# Which batteries work with Ryobi 80V HP?

> Ryobi 80V HP shares batteries with Ryobi 40V, in one direction only. The note on each link says which way it works and names its source.

- **Ryobi 40V** — pack fits directly, one way. Confidence: reported. Source says: "4 brushless motors, (2) 80V 10Ah batteries, and (2) 40V 12Ah batteries" [Source](https://espanol.ryobitools.com/products/details/46396040923), checked 2026-10-08. One way and model-specific: the 42 in (RYRM8021) and 54 in (RYRM8034) 80V HP zero-turns also run on 40V packs; the 30 in (RYRM8010) takes 80V packs only. 80V packs do not run 40V tools (no source says they do). Brand statement read from a search result, so 'reported' until the page is read directly.
- Line: [Ryobi 80V HP](https://powertoolgrid.com/lines/ryobi-80v-hp/)
- Every sourced battery fit: https://powertoolgrid.com/battery-swap/
- Page: https://powertoolgrid.com/battery-swap/ryobi-80v-hp/

---
"Confirmed" = the brand's own page says it; "reported" = a source says it, seen through search or a store page; "inferred" = worked out from evidence nobody states outright. PowerToolGrid does not list a fit it cannot source. [How we compare](https://powertoolgrid.com/how-we-compare/).