Filter Results
  • Duracell (5)
  • Ryobi (11)
  • Panasonic (3)
  • Milwaukee (11)
  • Bosch (17)
  • Sony (9)
  • WEBB (1)
  • Hilka (1)
  • WORX (4)
  • Gtech (2)
  • Mountfield (2)
  • Draper (27)
  • Sakura (3)
  • LG (6)
  • Ring Automotive (3)
  • Metabo (5)
  • JCB (3)
  • Greenworks (3)
  • Nikon (2)
more +
Price (inc. delivery)
Show Results

Power Tool Batteries

Thanks to the products you'll find in OnBuy's amazing power tool batteries category, cutting the cord to your tools has never been easier! We have a massive selection of batteries, including the latest lithium ion platforms, for you to pick from. Whatever you need your replacement power tool batteries for, you'll find a great deal for them in this category  - all you need to do is start browsing it to find them!

Showing 1-60 of 893 results

Sort By:
  • Popularity
  • Average Rating
  • Price (highest)
  • Price (lowest)
  • Newest

Looking to buy Power Tool Batteries?

So much more convenient and versatile than their corded counterparts, cordless power tools have taken the world by storm. These days, prices are so low that even hobbyists can afford a suite of battery powered tools.

Of course, that convenience goes out the window if they run flat, and even the most well-made battery will lose its charge eventually. So buy a replacement from this OnBuy category! Whether you're shopping for a replacement for a broken battery or you want a spare so you can go longer between charging in the field, you'll find brilliant options at OnBuy!

Power tool battery platforms

We have all sorts of power tool batteries for sale, but you'll find very few designed for specific tools in this category. That's because, in recent years, power tool brands have invested in creating power tool battery platforms. So, instead of buying a power drill battery, you'll buy a battery that can be used with a dozen or more power tools from the same brand. For example, Makita 18V batteries will work equally well with a Makita circular saw as it will with a Makita drill.

This is great news for anyone who owns more than one type of power tool. You won't have to worry about misplacing your power drill batteries; they're plugged into your angle grinder! You just need to make sure you buy a replacement from the right set - and with a wide range of batteries from top brands, you're in the right place! 

Third-party and aftermarket power tool batteries

Power tool battery cross compatibility is pretty rare among the leading power tool brands. That said, there is a growing market of third-party power tool batteries for sale. While you may be tempted by the reduced cost of these aftermarket batteries, you should always shop with caution.

That's because third party power tool batteries and chargers can't be made to the same specifications as the original, which results in worse performance. Unless you're trying to find power drill batteries for devices that have been discontinued, we always recommend buying a second from the original brand.

Of course, no matter how amazing these power tool batteries are, they won't be effective at all without a way to keep them charged. If your new power tool battery doesn't come with its own power source and looking for a Ryobi battery charger or a Makita charger, check out our power tool chargers category.

Customers love our best-selling Power Tool Batteries

Popular Brands in Power Tool Batteries

Ring Automotive

Our most popular Power Tool Batteries

Delivery Address

Sign in to view all of your delivery addresses


Enter your delivery address


Wait! You've left
something behind...

You'll only get instant Cashback at OnBuy! Enter your email below and we'll send you a copy of your basket to save you time later.

No thanks, I'm alright for now

By entering your email address, you'll automatically be added to our database, where you can enjoy personalised Cashback offers and early access to our best deals. You can opt out of our emails at any time and we'll never share your details with anyone. Check our Privacy Policy and T&Cs to find out more.


Before you go...
Remember, you'll only get instant Cashback on everything at OnBuy!

Want access to personalised offers and the highest Cashback rates? Sign up to our emails below.

No thanks, I'm alright for now

You can opt out of our emails at any time and we'll never share your details with anyone. Check our Privacy Policy and T&Cs to find out more.

This page has expired.

Please refresh the page to continue shopping.

Refresh and continue