What do the letters at the end of Ryobi model numbers mean?

By Rob, licensed electrician (Australia), 18 years on the tools · Checked 2026-10-16 against Ryobi's US product pages

On Ryobi US model numbers, B means bare tool: no battery or charger; K means kit with a battery and a charger (usually); K1 means kit, usually with one battery and a charger (usually); K2 means kit, usually with two batteries and a charger (usually).

Ryobi (18V ONE+) model numbers end in B for the bare tool and K for a kit. The number after K does not reliably count the batteries, and a few bare tools (P262) have no letter at all.

Ryobi model number endings

Ending	Means	Ryobi models we cover with it
`B` always	Bare tool: no battery or charger [maker page]	PBLAG01B, PBLAG02B, PBLCS302B, PBLDD02B, PBLHM102B, PBLID02B, PBLID04B, PBLIW01B, PBLMT51B, PBLRS01B, PBLRS02B, PCL206B, PCL220B, PCL235B, PCL265B, PCL430B, PCL445B, PCL500B, PSBCS01B, PSBDD02B, PSBHM02B, PSBID02B, PSBRS01B
`K` usually	Kit with a battery and a charger [maker page]	PBLID02K, PSBDD02K, PSBID02K
`K1` usually	Kit, usually with one battery and a charger [maker page]	P262K1, PBLAG01K1, PBLAG02K1, PBLDD02K1, PBLHM102K1, PBLIW01K1, PBLMT51K1, PBLRS01K1, PCL206K1, PCL220K1, PCL265K1, PCL430K1, PCL445K1, PCL500K1, PCL515K1, PSBCS01K1, PSBHM02K1
`K2` usually	Kit, usually with two batteries and a charger [maker page]	PCL235K2

What the Ryobi ending does not tell you

Rules checked 2026-10-18 against the box lists on Ryobi's own pages; the box list on each page is authoritative.
PCL220K1 ships two 1.5Ah batteries, not one: the number after K is not a battery count. Read the box list.

"Usually" means we found exceptions or too few examples to call it a rule. The box list on each model page, taken from Ryobi's own page, is what to trust. For battery counts and sizes across every kit we cover, see what ships in each kit.

Other brands

DEWALT model numbers, Milwaukee model numbers, Makita model numbers, Craftsman model numbers, Bosch model numbers.