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Einhell 18V or 36V lawn mower

Updated: October 2026

You already own an Einhell Power X-Change pack, or the title in front of you says 36 V, and you need to know whether that is a different battery. It is not. An Einhell 18V or 36V lawn mower in this amazon.co.uk set uses the same 18 V family: one pack in a single bay, or two packs seated together so the deck sees 36 V. One drill pack will not run a two-bay mower. The [Einhell cordless lawnmower comparison](/hub/lawn-and-garden-equipment/einhell-cordless-lawnmower) holds the ten rows, from about £83.94 to about £259.99 on 19 October 2026. This page only sorts the bays. Nobody here ran a motor. A qualifying purchase can earn a commission at no extra cost to you.

You already own an Einhell Power X-Change pack, or the title in front of you says 36 V, and you need to know whether that is a different battery. It is not.

Our top picks

Einhell Einhell RASARRO 36/34 kit

Best overall

Einhell Einhell RASARRO 36/34 kit
8.8/10about £237.99
View offer
Einhell Einhell GP-CM 36/41 Li solo

Alternative

Einhell Einhell GP-CM 36/41 Li solo
8.8/10about £249
View offer
Einhell Einhell GE-CM 18/30 Li kit

Best value

Einhell Einhell GE-CM 18/30 Li kit
8.4/10about £83.94
View offer
On this page
  1. 1.What the 36 V badge means
  2. 2.The one-pack mowers in this set
  3. 3.The two-pack mowers
  4. 4.What does not follow

What the 36 V badge means

Einhell’s UK lawn-mower category describes Twin-Pack as two 18 V Power X-Change packs in the tool at once. Every pack in that family is an 18 V pack. You do not buy a larger 36 V cell and slide it into a drill. A 36 V mower in this set takes two packs together, and a single pack left on the shelf will not start the deck. The badge is a seating arrangement, not a second brand. A Ryobi or Bosch pack does not fit. 18 V, and 36 V made from two 18 V packs, sit under the 42 V DC line in BS EN 60335-2-77:2010. That is a catalogue scope note, not a certificate for these ten listings.

The one-pack mowers in this set

Six listings take one Power X-Change pack. The GE-CM 18/30 Li kit is about £83.94 with a 3.0 Ah pack and a fast charger. The GE-CM 18/30 Li solo is about £89.99 with no pack. The GE-CM 18/32 Li solo is about £83.94 with no pack. The GE-CM 18/32 C Li BL solo is about £149.95 with no pack. The GE-CM 18/33 Li solo is about £119 with no pack. The GE-CM 18/33 Li kit is about £149.95 with a 4.0 Ah pack and a fast charger. Einhell treats packs in the family as interchangeable, so a 4.0 Ah pack can sit in a mower sold with a 3.0 Ah. That does not promise a longer cut. Runtime was not measured here. Width and bag conflicts stay on the buying guide.
Einhell Einhell RASARRO 36/34 kit

Testsieger

Einhell Einhell RASARRO 36/34 kit
8.8/10about £237.99
View offer

The two-pack mowers

Four listings need two packs in the deck at once. The RASARRO 36/34 is about £237.99 with two 3.0 Ah packs, two chargers and a safety key. Einhell.co.uk for article 3413222 calls that Twin-Pack technology, 2x 18 V, and describes a brush motor. The amazon bullets do not say brushless. A specification cell says 36 cm against a 34 cm bullet. A RASARRO 36/42 manual is a different model. Do not copy its 42 cm cut into this row. The GE-CM 36/36 Li kit is about £259.99 with two 4.0 Ah packs and two chargers. The GE-CM 43 Li M kit is about £239.94 with two 4.0 Ah packs and two fast chargers. The GP-CM 36/41 Li solo is about £249 with no packs in the box, so you still supply two Power X-Change packs. Brushless is stated on the 36/36, the 43 cm kit and the 41 cm body. It is not stated on the RASARRO amazon bullets. Two packs do not double the minutes. Nothing here was timed on a lawn.

What does not follow

A 36 V badge is not, by itself, a larger lawn. The 18/33 kit prints both up to 200 m² and up to 20 m². Double Twin-Pack, four slots, does not appear in this capture. Do not buy a fourth pack because a diagram showed it.

Common questions

Is 36 V a bigger battery I can also put in a drill?
No. In this set, 36 V means two 18 V Power X-Change packs in the mower at the same time. Each pack is still an 18 V pack, and a drill takes one of them. You cannot slide a single 36 V battery into the drill, because that object is not what these listings sell. Leave one pack out and a two-bay deck has an empty seat.
Which listings in this set need two packs?
The RASARRO 36/34, the GE-CM 36/36 Li, the GE-CM 43 Li M and the GP-CM 36/41 Li. The first three name two packs in the carton. The 41 cm listing does not, so the about £249 sticker is still a body. One pack will not run any of them.
Which listings need one pack?
The 18/30 kit and solo, the 18/32 Li solo, the 18/32 C solo, and the 18/33 solo and kit. Only the 18/30 kit and the 18/33 kit include a pack. The other four are bodies you power yourself with a pack you already own.
Will my 4.0 Ah pack run an 18 V mower that came with a 3.0 Ah?
Yes, if it is an Einhell Power X-Change pack. Einhell treats packs in that family as interchangeable, so the amp-hour size in the kit is what the carton included, not a lock on the bay. A 3.0 Ah pack can sit in a mower sold with a 4.0 Ah as well. This page does not promise that the larger pack finishes more of your lawn. That was not timed.
Does Double Twin-Pack appear here?
No. Einhell’s category page describes Double Twin-Pack as four slots. None of these ten amazon.co.uk listings is that layout. Do not add a third or fourth pack because a diagram on the maker’s site showed four bays. Twin-Pack in this set stops at two 18 V packs.
Are Bosch or Ryobi packs the same fit?
No. These decks take Einhell Power X-Change packs. A pack from another brand is not a substitute, even when the voltage looks the same. One UK review on the 18/30 solo also says batteries from an advertised strimmer bundle did not fit. If the pack is not in Einhell’s family, assume it will not click in.

Related pages

Einhell lawn mower battery included

How to use an Einhell cordless lawn mower

Einhell cordless lawnmower

Best Einhell cordless lawn mower, with a condition

Einhell cordless lawn mower buying guide: box first

Sources

Sources from the research digest. Listing prices, stars and review counts are the amazon.co.uk captures of 19 October 2026. Scores were applied on 22 October 2026.

  1. Einhell Twin-Pack battery system (retrieved 19.10.2026)
  2. Einhell RASARRO 36/34, article 3413222 (retrieved 19.10.2026)
  3. Einhell GE-CM 18/33 Li kit, article 3413260 (retrieved 19.10.2026)
  4. Outdoor noise regulations 2001, Schedule 3 (retrieved 19.10.2026)
  5. RHS, how to mow a lawn (retrieved 19.10.2026)
  6. BBC Gardeners' World, best cordless lawn mowers (retrieved 19.10.2026)
  7. Which? Einhell GE-CM 18/33 Li (retrieved 19.10.2026)
  8. Consumer Rights Act 2015, section 9 (retrieved 19.10.2026)