RIDGID introduces the AC87004P 18V 4.0 Ah Lithium-Ion Battery 2-Pack. These 4.0 Ah batteries will provide up to 3X more runtime compared to the 1.5 Ah Lithium-ion battery (AC870015). These 4.0 Ah batteries are 10% more compact and 10% lighter compared to the previous model (AC840087). As always, these 4.0 Ah batteries are 100% compatible with all RIDGID 18V tools. Best of all, these batteries are eligible for the Industry's Only Lifetime Service Agreement, simply register within 90 days of purchase for FREE Parts, FREE Service, For LIFE. Charger sold...