Lithium battery power is taking over the RV and campervan world for a reason. Increased power densities mean more off grid time for you and less headache. These batteries can be run down to 20% state of charge time and time again without hurting your battery life. Don't try that with your standard AGM deep cell. You are good to cycle these without issue over 3000 times! Don't fret hooking them directly to your van's alternator either, this bad boy is internally regulated.