The Flex-tools accessory 531719 P-Set 12-22 Q Power Set includes a practical kit consisting of two powerful 12V batteries, each with a capacity of 2.5 ampere-hours (Ah), as well as a fast charger. This set is ideal for various applications where a reliable power source is needed. The batteries are specifically designed for use in devices and offer high performance along with a long lifespan. The included charger allows for quick recharging of the batteries, ensuring that readiness for use can be restored swiftly. With a total of two batteries in the set, users can extend the operating time of their devices without having to endure long waiting periods. This accessory is a valuable addition for anyone relying on Flex-tools products and looking to operate their tools efficiently.