no memory effect, rechargeable, longer battery life 3.
internal protection circuit: overload, over discharge, over current, short circuit protection 5. safer, more environmentally friendly, of heavy metals and harmful substances. Liitokala 36V 42V 48V 54. life cycle: more than 1000 times, good quality application: electric vehicles, model airplanes, power tools, battery pack diy, golf carts, sightseeing vehicles, electric motorcycles, electric bicycles, electric wheelchairs, etc.