My favorite drill is made by DeWalt. It’s an 18V Hammer Drill that came with a set of tools that I rarely use. This drill however has helped me with many projects over the years. I’ve just purchased two replacement rechargeable batteries, now it’s time to see what’s inside.

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Side Profile

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Top View

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Notice the clips use steel leaf springs…

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Looks like a whole bunch of “C” size batteries.

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Between the cells and the connector.