HART 2-pack 20-Volt 4Ah Batteries and Brushless Angle Grinder

20V 4.0Ah Battery 2-Pack: 4X longer runtime*, fade-free Lithium-ion power, on-board fuel gauge, more power than a standard 1.5Ah battery & works with All HART 20V tools. 20V 3 AMP Fast Charger: Charge any HART 20V battery at 3x the rate of standard 0.5 AMP charger. 20V Brushless 4-1/2" Angle Grinder/Cutoff Tool: Over 45% more cuts per charge, over 25% faster cutting, paddle switch design, tool-free guard design, on-board storage, 3-position side handle, wheel size: 4-1/2", arbor size: 5/8" & weighs 3.92 lbs.