Optima proved that they make an outstanding battery. They put one new random typical production battery through the most extreme events they could find, King of the Hammers, Moab Easter Safari, Nürburgring, Pikes Peak, Demolition Derby, Tractor Pull, Speed Boat Race and then lastly, in the Thompson Challenger II at Bonneville

that is the overall video, the rest are specific to each event, so skip the first 10 seconds of intro on each of the next videos

How do I know that battery went through all those events, and then went into the Challenger 2?

Because here are Mr and Mrs Danny Thompson and the Challenger 2 and that battery, in front of my camera at SEMA!

http://justacarguy.blogspot.com/2017/11/during-sema-you-could-stop-by-optima.html
https://www.optimabatteries.com/en-us/experience/2017/10/one-battery-series-ultimate-torture-tests