How much does this cost to the nearest dollar?

BiXPower 36V 11.6Ah Electric Bicycle E-Bike High Capacity Light Weight Lithium Ion Battery BX3691
36V High Capacity @ 36V or 418 Watt-Hour) Light Weight Lithium Ion Battery for electric bicycles and other devices that require high power. Made with high quality premium Lithium Ion cells. For using with 500W or less power motor. If your e-bike motor requires more than 500W power, this battery may not work. This battery weighs around 5.5 pounds. A same capacity Sealed Lead Acid battery may weigh around 30~40 pounds. Specifications Model# BX3691 Battery Cell Chemistry Lithium-ion Output Voltage Nominal Voltage 36 V, Minimum Voltage 30V, Maximum Voltage 42.

Price is $400.00

Price: $399.95