Help CenterBatteries and Tool PlatformsWhat does amp-hour mean?Amp-hours describe battery capacity. A higher amp-hour rating usually means more potential runtime, but it also often means a larger, heavier and more expensive battery.Did this answer help? Yes NoPeople also askDoes a higher amp-hour battery make every tool more powerful?Can I use different amp-hour batteries on the same platform?How large a battery should I buy?