whats everyone doing for car batteries these days??

Someone should make a modular rebuildable battery: lead plates, zinc plates and add acid. Make slots in the case like slots in an old computer chassis and just slide the new plates in. Continuity test before you throw it on the charger, add acid and charge. Recycle the acid and the old plates. They rebuild batteries in Pakistan and put the vids on youtube..their soldering iron is just that an iron shape that they place in hot coals.