Many budget brands use a pack that looks like the Aldi Workzone Xfinity Plus pack. Owners group them into versions A to D.
Watch out: Same shape, but polarity is reported to differ between versions. Do not mix versions: there is a risk of electrical damage. Newer Xfinity Ultra 21700 packs are pin-compatible but are reported not to latch securely in older tools.
| Brand and line | Voltage | Sold at | Version | Membership | Notes |
|---|---|---|---|---|---|
| Baumr 20V | 20V | Kogan | B | Disputed | An owner disputes that this brand fits the others. |
| Bayer 18V | 18V | Sydney Tools | B | Disputed | An owner disputes that this brand fits the others. |
| Certa 20V | 20V | Kogan | C | Disputed | An owner disputes that this brand fits the others. |
| Giantz 20V | 20V | Kogan | D | Disputed | An owner disputes that this brand fits the others. |
| Greenlund 18V | 18V | Catch | B | Inferred | |
| Matrix X-One 20V | 20V | – | C | Inferred | |
| PowerG 20V | 20V | Autobarn | A | Inferred | |
| Rockwell Shopseries | 20V | Supercheap Auto | Not recorded | Inferred | Version not recorded. |
| Workzone Xfinity Plus 20V | 20V | Aldi | A | Inferred |
Voltage labels differ by market: many “20V max” packs are the same nominal 18V pack.