I changed to a Motorcycle Lithium battery for 2 reasons. The Lithium battery also has 20% more cranking power than the original and modern Motorcycle Lithium battery can be charged with the same chargers as Lead Acid Batteries. Another advantage is better resistance to self discharge and a longer life.
Over the past several years, lithium-ion batteries have become more popular in the aftermarket because they are much lighter and smaller than an equivalent lead-acid battery. In a lithium-ion battery, the positive electrode is made from a lithium-based material, the negative electrode is carbon or graphite, and the electrolyte is an organic solvent with a lithium component. The name lithium-ion refers to the process involved: Lithium ions move back and forth between the electrodes as the battery charges and discharges.
Weight of Motorcycle Lithium Battery
Less Weight – 0.7Kg vs 3.7Kg (6 lbs saved) for the original battery. A significant reduction in weight, particularly as the battery is just under the seat so quite high in the chassis. Less weight helps performance and handling.
Size of Motorcycle Lithium Battery
Smaller size, this became important when I changed to an Ohlins GP rear shock from a 2015 Suzuki GSX-R1000, and this has a built in reservoir that interferes with the original battery.
Capacity of Motorcycle Lithium Battery
The biggest advantage of a lithium-iron battery over lead-acid is energy density. Thus the smaller, lighter battery I used has more capacity (Watt Hours) and higher maximum cranking amps.