How much does this cost to the nearest dollar?

SUnMilY 56V 9.0Ah Lithium Battery Replacement for BA4200 BA2800 with Power Indicator, High Output Compatible with All Power Plus Tools
Ideal battery replacement for battery 56V 10 7.5 5.0 Ah. Compatible with all power plus Equipment and chargers. Long Lasting and better performance than 7.5 5.0 2.0 2.5 4.0 Ah lithium battery Fuel Gauge on Board, the new built-in indicator lights displays remaining runtime for less downtime on the work, more intelligent. Power Management will protect lithium battery from overheating and over-discharging, prolong battery life. Unique Arc shape and Ventlation slots design keep battery cool for long time working in extreme conditions Purchase with Confidence 

Price is $269.00

Price: $269