Remember when you didn't depend on cords to run your tools? Power your life with a WEN 20V Max Lithium-Ion 8.0Ah Rechargeable Battery. This premium battery is designed to fit the entire WEN 20V Max series of tools and chargers. Lithium-ion cells create a fade-free power supply that provides 8.0 amp-hours worth of steady and consistent operation. The onboard ThermoFlow molded cooling fins help the battery run cooler and last longer. The onboard fuel gauge shows the remaining charge in the battery, and features green LEDs for high visibility in low-light conditions. Get up to 250% more runtime and 55% more power than a WEN 2.0 amp-hour battery, and up to 67% more runtime and 10% more power than a WEN 4.0 amp-hour battery. Replace your current battery or add an extra for double the runtime, keeping one on the charger and one in the machine. Forget the hassles of extension cords. It's time to simplify your life with an extra WEN 20V Max Lithium-Ion 8.0Ah Rechargeable Battery.