This 2 pack of CRAFTSMAN V20 20V max* 2Ah Lithium battery pack provides up to 1.5x the runtime of a standard V20 20V max* Lithium battery. They are compatible with the CRAFTSMAN V20 20V max* cordless power tool and outdoor tool lineup. The premium grade high Performance cells provide high power and a long cycle life. Each pack is equipped with a 3-LED state of charge indicator for immediate battery charge feedback. No memory and low self-discharge means these batteries are ready when you are.