From the manufacturer Makita DHS680Z Battery Fuel Gauge The power remaining in the battery can be indicated in 3 stages simply by pushing a button. 3 lights on, more than 50 per cent of full battery capacity. 2 lights on, 20 per cent to 50 per cent of full battery capacity and 1 light on, less than 20 per cent of full battery capacity. Capacity: Blade diameter 165mm Bore 20mm Maximum cutting capacity at 0 degrees 57mm Maximum capacity at 45 degrees 41mm Maximum capacity at 50 degrees 37mm DHS680Z 18V Li-ion LXT 165mm Brushless Circular Saw – No batteries included Compact and lightweight The DHS680Z is a cordless circular saw, with a high efficiency brushless motor, powered by 18V Li-ion battery (not included) to deliver up to 680 watts maximum output, and 5,000 rpm. Features Automatic Speed Control, automatically changes the cutting speed according to the load condition, electronic current limiter for overload protection and LED indicator panel with 3 indicators for battery fuel gauge, automatic torque drive and overload protection. Magnesium base with 45 and 50 degrees bevel cutting capacity and blower function to blow sawdust from the cutting line ahead for better cutting view. Twin LED job lights for greater visibility. Rear dust exhaust port and dust nozzle attachable for connecting to vacuum cleaner. Electric brake for operator safety and soft start to suppress start up reaction for more control and accuracy. Large rubberised levers for quick and easy depth and bevel adjustments, and large lock off lever, can easily be operated with a gloved hand.