About this item Lithium Motorcycle Battery, Voltage: 12.8 volts; Capacity: 4 Ah; Starting Power is 240A,with [+ - ] terminal AMPXELL Lithium Motorcycle Battery use Stacking Li-Po Cell, Low Internal Resistance, Stable Voltage, Excellent Low-temperature performance, High Continuous Discharge C-rate, Powerful Starting Current. It Easily Starts Motorcycles and Other Electronic Equipment at -4F to 140F(-20? to 60?). With the Same Capacity Battery, The Discharge Rate of The Lithium Iron Phosphate(LiFePO4)Battery is 10 Times That of The Lead-acid Battery, The Volume and Weight are only 1/3 of the Ordinary Lead-acid Battery, and The Self-discharge is Low, There is No Memory Effect, and The Service Life is Longer. Higher Safety Performance, After Modified Heavy-duty Shell Protects The Battery from Weather and Dust. The Battery Components do not Contain any Acid and Lead-free, It is Safe and Environmentally Friendly, Maintenance-free, and Can Be Charged and Used at Any Time. Quad Terminal and Universal Spacer Design, Compatible with Most Motorbike, ATV Personal Watercraft, Jet Ski, Motorboat, Scooter Batteries, as Well as Replacement Lead-acid YT7B-BS, UT7B-BS, CT7B-4, YT7B-4, YT7B-BS, ATX7BBS, TLP7BBS, ET7B Batteries, etc.,to Easily Connect Various Vehicles in Multiple Directions and Compatible more Lead-acid Battery Models AMPXELL Lithium Batteries have Passed Strict Quality Tests Before Leaving The Factory, with Real Nominal Capacity, No False Capacity,Small Internal Resistance, Stable Voltage and Higher Safety. About Warranty: We have Professional Engineers in the United States to dock, We Provide 12 Months Free Replacement,24 Hours Online to Answer Questions. Please Check the Size of the Battery Compartment of Your Electronic Device Carefully Before Purchase or Contact us by Email.