10 Truths About Cordless Power Tools Every Woodworker Should Know

Cordless power tools are a game-changer in the shop but there’s a lot the big brands don’t tell you. From hidden battery costs to platform traps, there are a few truths every woodworker should know before buying that next drill, saw, or sander.

Whether you’re just getting started or upgrading your shop setup, this guide breaks down the real facts so you can save money, work safer, and choose tools that actually make sense for your woodworking goals.

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🛠️ Shop the Tools Mentioned in This Post

Best Starter Kits from Each Brand:

Batteries and Accessories:

⚡ Truth #1: Bigger Batteries Aren’t Always Better

Both 2Ah and 5Ah batteries may say “20V,” but they don’t perform the same. The larger one gives you more runtime, not more power.

Use smaller batteries for overhead drilling and lighter tools.
Use larger batteries for demanding jobs like cutting hardwood or running saws.

You can grab top-rated batteries like the Milwaukee FORGE 12.0Ah or DeWALT PowerStack for high-performance tools, but for light-duty tasks, smaller packs keep your setup light and balanced.

🔋 Truth #2: Battery Tech Makes a Difference

Not all lithium batteries are created equal.
If you’re using RYOBI One+ HP, grab the newer RYOBI Edge Batteries.
For Milwaukee fans, the FORGE line delivers more efficient power and cooler operation.

These new-generation batteries last longer, charge faster, and perform better — especially on saws, routers, and sanders that pull heavy current.

🔥 Truth #3: Fast Chargers Can Shorten Battery Life

Yes, fast chargers are convenient, but heat is the enemy of every battery.

If you want maximum life:

Use a standard charger whenever possible.
Keep an ABC-rated fire extinguisher nearby.
Never leave batteries charging unattended.

That quick charge might save time now, but you’ll pay for it later in replacement costs.

❄️ Truth #4: Heat and Cold Crush Performance

Batteries don’t like temperature extremes. In my test, a frozen DeWALT PowerPack couldn’t even finish drilling, while a room-temperature battery tore through with no problem.

Rule of thumb: If you’re cold, your batteries are cold.
Store them inside when possible and avoid leaving them in a hot truck or freezing shed.

🧰 Truth #5: Pick Your Platform Carefully

Once you buy into a platform, you’re in for the long haul — that’s the ecosystem tax no one talks about.

Before choosing between Milwaukee M18, DeWALT 20V, or Makita 40V:

List your must-have tools now and in the future.
Stick with brushless models for longer life.
Avoid knockoff batteries — they’re unsafe and void warranties.

Pro tip: Sign up for my Daily Tool Deals email list to catch discounts on batteries and kits across all these brands.

⚙️ Truth #6: Specs Don’t Always Tell the Story

A drill with 1,400 RPM might look better on paper than one with 1,200, but in the shop, comfort and balance matter more than specs.

For most woodworkers:

The Milwaukee M12 FUEL drill covers 90% of daily shop needs.
The DeWALT XR Combo adds extra torque when needed.

Buy what works best for you, not just what looks good on the box.

⚡ Truth #7: Corded Tools Still Have a Place

Not everything needs a battery.
For example, my DeWALT Table Saw runs smoother and more consistently than the cordless versions.

Same goes for the Makita Corded Track Saw — incredible precision, zero battery downtime.

Use cordless where convenience matters, and corded where continuous power counts.

🪚 Truth #8: Keep Blades and Bits Sharp

A dull blade or cheap bit makes your battery work harder.
High-quality options like Diablo or Milwaukee blades reduce strain and keep your runtime high.

It’s not just the battery — the accessory quality matters, too.

🔋 Truth #9: Don’t Drain Batteries to Zero

Every time you run a battery completely flat, you shorten its life.

When it hits one bar, swap it out and recharge.
This prevents internal cell damage and heat buildup.
And for long-term storage, keep batteries in a climate-controlled space — not your unheated garage.