Ryobi UK says ONE+ has over 200 tools sharing the same 18V battery platform. It is aimed at homeowners and DIY users, and is sold through B&Q, Screwfix and Amazon.co.uk among others, with 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 the ONE+ 18V batteries on Ryobi UK’s site, which tools they’re compatible with, charger options, and the difference between Compact and High Energy packs.
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. Ryobi says the ONE+ “push in” battery fitting has been consistent since 1996.
- High Energy, EDGE and Compact packs all fit ONE+ tools. Ryobi says its High Energy batteries are compatible with all ONE+ tools and give 3 times more runtime and 20% more power than its previous lithium technologies.
- ONE+ 18V and 36V MAX POWER are separate. Ryobi says you cannot use 36V batteries in 18V tools or interchange chargers between voltage ranges. We found no Ryobi adapter and no Ryobi statement that ONE+ packs fit 36V tools.
- Ryobi’s current ONE+ chargers take all ONE+ 18V lithium-ion batteries. Ryobi says this for the RC18120A, RC18150 and RC18240; charge time depends on the charger’s output.
- Older ONE+ batteries still fit. Ryobi says the ONE+ battery fitting has been consistent since 1996.
Every Ryobi ONE+ 18V Battery
The first table lists older UK packs and North American HP packs that are still sold online; the second lists the ONE+ batteries on Ryobi UK’s current site, with Ryobi’s own specifications.
| Battery Model | Capacity | Type | Key Features | Best For | Buy |
|---|---|---|---|---|---|
| RB18L15 | 1.5Ah (older UK model; not on Ryobi UK’s current site) | Older standard | Compact, lightweight | Light-duty work | Buy on Amazon |
| RB18L20 | 2.0Ah (older UK model; not on Ryobi UK’s current site) | Older standard | Everyday work | Drills, drivers, hand tools | Buy on Amazon |
| RB18L25 | 2.5Ah (older UK model; not on Ryobi UK’s current site) | Older standard | Extended runtime over 2.0Ah | General-purpose workshop tools | Buy on Amazon |
| RB18L40 | 4.0Ah (older UK model; not on Ryobi UK’s current site) | Older standard | Longer runtime | Saws, sanders, garden tools | Buy on Amazon |
| RB18L50 | 5.0Ah (older UK model; not on Ryobi UK’s current site) | Older standard | Extended capacity | Garden equipment, extended jobs | Buy on Amazon |
| RB18L60 | 6.0Ah (older UK model; not on Ryobi UK’s current site) | Older standard | Higher capacity | Heavy-duty use, backup battery | Buy on Amazon |
| PBP002 | Not confirmed (North American HP model; not sold by Ryobi UK) | HP (North America) | Not confirmed | — | Buy on Amazon |
| PBP003 | 2.0Ah (North American HP model; not sold by Ryobi UK) | HP (North America) | Compact HP pack | General drilling and driving | Buy on Amazon |
| PBP004 | 4.0Ah (North American HP model; not sold by Ryobi UK) | HP (North America) | Larger HP pack | Saws, heavier drilling | Buy on Amazon |
| PBP007 | Not confirmed (North American HP model; not sold by Ryobi UK) | HP (North America) | Not confirmed | — | Buy on Amazon |
Genuine batteries, chargers and kits for this platform
As an Amazon Associate we earn from qualifying purchases. Genuine packs only; check the listing matches your platform before buying (affiliate links).
Before you buy: check that the size, fitting/bore and maximum-rated speed marked on the accessory match what your tool’s manual specifies. We have not physically tested these products; listings are compiled from published specifications. These are affiliate links.
Current ONE+ batteries on Ryobi UK’s site
| Ryobi UK model | Capacity | Type (Ryobi’s name) | Weight | Charge time on RC18150 (Ryobi) |
|---|---|---|---|---|
| RB1820C | 2.0Ah | Compact Lithium | 0.4 kg | 30 min |
| RB1825C | 2.5Ah | Lithium | 0.4 kg | 40 min |
| RB1840X | 4.0Ah | Compact Lithium | 0.7 kg | 50 min |
| RB1850X | 5.0Ah | Compact Lithium | 0.7 kg | 60 min |
| RB1860X | 6.0Ah | Compact Lithium | 0.7 kg | 75 min |
| RB1840E | 4.0Ah | EDGE | 0.68 kg | Not stated |
| RB1840T | 4.0Ah | Lithium+ High Energy | 0.72 kg | 50 min |
| RB1880T | 8.0Ah | Lithium+ High Energy | 1.3 kg | 100 min |
| RB18120T | 12.0Ah | Lithium+ High Energy | 1.7 kg | 150 min |
| RB18242X | 4.0Ah + 2.0Ah dual pack | Lithium | 0.7 kg | 50 min |
Get the free Power-Tool Battery Compatibility Handbook (PDF)
Which batteries fit which tools — cross-brand, adapters & Ah, decoded.
Standard vs HP Batteries — What’s the Difference?
Ryobi UK’s higher-capacity ONE+ packs carry the High Energy label (RB1840T, RB1880T and RB18120T). Ryobi says High Energy batteries are compatible with all ONE+ tools and give 3 times more runtime and 20% more power than its previous lithium technologies.
The HP (High Performance) name is used for Ryobi’s North American packs, such as the PBP003 and PBP004; we found no Ryobi UK HP battery listing. We have no Ryobi source for extra contacts or a 30% power figure, so we do not repeat those claims.
Every pack in both tables uses the ONE+ fitting, which Ryobi says has been consistent since 1996, so you do not need separate batteries for old and new tools.
Which should you buy? Choose on capacity and weight. Ryobi UK lists the 2.0Ah RB1820C at 0.4 kg, the 4.0–6.0Ah Compact packs at 0.7 kg and the 12.0Ah RB18120T at 1.7 kg. If you already own older packs, keep using them — they fit the same tools and chargers.
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: a 4.0Ah pack (RB1840X) for general use; a 2.0Ah pack (RB1820C) for light work; a 5.0–6.0Ah pack (RB1850X or RB1860X) 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: a 2.0Ah pack (RB1820C) for fastening work; a 4.0Ah pack (RB1840X) 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: a 4.0Ah pack (RB1840X) minimum; a 5.0–6.0Ah pack (RB1850X or RB1860X) 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: a 2.5–4.0Ah pack (RB1825C or RB1840X) for jigsaws; a 4.0Ah pack (RB1840X) 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 include the R18AG-0 (115mm), RAG18115-0 (115mm), RAG18125-0 (125mm) and RAG18X125-0 (125mm, brushless ONE+ HP).
Best battery: a 5.0–6.0Ah pack (RB1850X or RB1860X) for reliable performance; a 4.0Ah pack (RB1840X) 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: a 2.0Ah pack (RB1820C) for light sanding; a 4.0Ah pack (RB1840X) 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: a 2.0Ah pack (RB1820C) for light fastening; a 2.0Ah pack (RB1820C) 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), OCS1830 (chainsaw), RBL1820B (leaf blower).
Best battery: a 4.0Ah pack (RB1840X) for hedge trimmers and string trimmers; a 5.0–6.0Ah pack (RB1850X or RB1860X) for chainsaws and multi-tool garden equipment; a 2.0–2.5Ah pack (RB1820C or RB1825C) 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: a 2.0Ah pack (RB1820C) for lighting; a 4.0Ah pack (RB1840X) 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 |
|---|---|---|---|---|---|
| RC18120A | 2.0 A charger | 2.0 A | Ryobi: to 80% in about 1 hour | Not stated | Basic home use |
| RC18150 | 5 A charger | 5.0 A | 30 min (RB1820C) | 60 min (RB1850X) | Most users |
| RC18180 | Rapid charger | 8.0 A | 30 min | 50 min | Ryobi’s fastest ONE+ charger; USB-C and USB-A ports |
| RC18240 | 2-port parallel | 4 A for one pack, or 2 A each for two | 30 min | 75 min | Charging two packs at once |
| RC18640 | 6-port sequential | 4.0 A | 30 min | 75 min | Many batteries; charges one at a time |
Rule of thumb: Ryobi says to divide the battery capacity (Ah) by the charger output (A) for a rough guide to charging time. For most users the RC18150 balances speed and price; the RC18180 is faster.
Cross-Compatibility — ONE+ 18V vs 36V/40V
Ryobi UK’s higher-voltage range is 36V MAX POWER (40V in North America). Ryobi says you cannot use 36V batteries in 18V tools or interchange chargers between voltage ranges. We found no Ryobi adapter, and no Ryobi statement that ONE+ packs fit 36V tools, so keep the two systems separate.
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 adding 36V MAX POWER (Ryobi’s higher-voltage garden range). You can own both systems, but they don’t share batteries or chargers. 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 — check the model number against the tables above
- Screwfix — check the model number against the tables above
- Amazon.co.uk — check the seller and the model number
Starter kits (tool + battery + charger) can be good value if you are new to Ryobi; compare the kit price with buying a battery and charger separately.
View Ryobi ONE+ batteries on Amazon.co.uk
Watch: Video Guide
Frequently Asked Questions
Are all Ryobi ONE+ batteries interchangeable?
Yes. Ryobi says the ONE+ “push in” battery fitting has been consistent since 1996, and its current ONE+ chargers are compatible with all ONE+ 18V lithium-ion batteries.
Do Ryobi HP batteries work in standard ONE+ tools?
HP (High Performance) is the name of Ryobi’s North American packs; we found no Ryobi UK HP battery listing. Ryobi UK says its High Energy packs are compatible with all ONE+ tools.
Can I use Ryobi 18V batteries in 40V tools?
No. Ryobi’s higher-voltage range (36V MAX POWER in the UK, 40V in North America) is a separate platform. Ryobi says you cannot use 36V batteries in 18V tools or interchange chargers between voltage ranges, and we found no Ryobi adapter.
How long do Ryobi ONE+ batteries take to charge?
It depends on the charger and the pack. Ryobi’s own figures: the RC18150 (5 A) charges the 2.0Ah RB1820C in 30 minutes and the 5.0Ah RB1850X in 60 minutes; the RC18180 Rapid charger takes 30 minutes for 2.0Ah and 50 minutes for 5.0Ah; the RC18120A (2 A) charges a 2.0Ah pack to 80% in an hour. As a rule of thumb, Ryobi says to divide the battery capacity (Ah) by the charger output (A).
Which Ryobi battery is best for garden tools?
For garden tools, capacity matters most. A 4.0Ah pack (RB1840X or the High Energy RB1840T) suits trimmers and hedge cutters; larger tools benefit from 5.0Ah and up (RB1850X, RB1860X, or the High Energy RB1880T and RB18120T). Tools that take two batteries need two packs, so a second pack lets one charge while you work.
Are old Ryobi batteries compatible with new tools?
Yes. Ryobi says the ONE+ battery fitting has been consistent since 1996, so older ONE+ packs fit current tools. Older packs hold less charge as they age, so runtime will be shorter.
Can I use third-party batteries in Ryobi ONE+ tools?
Third-party packs are not part of Ryobi’s ONE+ system, and we have not tested any. Ryobi’s chargers are listed for Ryobi ONE+ lithium-ion batteries, so check the warranty position before using a third-party pack. For more on cross-brand compatibility, see our battery compatibility chart.
How we compile this guide
We cross-reference compatibility details against manufacturer specifications where available, official tool manuals, and the physical standards that govern fitment (bore sizes, arbor diameters, voltage platforms, connector types). We prioritise primary sources over retailer listings, flag anything we can’t confirm, and re-verify the data on a regular cycle. Where we give a buying recommendation, we tell you the reasoning — not just the link. More on our method →
