Mantis 24-Volt Reel Mower Battery 811075 Battery for Mantis Reel Mower Convenient harness strap allows you to carry the battery with you for a quick change on larger mowing jobs. Mow up to 2,500 square-feet. (up to 30 minutes) on a single charge. Durable 24-volt NiCad Accu, Rechargeable Rated for up to 500 charging cycles