“Small Impact, Big Power: DEWALT 5Ah PowerStack Explained”

Which Dewalt Battery Option is Right for Your Power Tools?

In the last two videos, we compared the smaller and larger Dewalt batteries to showcase the different voltages available in various tools. Today, we’re testing a small Dewalt Atomic impact driver by drilling different screws into wood and testing the voltage of each battery to determine which one will be the best option for your uses.

To conduct the test, two wires were used, and the voltage was measured to observe how much power the tool consumes from the batteries. We designated the batteries based on their amp hour rating, even though the voltage drop is based on the battery’s cells and not the amp hour.

The tests conducted showed that the 2 Amp Hour Compact battery consistently had a voltage of 16 volts, while the 1.7 Amp Hour Power Stack battery stayed in the mid-17s. The Three Amp Hour Compact battery consistently stayed in the high 17s to low 18s, and the 4 Amp Hour Compact almost made it down to 17.2 volts.

The 5 Amp Hour XR battery showed low 18s and high 17s, while the 5 Amp Hour Power Stack never made it out of the 18s. The 6 Amp Hour 20 Volt battery never made it out of the 18s, but the 8 Amp Hour XR 20 Volt battery did surpass 18 volts. These batteries performed well on a small impact tool like the Dewalt Atomic.

Lastly, to everyone’s surprise, the tiny Dewalt Atomic’s voltage sustained mid to high 19s even after being tested on a 9 Amp Hour Flexvolt battery.

From the tests, it is evident that although the 6 Amp Hour battery has more power, it was too powerful for the small tool’s application. Therefore, users seeking a good balance between runtime and performance should consider the 3-4 Amp Hour and 5 Amp Hour Power Stack batteries, respectively.

Furthermore, DeWalt is preparing to launch a kit that includes a 7 and 1/4 inch circular saw and a 5 Amp Hour battery. The performance of this kit remains to be seen, but once we get our hands on the circular saw, we’ll conduct similar tests and let you know our findings.

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