Lithium verses lead acid batteries? Which should I choose on these massively different motorcycles?

Experienced biker of more than 50 years who has always chosen the style of battery a motorcycle comes with when they need replacing considers whether a lithium or lead acid AGM battery is better for his 114 cubic inch v-twin Harley Davidson Heritage Softail Classic and single cylinder Suzuki Address 110cc scooter. #motorbike #motorbikes #motorcycles #motorcycling #motorcycle #battery