RIDGID introduces the 18V 4.0 Ah Battery (2-Pack) with Charger, Bag, and 18V Brushless Cordless Compact Router. These batteries get up to 4X the runtime of standard lithium-ion batteries and are built for high performance and are protected from overheating, overloading and overcharging through their Triple Protection Electronics design. Their chemistry allows for maximum performance in temperatures as low as -4 degrees and up to 120 degrees F, so you can confidently use them year-round. The charger is compatible with all RIDGID 18V Batteries. The new router boasts 50% increased power over the predecessor model, delivering more power than corded units. With a premium die-cast body and rubber over mold, this router brings increased durability and up to 40% vibration reduction. Backed by the Industry's Only Lifetime Service Agreement, this kit includes two 4.0 Ah Batteries, an 18V Charger, router, a collet wrench, dust chute, edge guide and fixed D-Shaped base.