Battery Amp Hours Really Do Affect How Much Power Your Power Tool Delivers

In our Craftsman vs Ryobi hammer drill comparison, several people pointed out that we were using different batteries: a 2.0Ah for the Craftsman and a 4.0Ah for the Ryobi. Because most people buy these tools as kits, we tested the kitted batteries. However, most tool enthusiasts know that battery amp hours affect power. But by how much?
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