I purchased Craftsman C3 19.2 Volt Replacement Batteries to replace my old battery that no longer held a charge. I am more than satisfied with the replacement batteries ability to completely recharge in under 2 hours. I'm also impressed that these batteries can hold a charge longer than my previous battery. I have on several occasions used my drill sporadically for 3 hour periods without alternating batteries and it performed at the same level throughout the entire job. What I like most about these batteries is that I don't have to charge them frequently. If I fully charge each battery they will maintain their charge for weeks without any significant power loss. The only downside I have encountered with these batteries is that they run a little warm after about 15 minutes of use. I haven't noticed any physical or performance issues due to the warmth of the battery so I don't consider it to be a major concern at the moment. I would definitely recommend Craftsman C3 19.2 Volt Replacement Batteries because they can bring new life to an old drill that appears to be on the decline.