For people who do the work themselves

You are not buying a tool. You are picking a side for ten years.

The drill is the easy part. The day you want the saw that goes with it, the battery decides, not you. We explain what fits what, what changing your mind actually costs, and which tool does the job in front of you.

See the scored hammers Pick a platform

Drilling a concrete wall with the DeWalt DCH273 and dust extraction
Drilling a concrete wall with the DeWalt DCH273 and dust extraction. Image published by DeWalt.

The decision that locks you in

Your battery platform

9

platforms compared, with the maker's own figures

Switching platform costs you every battery you already own. It is the most expensive decision in your tool collection, and the one most people make without thinking.

Pick a platform

The gap nobody fills

Battery adapters

15

pairs people actually search for, both directions

Running a Makita tool off a Ryobi battery is possible, it is sold, and it carries real risk. We say which pairs exist, in which direction, and when not to do it.

See the matrix

One battery, many brands

The three alliances

3

brand alliances, incompatible with each other

AMPShare, CAS and Power for All run tools from dozens of makers off a single battery. It is the least known fact in the category, and it changes the maths.

How alliances work

The machines we scored

Bosch Professional GBH 18V-26 rotary hammer with side handle

Bosch GBH 18V-26

8/10 The hardest hitter here, on the most open alliance

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Einhell HEROCCO rotary hammer with its Power X-Change battery

Einhell HEROCCO 18/20

8/10 The best power for the money in this panel

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Makita DHR243 rotary hammer with its 18V LXT battery

Makita DHR243

7.5/10 The continuity choice for a workshop already on LXT

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DeWalt DCH273 rotary hammer with PowerStack battery

DeWalt DCH273

7.5/10 Compact and well documented in use, thin on numbers

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See the full comparison

Scored comparisons

Bosch GBH 18V-26

18V SDS-Plus rotary hammers

Seven 18V SDS-Plus rotary hammers, one per battery platform, scored on impact energy, capacity, hammer rate and price per joule.

See the comparison

What people actually type

If you take one thing from this site: choose the battery platform before you choose the tool. An impact driver can be replaced; a platform is something you live with. Once you own three batteries from one maker, the cost of leaving is almost always larger than the price gap that would have changed your mind.

What this actually looks like

Three situations these machines really meet. The photographs come from the makers: we do not stage jobsites we have not worked on.

Drilling a concrete wall with the DeWalt DCH273 and dust extraction
Drilling concrete, for a whileFixing a rail, a bracket, a guardrail. This is where impact energy earns its keep and where dust becomes a real subject.
Drilling an interior wall with the Ryobi R18SDS
Drilling an interior wallA shelf, a wall unit, a radiator. An entry level machine is enough, as long as you know what sits behind the board.
Drilling into tile with the Metabo KH 18 LTX BL 24
Drilling tile without cracking itThe case where hammer rate matters more than force. Rotation only through the glaze, then hammer once you are through.

Where to start

Starting from nothing

No cordless tools yet, a job coming up. The decision guide starts from how you actually work, not from a ranking.

Pick your first platform

I already own batteries

The question is no longer which brand, but what your platform can do and what it will never do.

See all nine platforms

18V or 20V MAX

The same battery carries two different numbers depending on the market. It is the first confusion in the category, and it is deliberate.

Understand the difference

How many bags

Concrete, mortar, quantities. The assumptions behind the number are written down, not hidden behind a result.

Open the calculator

What this site does not do

We do not bench test tools, and we do not pretend to. What we do is documentary: read what manufacturers publish, retrieve real prices, check what fits what, and say so plainly when the sources contradict each other. When Makita claims 380 products in one block of a page and 440 in another block of the same page, we quote both.

We are not a substitute for a licensed trade. On electrical work, gas, load bearing structure and work at height, the rules are not suggestions: an electrical installation has to meet the code that applies where you live and pass the inspections that go with it. A tool buying site authorises nothing.