EGO Power+ BA2800 56-Volt 5.0Ah Lithium-Ion Battery

Arc-Lithium: Industry's most advanced battery technology Keep-Cool Cell Technology The patented power management system protects the battery pack from the most harmful elements a battery can face from overheating to over-discharging Weather-resistant construction. This Lithium-Ion battery pack will provide optimal performance in temperatures between 32F (0C) and 104F (40C) Integrated fuel gauge so you know how much power is left