 1400 as the primary battery with a stock alt has powered as much as 1600 watts (rated) without flinching...go a bigger alt (which i have just not installed) i bet it could handle 2000+ watts without issue:laugh: