USB port design is adopted, which enables this battery adapter to charge smartphone, camera and other electronic equipment anytime and anywhere, which has wonderful convenience.You can enjoy the benefits of extending the run-time of batteries on your existing 18V equipment, because this battery adapter is capable of making 20V battery work on the 18V power device.Fireproof ABS is the main material of this battery adapter, so it is anti-corrosion and durable.Its length is 11cm, its width is 7cm and its height is 5cm.This battery adapter is suitable for MAKITA power tool machines with slide pack batteries.Item Name: Battery ConverterMaterial: Fireproof ABSRated Voltage: 18VType: 20V Battery to 18V BatteryBattery Applicable Products: for DEWALT/for Milwaukee 20V BatteryConvert Product: for Makita 18V BatteryFeatures: USB Port Design, Voltage Transformer, Safe to UseSize Details: 11cm x 7cm x 5cm/4.33" x 2.76" x 1.97" (Approx.)