We've made upgrading from lead-acid even simpler with the brand new Roamer 144SMART5. This ‘drop-in’ battery replacement packs 144Ah of lithium power and premium SMART5 features into the same low profile, group 49 case size found in many popular motorhomes. The 144SMART5 also comes with battery posts and screw terminals, giving you the option to upgrade your battery without changing any cables.