ego™ power+ 42" z6 zero-turn mower peak power+ technology combines the power of up to 6 ego™ ego ego ego™ 2.5ah battery 140wh capacity ego™ power+ 52" z6 zero-turn mower peak power+ technology combines the power of up to 6 ego™ 56v arc available at select stores ego ego™ 4ah battery 224wh capacity ego ego™ 5ah battery 280wh capacity ego optimize your power all ego™ arc lithium batteries are compatible with all ego™ tools and chargers textos ego™ 7.5ah battery 420wh capacity ego ego ego™ 10.0ah battery 560wh capacity