Ryobi ONE+ is the world’s largest cordless tool system with over 300 compatible tools sharing the same 18V battery platform. It’s the go-to choice for UK homeowners and DIYers who want affordable, reliable power without breaking the bank. Available from B&Q, Screwfix, and Amazon.co.uk, the ONE+ system offers excellent value and compatibility across an enormous range of tools — from drills and saws to garden equipment and worksite lighting.
The strength of the ONE+ system lies in its simplicity: any ONE+ 18V battery fits any ONE+ 18V tool. No adapters needed, no compatibility headaches. Whether you own a single drill or a complete arsenal of garden and workshop tools, a single battery platform keeps your entire setup running. This guide covers every Ryobi ONE+ 18V battery available in the UK, which tools they’re compatible with, charger options, and the difference between standard and HP batteries.
If you’re comparing Ryobi against other brands, see our guides to Makita 18V LXT, DeWalt 20V MAX, and Milwaukee M18 for side-by-side comparison.
Quick Compatibility Rules
Get straight to the point: here’s what you need to know about Ryobi ONE+ 18V compatibility.
- All ONE+ 18V batteries fit all ONE+ 18V tools. There are no exceptions. An older RB18L20 from 2015 will fit a brand-new drill released this year.
- HP batteries work in standard tools, and vice versa. The difference is performance, not compatibility. HP batteries deliver 30% more power but work in any ONE+ tool. Standard batteries work in HP tools but don’t unlock the extra performance.
- One+ 18V batteries do NOT fit 36V or 40V Ryobi tools. These are different platforms with incompatible battery designs. No adapters exist for cross-compatibility.
- All Ryobi ONE+ chargers work with all 18V batteries. Whether you have a standard 1.5A charger or a fast 5.0A super charger, they all work with every battery in the range.
- Older batteries (pre-2015) are still compatible. If you have vintage Ryobi batteries from the early ONE+ era, they will fit modern tools. However, they may lack IntelliPort technology for charge monitoring.
Every Ryobi ONE+ 18V Battery
Ryobi offers 10 different ONE+ 18V batteries in the UK market, split into two categories: standard batteries and the newer HP (High Performance) range. The table below shows every available battery, its capacity, key features, and where to buy.
| Battery Model | Capacity | Type | Key Features | Best For | Buy |
|---|---|---|---|---|---|
| RB18L15 | 1.5Ah | Standard | Compact, lightweight, entry-level | Light-duty work, starter kits | Buy on Amazon |
| RB18L20 | 2.0Ah | Standard | Good runtime, everyday work | Drills, drivers, hand tools | Buy on Amazon |
| RB18L25 | 2.5Ah | Standard | Extended runtime over 2.0Ah | General-purpose workshop tools | Buy on Amazon |
| RB18L40 | 4.0Ah | Standard | Longer runtime, heavier work | Saws, sanders, garden tools | Buy on Amazon |
| RB18L50 | 5.0Ah | Standard | Extended capacity, all-round workhorse | Garden equipment, extended jobs | Buy on Amazon |
| RB18L60 | 6.0Ah | Standard | Maximum capacity for standard batteries | Heavy-duty use, backup battery | Buy on Amazon |
| PBP002 | 1.5Ah | HP (High Performance) | 30% more power than standard, ultra-compact | Lightweight drilling, fastening | Buy on Amazon |
| PBP003 | 2.0Ah | HP (High Performance) | 30% more power, compact form factor | General drilling, driving, everyday work | Buy on Amazon |
| PBP004 | 4.0Ah | HP (High Performance) | 30% more power, longer runtime than PBP003 | Saws, heavy drilling, sustained work | Buy on Amazon |
| PBP007 | 6.0Ah | HP (High Performance) | 30% more power, maximum capacity, lightest 6Ah option | Garden tools, extended jobs, heavy-duty workshop | Buy on Amazon |
Standard vs HP Batteries — What’s the Difference?
Ryobi’s newer HP (High Performance) batteries represent a significant upgrade over standard ONE+ 18V batteries, but they’re fully backward compatible. Here’s what you’re paying extra for.
HP batteries deliver 30% more power than their standard counterparts by using improved internal electronics and higher-quality cells. This translates to faster drilling in tough materials, longer run times per charge, and better performance when the battery starts to age. The extra power comes from additional battery contacts (the gold terminals on the bottom), which allow more current to flow to the tool. HP batteries have a slightly different form factor — they’re typically lighter and more compact than equivalent-capacity standard batteries.
Compatibility is universal: HP batteries work in every ONE+ 18V tool, including older tools from 2010 onwards. Standard batteries also work in HP tools, but they don’t unlock the extra 30% performance — they just deliver standard power levels. If you’re running a mix of old and new tools, you don’t need separate batteries. One set of HP batteries covers everything, and you’ll get maximum performance in every tool.
Which should you buy? If you’re starting fresh or upgrading, go HP. The extra cost is modest (typically £15–25 per battery), but you’ll notice the improvement in runtime and drilling power, especially in harder materials. If you already own standard batteries, they’re not obsolete — keep using them. Both types charge in the same chargers and work in the same tools.
Compatible Tools by Category
Ryobi’s ONE+ 18V platform covers an enormous range of tools. The list below is organised by category, with model numbers and the recommended battery capacity for each tool type. All batteries in the table above will work in every tool listed here.
Drills & Drivers
Cordless drills are the foundation of any tool collection. Ryobi offers compact drill-drivers for everyday work and full-size options for heavy-duty drilling in thick timber or masonry. A 2.0Ah or 4.0Ah battery handles most drilling jobs; go to 5.0Ah or 6.0Ah if you’re doing extended work without swapping batteries.
Compatible models: R18DD7 (compact drill-driver), R18PD7 (percussion drill), R18DD2 (two-speed), R18DDP (brushless drill-driver), R18DDBL (brushless), R18DCS (drill-driver with case).
Best battery: RB18L40 or PBP004 for general use; RB18L20 or PBP003 for light work; RB18L50 or PBP007 for extended jobs.
Impact Drivers & Wrenches
Impact drivers deliver rotational force for fastening stubborn bolts and driving long screws. Ryobi’s impact tools are lighter than drills and consume less battery power per use. A 2.0Ah battery is often sufficient; 4.0Ah gives you longer intervals between charges.
Compatible models: R18ID3 (compact impact driver), R18IW3 (impact wrench), R18IDBL (brushless impact driver), R18IW7 (1/2″ impact wrench), R18IM (impact multi-tool).
Best battery: RB18L20 or PBP003 for fastening work; RB18L40 or PBP004 for extended use or heavier applications.
Circular Saws
Circular saws demand consistent power to cut through timber, plywood, and composite materials. Ryobi’s saws are compact and suitable for crosscutting and ripping. Use at least a 4.0Ah battery to maintain cutting power through a full sheet of material.
Compatible models: R18CS7 (compact 165mm saw), RWSL1801M (masonry blade variant), R18CSB (brushless), R18CS (standard 190mm).
Best battery: RB18L40 or PBP004 minimum; RB18L50 or PBP007 for longer cuts or back-to-back jobs.
Jigsaws & Reciprocating Saws
Jigsaws make curved cuts in timber and thin materials; reciprocating saws cut faster through timber, metal, and plasterboard. Both tools are moderate power consumers. A 2.5Ah battery handles most jobs; 4.0Ah is better for extended cutting sessions.
Compatible models: R18JS7 (jigsaw), RRS1801M (reciprocating saw), R18RCS (circular saw variant), R18JS (standard jigsaw).
Best battery: RB18L25 or RB18L40 for jigsaws; RB18L40 or PBP004 for reciprocating saws.
Angle Grinders
Angle grinders cut and grind metal, stone, and masonry. They draw significant current, especially under load. Always use at least a 4.0Ah battery; 5.0Ah or 6.0Ah is recommended for sustained grinding or multiple cuts.
Compatible models: R18AG7 (115mm grinder), RAG18X (high-torque variant), R18AG (standard), R18AGBL (brushless).
Best battery: RB18L50 or PBP007 for reliable performance; RB18L40 or PBP004 as minimum for light grinding.
Sanders & Multi-Tools
Random orbital sanders smooth timber and composite surfaces; multi-tools handle sanding, cutting, and scraping. These are lighter duty than saws and grinders. A 2.0Ah battery is usually adequate; 4.0Ah gives longer operation between charges.
Compatible models: R18ROS (random orbital sander), R18MT7 (multi-tool), R18EOS (edge sander), R18PCS (plate compactor sander).
Best battery: RB18L20 or PBP003 for light sanding; RB18L40 or PBP004 for extended sessions.
Nailers & Staplers
Cordless nailers and staplers are low-power tools, perfect for fastening trim, upholstery, and roofing. They consume very little battery per use, so a 1.5Ah battery is often sufficient. Larger batteries simply mean longer intervals between charging.
Compatible models: R18N18G (18-gauge nailer), R18GS18 (stapler), R18AF (finish nailer), R18CN18 (coil nailer variant).
Best battery: RB18L15 or PBP002 for light fastening; RB18L20 or PBP003 for full-day work.
Garden Tools
Ryobi’s garden range is extensive: hedge trimmers, grass shears, leaf blowers, chainsaws, and cultivators. Garden tools are popular in the UK market and come in a wide range of power levels. String trimmers and hedge cutters benefit from 4.0Ah or larger batteries; chainsaws need 5.0Ah minimum.
Compatible models: RLM18X36H250 (lawnmower, 2-battery system), OLT1832 (trimmer/edger), RHT1851 (hedge trimmer), RCS1835 (compact chainsaw), RBL1820B (leaf blower), RCS1835G (chainsaw with case).
Best battery: RB18L40 or PBP004 for hedge trimmers and string trimmers; RB18L50 or PBP007 for chainsaws and multi-tool garden equipment; RB18L25 or PBP003 for blowers and light cutting.
Lighting & Vacuums
Ryobi’s worksite lighting and wet/dry vacuums are popular for site work and cleanup. Lights are very low-power; vacuums consume moderate power. A 2.0Ah battery runs most lights for many hours; vacuums benefit from 4.0Ah or larger.
Compatible models: R18ALF (LED area light), R18HV (hand vacuum), R18PV (portable vacuum), R18CTLED (compact task light).
Best battery: RB18L15 or PBP002 for lighting; RB18L40 or PBP004 for vacuums.
Charger Compatibility
All Ryobi ONE+ 18V chargers work with all ONE+ 18V batteries. The difference is charging speed and convenience. Here’s the full range available in the UK:
| Charger Model | Type | Charge Rate | Charge Time (2.0Ah) | Charge Time (5.0Ah) | Best For |
|---|---|---|---|---|---|
| RC18115 | Standard 1.5A | 1.5 amps | ~85 mins | ~210 mins (3.5 hrs) | Starter kits, hobby users, slow overnight charging |
| RC18120 | Compact 2.0A | 2.0 amps | ~60 mins | ~150 mins (2.5 hrs) | Most users, good balance of speed and size |
| RC18150 | Super Fast 5.0A | 5.0 amps | ~20 mins | ~50 mins | Professional users, busy job sites, multiple batteries |
| RC18627 | 6-Port Sequential | Variable per port (staggered charging) | Varies | Varies | Contractors with many batteries, site charging stations |
IntelliPort technology: Modern Ryobi chargers include IntelliPort, which monitors each battery’s condition and adjusts charge rate automatically. This protects older batteries from overcharging and extends overall battery life. All chargers listed above support IntelliPort; older chargers (pre-2015) do not. If you’re upgrading your charger, the RC18120 is the best value for most users — it charges faster than the standard model and is cheaper than the super-fast RC18150.
Cross-Compatibility — ONE+ 18V vs 36V/40V
Ryobi also makes 36V and 40V/40V HP cordless tools, but these are NOT compatible with ONE+ 18V batteries. The 36V system uses two 18V batteries in a series configuration (joined together in a single pack), which creates a different form factor and voltage. The 40V system uses a completely different battery design. No adapters exist, and mixing battery types will damage the charger or tool.
If you’re considering expanding your Ryobi collection, decide early whether you’re staying with ONE+ 18V (excellent for hand tools and smaller jobs) or moving to 40V/40V HP (better for garden equipment and heavy-duty work). You can own both systems, but they don’t share batteries. For detailed information about cross-platform compatibility, see our battery compatibility chart and general FAQ.
Where to Buy Ryobi ONE+ Batteries in the UK
Ryobi ONE+ batteries are widely available in the UK from three main retailers:
- B&Q — Full range of standard and HP batteries, often with bundle deals and starter kits
- Screwfix — Competitive pricing, fast delivery, all battery capacities in stock
- Amazon.co.uk — Largest selection, often the cheapest, convenient next-day delivery
Starter kits (tool + battery + charger) are excellent value if you’re new to Ryobi. B&Q and Screwfix frequently discount kits; Amazon usually has competitive pricing on individual batteries. If you’re buying multiple batteries, check Screwfix and B&Q for bundle deals — three or four batteries together are often cheaper than buying individually.
View Ryobi ONE+ batteries on Amazon.co.uk
Frequently Asked Questions
Are all Ryobi ONE+ batteries interchangeable?
Yes. Every ONE+ 18V battery made by Ryobi, regardless of capacity or whether it’s standard or HP, will fit every ONE+ 18V tool. A 1.5Ah battery from 2010 will work in a brand-new drill released in 2026. Ryobi has never changed the battery interface, so backward compatibility is guaranteed. However, older batteries (pre-2015) lack IntelliPort charge monitoring, so modern chargers may not optimise their charging cycle.
Do Ryobi HP batteries work in standard ONE+ tools?
Yes. HP batteries work in every ONE+ 18V tool, including standard (non-HP) tools. They deliver their full 30% power boost in HP-designated tools and standard power levels in older tools. There’s no risk of damage or incompatibility — HP batteries are simply more powerful and expensive versions of standard batteries.
Can I use Ryobi 18V batteries in 40V tools?
No. ONE+ 18V batteries will not fit 40V Ryobi tools. The battery connectors, voltage, and form factors are completely different. Ryobi’s 40V/40V HP system is a separate platform. Attempting to force an 18V battery into a 40V tool will cause damage. If you want to use 40V tools, you must buy 40V batteries and chargers — they don’t work with existing 18V equipment.
How long do Ryobi ONE+ batteries take to charge?
Charge time depends on battery capacity and charger model. The standard RC18120 (2.0A) charger takes about 60 minutes for a 2.0Ah battery and 150 minutes for a 5.0Ah battery. The faster RC18150 (5.0A) charger cuts these times significantly: roughly 20 minutes for 2.0Ah and 50 minutes for 5.0Ah. The entry-level RC18115 (1.5A) charger is slower but is usually included in starter kits and is fine if you don’t mind overnight charging.
Which Ryobi battery is best for garden tools?
For garden tools, capacity matters. String trimmers and hedge cutters work well with 4.0Ah batteries (RB18L40 or PBP004), while chainsaws and larger equipment benefit from 5.0Ah or 6.0Ah (RB18L50 or RB18L60 for standard; PBP007 for HP). If you’re using a lawnmower or multi-tool garden kit that requires two batteries simultaneously, invest in two 4.0Ah or larger batteries so one charges while you’re working. HP batteries are worth the extra cost for garden tools because they maintain power better in tough cutting conditions.
Are old Ryobi batteries compatible with new tools?
Yes, old Ryobi ONE+ 18V batteries (even from the early 2010s) will fit and work in modern tools. However, older batteries lack the IntelliPort smart charging interface, so modern chargers may not charge them optimally. If you have vintage batteries, they’re still usable — they’ll just have shorter runtime than modern equivalents and may not charge as efficiently. It’s generally more cost-effective to replace very old batteries than to keep using them.
Can I use third-party batteries in Ryobi ONE+ tools?
Technically, yes — third-party ONE+ 18V batteries from brands like Craftsman (which use the same platform in some regions) will physically fit Ryobi tools. However, we don’t recommend it. Third-party batteries often lack proper quality control, safety certifications, and IntelliPort compatibility. They may damage your charger or tool over time. Stick with genuine Ryobi batteries to ensure safety and warranty coverage. Ryobi batteries are affordable enough that buying genuine is always the better choice. For more information about cross-brand compatibility, see our battery compatibility chart.
