This CRAFTSMAN V20 Starter Kit includes (2) 2Ah Lithium battery packs that each provide up to 1.5x longer runtime than a standard lithium battery. They are compatible with the CRAFTSMAN V20 cordless power tool and outdoor tool lineup. The professional grade high performance cells provide improved power and a longer cycle life. Each pack is equipped with a 3-LED state of charge for immediate battery charge feedback. No memory and virtually no self-discharge means this battery is ready when you are. The included lithium battery charger recharges batteries in 60 minutes or less for improved productivity.