Overloads will quickly result in overheating and cell damage inside the battery housing even if this overheating is not apparent externally. Store the battery pack in a cool place, ideally at 59°F (15°C) and charged to at least 40%. Do not expose power tools to rain or wet conditions. Before switching on the mower, make… Continue reading Sun Joe 24V-X2-21LMSP 21″ iON+ Cordless Self-Propelled Lawn Mower with 4 0Ah Batteries, Dual Port Charger, & Collection Bag 48V