Pinit PT107513 (GoFree Flex Pro & GoFree Flex Pro II 12 ah Replacement Battery) SKU PT107724 QTY AVAILABLE: 4 $957.60 Quantity -+ Add to Cart Details GoFree Flex Pro & GoFree Flex Pro II 12 ah Replacement BatteryHigh performance mode optimizes cleaning needs with 73 minute runtimeLow power switch ex... Details Back DetailsGoFree Flex Pro & GoFree Flex Pro II 12 ah Replacement BatteryHigh performance mode optimizes cleaning needs with 73 minute runtimeLow power switch extends run time to 101 minutes