Erbauer is a Kingfisher brand (sold at Screwfix and B&Q), and its EXT battery system spans a big 18V tool range plus 36V garden machines via dual-voltage packs. This chart covers what fits what — including the 12V catch and the Evolution cross-over question.
Quick Answer
- All Erbauer 18V EXT batteries fit all Erbauer 18V EXT tools — drills, saws, grinders, sanders, multi-tools and more run on the same packs; Screwfix listings describe the ERI-series packs as compatible with all Erbauer 18V EXT products.
- The 18/36V dual-voltage EXT packs (3.0/6.0Ah and 4.0/8.0Ah) are officially “compatible with all cordless 18V, 36V and 72V (2×36V) Erbauer EXT tools” — one battery for the drill and the lawnmower.
- The 12V EXT range is separate. Erbauer’s 12V tools (ECD12-Li-2, EID12-Li-2 and friends) use their own 12V packs (EHPB12-Li-3) and charger — 12V and 18V packs do not interchange.
- Erbauer EXT and Titan TXP: we found no stated cross-compatibility between these two Screwfix-sold systems, so treat them as separate.
Erbauer EXT 18V Battery Line-Up
| Battery | Voltage | Capacity | Notes |
|---|---|---|---|
| ERI1098BAT | 18V | 2.0Ah | Compact pack for drills/drivers |
| ERI1099BAT | 18V | 4.0Ah | General-purpose |
| ERI1100BAT | 18V | 5.0Ah | “Compatible with all Erbauer 18V EXT products” (Screwfix); Keep Cool tech, charge indicator |
| EHPB18-Li-4 | 18V | 4.0Ah Elitecell | Elitecell pack with Keep Cool technology |
| 18/36V EXT | 18/36V | 3.0/6.0Ah | Fits all 18V, 36V and 72V (2×36V) EXT tools |
| 18/36V EXT | 18/36V | 4.0/8.0Ah | Fits all 18V, 36V and 72V (2×36V) EXT tools |
Recommended Batteries
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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.
Seen an EBAT18-Li code on an older pack? Those are earlier EXT 18V part numbers (the 5.0Ah EBAT18-Li-5 is still listed by Screwfix UK). They belong to the same EXT 18V system. Screwfix notes that the EXT range is not compatible with previous non-EXT Erbauer tools and batteries.
Chargers
| Charger | Charges |
|---|---|
| Erbauer 18V EXT charger | EXT 18V packs |
| 18V EXT dual-battery charger | Two EXT 18V packs |
| UKFC212BS 18/36V dual charger | 18/36V dual-voltage packs |
| ERI1104ACC USB adaptor | Turns an EXT pack into a USB power bank |
| EBFC12-Li 12V fast charger | 12V EXT packs only |
Which Tools Take EXT 18V Batteries?
The 18V EXT range covers combi drills (ECD18-Li-2), impact drivers (EID18-Li), circular/reciprocating/mitre saws, angle grinders, planers, sanders, multi-tools, paddle mixers, vacuums, radios and torches, plus multi-tool kits like the E18-6KA 6-piece. On the 36V side, EXT dual-voltage packs power the garden range including the 41cm brushless lawnmower. If the tool says EXT and matches the battery voltage (or the battery is dual-voltage), it fits.
The Evolution Question
Evolution Power Tools sells 18V EXT batteries (e.g. the 8.0Ah R18BAT-Li8), but we could not confirm on Evolution or Erbauer (Kingfisher) sources that they fit Erbauer EXT tools. Do not assume they interchange; check with the maker before mixing them.
How EXT Compares to Other Value Platforms
Erbauer EXT sits alongside Titan TXP (another battery system sold at Screwfix; we found no stated cross-compatibility), Parkside 20V, Einhell Power X-Change and Worx PowerShare. For the full market view see the power tool battery compatibility chart.
Where to Buy
Erbauer EXT batteries and tools are sold at Screwfix and B&Q; some marketplace listings also appear on Amazon UK. As an Amazon Associate we earn from qualifying purchases.
🛒 Check Erbauer EXT listings on Amazon UK →
Frequently Asked Questions
Do all Erbauer batteries fit all Erbauer tools?
Within a voltage family, yes: every 18V EXT pack fits every 18V EXT tool, and the 18/36V packs fit 18V, 36V and 72V (2×36V) EXT tools. The 12V EXT range uses its own separate packs.
Are Erbauer and Titan batteries interchangeable?
We have found no statement from Screwfix or Kingfisher that Erbauer EXT and Titan TXP batteries interchange, so treat them as separate systems.
Can I use Evolution batteries in Erbauer tools?
Evolution sells 18V EXT batteries, but we could not confirm on Evolution or Erbauer (Kingfisher) sources that they fit Erbauer EXT tools. Do not assume they interchange; check with the maker before mixing them.
What’s the warranty on Erbauer batteries?
It depends on the pack: Screwfix lists a 1-year guarantee for the ERI1098BAT, ERI1099BAT and ERI1100BAT, and 2 years (T&Cs apply) for the EHPB18-Li-4, EBAT18-Li-5 and 18/36V EXT packs. Check the current listing for the pack you are buying.
How We Compile This Guide
Compatibility details on this page were read directly from Screwfix’s official Erbauer EXT product listings, and B&Q listings; we could not confirm the Evolution compatibility claim on Evolution’s own site. Re-checked 26 October 2026.
Disclaimer: This guide is for general information only. Always confirm compatibility against the manufacturer’s documentation or the markings on your tool and battery before buying or using any battery. We accept no liability for incorrect fitment; use at your own risk.
