RIDGID 18V Lithium Ion 1.5 Ah Battery (4 Pack) Windham 2 Door Lock Style Classic 2 Door Lock Style Classic Hardware Included Lock with Passage Knob Commercial Residential Residential Knob Shape Round Returnable 180 Day Door Locks & Knobs Product Type Combo Pack Keyway KW1 Finish Venetian Bronze Interior Exterior Exterior Security ANSI Grade ANSI Grade 3 (Good) Application Type Entry Features Easy Installation Electronic Mechanical Mechanical Included Hardware and durable finish resists household chemicals and cosmetic products A: The charge time for each battery is approximately 45 minutes when using a compatible charger A: Register your RIDGID battery within 90 days of purchase to qualify for the Lifetime Service Agreement