Review on Upgrade Your Craftsman Tools: Enegitech 19.2V 4.0Ah C3 High Capacity Lithium Ion Battery Replacement (2-Pack) by Troy Coskillas

So far I have used it through two charge cycles and so far so good. The first time I charged it it threw the defective battery light, but the indicator on the battery said it was fully charged. So I continued to use it as normal then the next time I charged it, it charged fine. I'm hoping it was just a fluke but time will tell. I will be ordering more in the near future. They have brought life back to my old crapsmen cordless tools. Plus they are lighter than the old ni-cad batteries. One thing to note is that the old chargers are not duel chemistry chargers, so I had to buy a new drill set to get the charger because it was only a few dollars more to get the set than just a charger.