Rechargeable lithium battery compatible with the Toro 60v Flex-Force range & Hayter’s 60v Mower range. The Toro Flex-Force battery automatically adjusts the battery's performance to suit the product it’s powering & the working condition. Charge time: 90 minutes Model: 88660 Specification: LED Power display 6 Ah 324 Wh Warranty: Manufacturer’s 3 year