Power tool battery platforms — why sticking with one brand saves you money (and when mixing brands actually makes sense)

Category: Tool Tips & Tricks | Read time: 6 min read

You've done it. We've all done it. You're at the trade counter, the shelf has a "tool only" sticker on a grinder that's half the price of the full-kit version sitting next to it, and you think — well, I've got five Makita batteries at home, this is a no-brainer. And it is. Until it isn't. Until you're standing in front of a wall of five different chargers in the back of the ute, none of which will charge any of the other brand's batteries, and you're trying to remember which blue tool takes which blue battery because apparently there are three different shades of blue now.

The battery platform decision is one of the most quietly expensive choices you'll make as a tradie. Not because the batteries themselves cost that much — though they do — but because once you're in, you're in. Switching costs aren't just the price of new batteries. They're the price of every tool you already own becoming a paperweight unless you're willing to run two charging stations and a colour-coded inventory system that your apprentice will ignore anyway.

Here's the thing most blokes get wrong about batteries — they treat them like accessories when they should treat them like an investment. A cordless drill body might last you five years if you're hard on it, seven or eight if you look after it. But the battery platform? That's a ten-year commitment at least. Because the manufacturers know exactly what they're doing. They sell you the drill body at cost or close to it, and they make their margin on the batteries and the chargers. That's the lock-in. Once you've got eight batteries and two fast chargers wired into the ute, you're not switching to yellow because DeWalt released a brushless impact that looks nice. You're staying blue. Or red. Or teal. Whatever colour you chose at the start.

And look, that lock-in isn't always a bad thing. There's genuine upside to committing to one platform. Your batteries are interchangeable across every tool — the same 5Ah pack that runs your drill runs your saw, your grinder, your vac, your radio. You only need one spare charger on site because everything takes the same one. When you snap a tool, you can buy it bare and save a hundred bucks because you've already got the battery. Over a five-year span, that adds up to real money — probably a couple of thousand dollars you didn't spend re-buying batteries you already owned.

But here's where it gets interesting. The one-platform rule works perfectly until you hit a tool that your brand just doesn't do well. And every brand has a weak spot. Maybe your brand's cordless planer chews through batteries in twenty minutes. Maybe their jigsaw vibrates like a jackhammer. Maybe they don't even make a cordless SDS that can keep up with a day of chasing brickwork. And now you've got a choice — buy the inferior tool because it fits your battery system, or buy the better tool and admit you're now running two platforms.

I've been there. I run Milwaukee for everything I use every day — drill, impact, grinder, Sawzall. That's the spine of my kit, and the M18 system is rock solid for all of it. But I also run a Festool track saw and vacuum, because for cabinet work and mitre cuts, nothing else comes close. Two platforms. Different chargers. Different batteries. Different drawers in the tool box. And you know what? It's fine. It's a minor inconvenience for genuinely better performance on the tools that matter most.

The rule I've settled on, and the one I'd pass on to anyone starting out or thinking about switching — your daily-driver platform should be one brand. The tools you use on every job, every day, the ones where battery life and interchangeability actually matter. That's where you go all-in. That's where you buy the bundle deals, stack the batteries, wire the van charger. But for specialty tools — the ones you use once a fortnight, the ones where quality differences actually show — it's okay to run a second platform. Buy the best tool for that specific job. Figure out the battery situation later. One extra charger in the ute is a small price to pay for a tool that actually does what you need it to do.

The real mistake isn't running two brands. It's running five. I've seen blokes with Milwaukee drills, DeWalt saws, Makita grinders, Ryobi sanders, and Ozito everything else — and none of it can share power. They've got more chargers than tools, more battery types than brain cells left to remember which one fits what. That's not being flexible. That's buying whatever was on special without thinking about the long-term cost. Every bare-tool deal you buy from a brand you don't already run is a step deeper into chaos.

So here's the practical takeaway. Pick a main brand and commit. Makita, Milwaukee, DeWalt — they're all good enough that the difference between them doesn't matter for 90% of what you do. Buy their bundles, stack their batteries, wire your van for their charger system. Then, for the 10% of jobs where a specialty tool genuinely out-performs what your main brand offers — buy that tool, buy one battery and one charger, and call it done. You'll have a system that works for the daily grind and the right tool for the jobs that actually need it.

Most tradies agonise over which drill to buy. The smart ones think about which battery wall they want to be stuck inside for the next ten years.

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