I have a great deal of experience with lithium batteries from my radio control hobby. Yes they are great, but not designed for scooters, atvs etc. If you live in a warm climate year roundvthen thats better, but lipo batteries do not do well in cold weather!! And yes special charging equipment is a must!! If the wrong charger is used they will ignite and can explode!! They burn white hot and can burn thru most anything. Can be a bomb in case of an accident! No trying to scare everybody away, but special care is needed for lipos, a mistake can be costly. AGM are the safest way to go for road vehicles, less maintence and more forgiving if a mistake is made..Lipos are also expensive, need special chargers, need special care, and give poor performance in cold weather.