Ryobi angle grinder battery size

Updated: 22 October 2026

The green body is in the basket at a price that looks finished, and there is no pack in the picture. Ryobi angle grinder battery size is the part the bare listing leaves you to solve.

The green body is in the basket at a price that looks finished, and there is no pack in the picture. Ryobi angle grinder battery size is the part the bare listing leaves you to solve. You should leave knowing which ONE+ capacity Ryobi's cut table names, what UK reviews add about stalls, and when a kit is the honest first buy. The three bodies are on the Ryobi angle grinder comparison. Disc changes stay on the how to use a Ryobi angle grinder page. If you buy through our links, we may earn a commission at no extra cost to you.

Our top picks

Badge	Product	Battery in box	Pack the reviews name	Cut claim	Note	Price	Offer
Best overall	Ryobi Ryobi R18AG-0	Excluded	4 Ah and 5 Ah named	Up to 57 on 5.0 Ah	9.4	about £66.65	View offer
Alternative	Ryobi Ryobi RAG18BL-0	Excluded	Stalls under 5 Ah	Not the R18AG table	9.4	about £149.95	View offer
	Ryobi Ryobi PBLAG02B	Sold separately	No UK pack code	210 cuts, no Ah	8.8	about £87.71	View offer

Best overall

Ryobi Ryobi R18AG-0

9.4/10about £66.65

View offer

Alternative

Ryobi Ryobi RAG18BL-0

9.4/10about £149.95

View offer

Rank 3

Ryobi Ryobi PBLAG02B

8.8/10about £87.71

View offer

On this page

1.The bare price stops at the body
2.What Ryobi counts on the R18AG-0
3.What UK reviews add
4.If you own no packs

The bare price stops at the body

Every kept listing excludes the battery. The R18AG-0 and the RAG18BL-0 titles say the battery and charger are out. The PBLAG02B bullets say batteries are sold separately. About £66.65, about £149.95 and about £87.71 are body prices from 19 October 2026. None of them is the cost of a first grinder if you own no ONE+ packs. These grinders are the 18 V line. A higher amp-hour figure is more runtime and more weight, not a minute count. Ryobi's shop listed the bare R18AG-0 at £107.99 in the same week as the amazon capture of about £66.65. If you already have a charger with a UK 3-pin plug and fuse, you are not buying that part again. The body still does nothing until a pack exists.

What Ryobi counts on the R18AG-0

Ryobi's R18AG-0 table, checked on 21 October 2026, counts cuts, not minutes. It claims up to 17 cuts of 13 mm bar on 2.0 Ah, 21 on 2.5 Ah, 46 on 4.0 Ah, and 57 on 5.0 Ah. Those numbers belong to the R18AG-0. They do not transfer to the RAG18BL-0, or to the RAG18X125, which claims up to 90 cuts of 13 mm rebar on 5.0 Ah. We do not turn 57 cuts into minutes. Seventeen cuts on 2.0 Ah is a short job if each cut is one bolt. Forty-six is the claim on the 4.0 Ah pack, including the R18AG-140S kit. A heavier pack runs longer and weighs more. The table is a manufacturer claim, not a lab result from this site.

Testsieger

Ryobi Ryobi R18AG-0

9.4/10about £66.65

View offer

What UK reviews add

UK reviews are not a second test. On the R18AG-0, small packs run out quickly, especially on stone, and reviewers name 4 Ah and 5 Ah. A bigger pack does not fix a housing that blocks some angles. On the RAG18BL-0, reviewers say the tool stalls unless a large pack is fitted. One says anything under 5 Ah keeps stalling. Brushless did not retire the pack question. Ryobi's Australian support says grinding wants at least 4.0 Ah and ideally 5.0 Ah. That is Australia, not a UK rule. Disc class, if you are still choosing the body, is on the Ryobi angle grinder buying guide.

If you own no packs

If you own no ONE+ packs, the bare amazon price is the wrong comparison. Ryobi's R18AG-140S kit was £169.99 with a 4.0 Ah pack and a charger, and the 46-cut claim is the one on that pack. The kit is not an ASIN in the table. It is a weaker answer if you bought the RAG18BL and the reviews say under 5 Ah stalls. Then budget a 5 Ah pack on top of about £149.95. A 36 V pack is the wrong family. You do need one pack before either UK grinder does any work. The PBLAG02B bullets claim up to 210 cuts per charge, with no pack size beside that claim, and the written reviews are from the United States and Canada. We do not treat a UK ONE+ pack as approved for that US code.

Common questions

Will a 2.0 Ah pack run the grinder?

Ryobi's R18AG-0 table claims up to 17 cuts of 13 mm bar on 2.0 Ah. That is a short job, not a grinding session. UK reviews say small packs die quickly on stone. Australian support, which is not UK law, says a 2.0 Ah pack can cut out under load. Use it for a few bolts. Do not plan a patio on it.

What does Ryobi claim for a 5.0 Ah pack on the R18AG-0?

Up to 57 cuts of 13 mm bar. The same table says 46 on 4.0 Ah, 21 on 2.5 Ah and 17 on 2.0 Ah. The 57-cut line is the R18AG-0 only. It is not the RAG18BL figure and not the 90-cut claim on the RAG18X125. Up to is Ryobi's word, on bar, not a guarantee on your steel.

Are those claims minutes?

No. The table counts cuts. This page does not convert them, because the source does not. A slow cut in box section uses more of the pack than a nip through 13 mm bar. Stone in the UK reviews uses charge faster again. The listing has not given you a clock.

Is a 4.0 Ah kit enough to start?

The R18AG-140S at £169.99 is a 4.0 Ah pack and a charger with the R18AG body, and the claim for that pack is 46 cuts of 13 mm bar. It is a sensible start if you own nothing. It is a compromise if you bought the RAG18BL and the comments you trust say under 5 Ah stalls.

Will UK ONE+ packs from a drill fit?

Reviewers on the R18AG-0 and the RAG18BL-0 describe using ONE+ packs from other Ryobi tools. That is the 18 V system, not a 36 V pack. Clip-on is still something you confirm on your own pack. It is not evidence that the same pack is correct for the PBLAG02B, which names no UK pack.

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