DEWALT DCB201 1.5-Ah 20-Volt Lithium-Ion Compact Battery
DEWALT DCB201 20-Volt MAX Li-Ion compact battery packs are a 1.5 Ah extended run-time battery that provides long a run-time and battery life.  They have no memory and virtually no self-discharge for maximum productivity and less downtime.  They have a quick 30 minute charging time.  They are light weight, weighing only .77 pounds, allowing a user a long run time and a less fatigue.