Verum is reader-supported. When you buy through a link on our site, we may earn an affiliate commission – learn more

Power Tool Batteries – Makita, Dewalt, Ryobi, Bosch & More

Cordless Power tool batteries small medium large compared uk

The best cordless power tools are super convenient. And if you use the same batteries across multiple, same brand, devices and they’re also affordable. 

It makes sense to choose one power tool brand and stick with it. This means you can use the same batteries and charger across all your devices. This is much more convenient and you’ll save a fortune too. 

Below you’ll find details of the right batteries for the best power tools available in the UK, right now.

What is the best battery for power tools?

Stick with one brand. Black+Decker and Bosch (power for all) ranges are aimed at the DIY market. Dewalt, Bosch Pro and Makita are aimed at trade. Ryobi straddles both. 

When comparing brands, it makes sense to consider the range of tools on offer, which tools you want now and what you may be looking for in the future. Stating the obvious, the bigger the available range, the more choice you have now, and in the future.

All the batteries recommended here are 18v (Volts). Lower voltage tools can feel underpowered and  Go bigger and you’re looking at specialist devices with a limited range. It’s important to note that an 18v battery should only be used with an 18v device.

Choosing the Right Battery – Quick Guide

  1. Power tool & battery brand/range must match. 
  2. Voltage is fixed. If your power tool is 18v, you need an 18v battery
  3. You can use different Ah batteries on the same device. The higher the Ah rating, the longer the battery will last. 

Black Decker 18v power tool batteries compared size capacity weight and cost uk
Black+Decker Cordless Power Tool batteries

Black+Decker 18v Power Tool Batteries
Good for DIY and Gardening

Black+Decker power tools are affordable and highly rated for occasional DIY and gardening. As you can see from the details below, the batteries are also good value. For most tools and tasks it makes sense to opt for a couple of smaller batteries in preference to one large. This way, you can keep one on charge while using the other.

  • Number of Tools in Range: 30+
  • Charge Indicator on Battery: No

2.0Ah Black+Decker 18v Battery | 400g | Verdict Price £40
See Best Price on Amazon

4.0Ah Black+Decker 18v Battery | 650g | Verdict Price £55
See Best Price on Amazon

Black+Decker 18v Charger | Verdict Price £20
See Best Price on Amazon


Bosch 18v power tool batteries compared size capacity weight and cost uk
Bosch ‘Power-for-All’ Cordless Power Tool batteries

Bosch 18v DIY Power Tools Batteries
Power for All (Green) Bosch Range

Bosch offers two power tool ranges. For DIY  the ‘power for all’ range is easily identified by their green colour. There’s a good selection of tools for DIY, garden jobs and even cordless vacuums.

The larger batteries are expensive and heavy. There’s every reason to choose a couple of 2.5Ah batteries in preference to one large battery. This will save you money, give you a longer run time and lighter operation. Plus, you can charge one, while using the other. 

  • Number of Tools in Range: 40+
  • Will fit Bosch ‘Power-for-All’ range – green tools
  • Best Value – Two small batteries are cheaper, lighter and quicker to charge

2.5Ah Bosch 18v DIY Battery | 330g | Verdict Price £42
See Best Price on Amazon

4.0Ah Bosch 18v DIY Battery | 640g | Verdict Price £100
See Best Price on Amazon

Bosch 18v DIY Charger | Verdict Price £28
See Best Price on Amazon


Ryobi 18v power tool batteries compared size capacity weight and cost uk
Ryobi Cordless Power Tool Batteries

Ryobi 18v Power Tool Batteries
Wide Range for DIY and Trade

The Ryobi One+ range of power tools is excellent. There are decent budget models right through to tools for the trade with high end specifications such as brushless motors. 

Whether you’ve already invested in Ryobi tools or your thinking about it, what’s clear is that looking forward, you’ll be able to find the right tool for the job at a decent price.

  • Number of Tools in Range: 100+
  • Charge Indicator on Battery: Large Battery
  • Ryobi 5Ah battery is great value

2.0Ah Ryobi 18v ONE+ | 400g | Verdict Price £45
See Best Price on Amazon

5.0Ah Ryobi 18v ONE+ | 700g | Verdict Price £75
See Best Price on Amazon

Ryobi 18v ONE+ Charger | Verdict Price £40
See Best Price on Amazon


Bosch Pro 18v power tool batteries compared size capacity weight and cost uk
Bosch Pro Cordless Power Tool Batteries

Bosch 18v Professional Tools – Batteries
Trade Power Tools 

The Bosch Pro range (blue tools) are affordable and reliable. Plus, there are big battery options (upto 12Ah). These high powered battery packs are good for static devices, but due to the weight are something of a workout for drills, drivers etc.

There are a couple of Pro battery types. Go for the newer Pro Core (links below). They’re slightly smaller, but importantly have better heat management and therefore should last longer.

  • Number of Tools in Range: 60+
  • Charge Indicator on Battery: Yes
  • Buy multiple 4.0Ah batteries rather than large – They’re cheaper, lighter and quicker to charge

4.0Ah Bosch 18v Pro Battery | 515g | Verdict Price £54
See Best Price on Amazon

8.0Ah Bosch 18v Pro Battery | 955g | Verdict Price £170
See Best Price on Amazon

Bosch 18v Pro Charger | Verdict Price £60
See Best Price on Amazon


Dewalt 18v power tool batteries compared size capacity weight and cost uk
Dewalt Cordless Power Tool Batteries

Dewalt 18v Power Tools – Batteries
Professional Trade Power Tools

Dewalt has a premium reputation for top quality kit. Along with high-end reliability, their batteries are reasonably priced and with over one hundred tools to choose from, you’re guaranteed to find the right kit.

  • Number of Tools in Range: 100+
  • Charge Indicator on Battery: Yes
  • 5Ah battery is the best value

2.0Ah Dewalt 18v Battery | 350g | Verdict Price £40
See Best Price on Amazon

5.0Ah Dewalt 18v Battery | 620g | Verdict Price £75
See Best Price on Amazon

Dewalt 18v Battery Charger | Verdict Price £35
See Best Price on Amazon


Makita 18v power tool batteries compared size capacity weight and cost uk
Makita Cordless Power Tool Batteries

Makita 18v Power Tools – LXT Batteries
Huge Range of Professional Tools

Makita has built an excellent reputation with professional tradesmen. The majority of the power tools come with a 3-year warranty giving extra security to the purchase. The wide range means the choice is excellent, covering both specialist and broad needs, for pretty much every trade. Make sure your Makita power tools are designed for LXT battery fit (most are).

Invest in Makita tools and batteries today and get the right tool for the job. Plus, overtime you’ll save money too.

  • Number of Tools in LXT Range: 100+
  • Charge Indicator on Battery: Yes
  • 5Ah battery is the best value (same weight as 3Ah & 4Ah battery)

1.5Ah Makita 18v LXT Battery | 380g | Verdict Price £48
See Best Price on Amazon

5.0Ah Makita 18v LXT Battery | 600g | Verdict Price £80
See Best Price on Amazon

Makita 18v LXT Charger | Verdict Price £36
See Best Price on Amazon


What Else Do I Need to Know?

Battery Technology

There are three primary battery technologies – Lithium-Ion (Li-Ion), Nickel-Cadmium(Ni-cd) and Nickel-Metal Hydride (Ni-Mh). For power-tools, Lithium-Ion batteries are the best option and in most cases have replaced the older alternative technologies. 

Lithium-Ion batteries are lightweight, don’t have a memory effect and are quick to charge. 

AmpereHours (Ah) 

The higher the Ah rating, the longer the battery will last. While a higher Ah rating is nearly always preferable, they’re also more expensive and usually (but not always!) heavier. 

Think about the Ah rating as a fuel tank. The bigger the tank, the longer tool run-time between charges.

Voltage

The voltage of a battery is measured in volts(v). This indicates the strength of the battery. What’s important is that the tool voltage matches the battery voltage. 

Different manufacturers offer tool ranges that require a specific voltage. The majority of good DIY and standard trade tools are 18v. 

Battery Fit

Stating the obvious, a battery needs to fit the device. Most of the manufacturers only produce batteries for their own brand tools. However, it’s not unusual to find different ranges of power tools from the same manufacturer that require different batteries.

Are non-genuine power tool batteries any good?

Aftermarket batteries, according to owners and testers, don’t perform well. Some may be ok, but the tests we’ve seen show non-genuine batteries running down much quicker than the branded equivalent. Plus, owner feedback suggests they also have a shorter lifespan. Even though they’re sometimes much cheaper, the correct branded batteries will keep your power tools running for longer and will be of better value over time.

How Long Do Power Tool Batteries Last?

A Lithium-Ion battery should last 3 years with regular use. However, most keep going for longer – 5 years is a reasonable expectation. To maximise their lifespan, it’s worth taking a few precautions…

  1. Store the batteries charged – this is also more convenient
  2. Recharge from 20%. Avoid letting them drain completely
  3. Avoid moisture and bumps/drops etc
  4. Don’t let them get too hot – most important

READ NEXT:
Best Combi Drills