Introducing Yunfan's 12V 50Ah Lithium Ion Motorcycle Battery, designed for reliable engine starting and long cycle life of up to 5000 times, featuring a nominal voltage of 12.8V, weighing only 5.2kg, and IP55 waterproof rating, perfect for motorcycle, boat trolling motor, RV, and solar applications, with built-in 50A BMS for overcharge, over-discharge, and overheating protection, and 10-year lifetime, welcome to visit our website!