The best battery lawn mower for most NZ households is the Bosch CityMower 18V-32-300, a complete kit that includes the mower, a 4.0Ah battery and a fast charger, so there’s nothing extra to buy before the first mow. Buyers already invested in a battery ecosystem are better served by one of the bare-tool “skin” options here, the Gardena PowerMax, Bosch EasyRotak 36-550 or Kärcher LMO 18-36, which drop the price by leaving out a battery and charger you may already own. A budget-friendly Greenworks skin and a compact, versatile trimmer-mower round out the list.
This guide compares six battery-powered mowers currently available in New Zealand, covering real specs, complete-kit vs bare-tool pricing, and genuine trade-offs, not marketing copy.
Quick comparison
| # | Product | Best for | Cutting width | Battery included? |
|---|---|---|---|---|
| 1 | Bosch CityMower 18V-32-300 | Best complete kit | 32cm | Yes, 4.0Ah + charger |
| 2 | Gardena PowerMax 32/36V P4A | Best cross-brand battery system | 32/36cm (blade dependent) | No, tool only |
| 3 | Bosch EasyRotak 36-550 | Best for larger lawns | 36cm | No, bare tool |
| 4 | Kärcher LMO 18-36 | Best smart display | 36cm | No, skin only |
| 5 | Greenworks 24V Cordless 33cm | Best budget established brand | 33cm | No, skin only |
| 6 | Compact cordless lawn trimmer-mower | Best for small patches and edges | Adjustable, handheld | Yes, included |
The 6 best battery lawn mowers in NZ
1. Bosch CityMower 18V-32-300 – Best Complete Kit
Bosch’s CityMower 18V-32-300 is built specifically for smaller gardens, and it’s the only mower on this list sold as a genuinely complete kit, the mower itself, a 4.0Ah battery, and a fast charger, all in one box. Made in Europe and designed in Germany, it weighs just 9.9kg, light enough to carry one-handed up a step or into a shed.
Cutting height is adjustable across three settings between 30mm and 60mm, and height-adjustable ErgoFlex handles let it suit different user heights without straining posture. An intelligent brushless motor delivers efficiency and endurance without adding bulk, and grass combs along the deck edge help it cut cleanly along walls and garden borders rather than leaving an untidy strip behind.
The included battery runs on Bosch’s POWER FOR ALL 18V system, so it’s compatible with the rest of the Bosch Home & Garden 18V tool range, useful if a hedge trimmer or blower gets added later. The genuine trade-off is scale: at 32cm cutting width and a compact deck, it’s built for smaller lawns rather than larger sections, where the wider EasyRotak or Kärcher picks below are better suited.
Pros
- Genuine complete kit, mower, battery and charger all included
- Lightweight at 9.9kg, easy to carry and store
- Battery compatible with the wider Bosch 18V Home & Garden tool range
Cons
- 32cm cutting width suits smaller lawns, not larger sections
- Only 3 cutting height settings, less granular than some rivals
Key specs: 32cm cutting width, 30-60mm cutting height (3 settings), 9.9kg, includes 4.0Ah battery and fast charger, Bosch POWER FOR ALL 18V compatible.
2. Gardena PowerMax 32/36V P4A – Best Cross-Brand Battery System
Gardena’s PowerMax is sold as a “skin,” the mower body only, without a battery or charger, and it’s built around Gardena’s high-performance brushless PowerPlus motor for small to medium lawns. A comfortable ErgoTec handle with switches on both sides makes it usable comfortably from either grip position.
Cutting height adjusts through ten steps via Gardena’s QuickFit system, simply press and turn, a more granular range than most rivals on this list offer. What makes it genuinely distinctive is the battery: it runs on the POWER FOR ALL cross-brand system, meaning a single battery works not just across Gardena’s own range but across other participating home and garden brands too, a real advantage for households already mixing tool brands.
Buyers select their own battery separately based on the run time they need, so there’s flexibility in matching capacity to lawn size, but it also means factoring in the extra cost of a compatible battery and charger before the total price is known. Gardena backs it with a 2-year warranty, extendable to 3 years with registration within 3 months of purchase.
Pros
- POWER FOR ALL battery works across multiple participating brands, not just Gardena
- Ten-step QuickFit cutting height adjustment, more granular than most rivals
- 2-year warranty, extendable to 3 years with registration
Cons
- Sold without a battery or charger, an extra purchase for first-time buyers
- Only 1 left in stock at time of writing, availability can fluctuate
Key specs: Brushless PowerPlus motor, 10-step QuickFit cutting height adjustment, POWER FOR ALL cross-brand battery system, 2-year warranty (extendable to 3).
3. Bosch EasyRotak 36-550 – Best for Larger Lawns
For lawns that outgrow the compact CityMower above, Bosch’s EasyRotak 36-550 steps up to the brand’s 36V POWER FOR ALL Cordless System for maximum performance and unrestricted mobility, sold as a bare tool without a battery or charger included.
ErgoFlex handles support a comfortable, healthy working posture, and both the handles and grass box fold and stack for compact storage between mows, a genuinely useful feature for anyone tight on shed or garage space. Grass combs along the cutting deck deliver clean results along edges, driveways, fences and walls rather than leaving strips of uncut grass behind.
Being part of the 36V platform rather than the 18V system used by the CityMower above, its battery and charger are sold separately and aren’t interchangeable with the smaller Bosch kit, worth checking carefully if a buyer already owns Bosch 18V tools expecting cross-compatibility. It suits a household planning to build out a 36V Bosch garden tool collection over time.
Pros
- 36V platform delivers more power for larger lawns than the 18V CityMower
- Foldable handles and stackable grass box for compact storage
- Grass combs give clean edge and border cuts
Cons
- Sold as a bare tool, battery and charger are a separate purchase
- 36V battery is not interchangeable with Bosch’s 18V system
Key specs: Bosch 36V POWER FOR ALL Cordless System, foldable ErgoFlex handles, stackable grass box, grass combs for edge trimming.
4. Kärcher LMO 18-36 – Best Smart Display
Kärcher’s LMO 18-36 runs on the brand’s 18V battery platform and stands out with a real-time LED display built into the handle, giving a running readout while mowing rather than leaving battery status to guesswork. At 36cm cutting width and a 45-litre collection container, it covers more ground per pass and needs emptying less often than the smaller mowers on this list.
It runs at 4000rpm for a clean, precise cut, and a mulch kit is included to return cut grass to the lawn as natural fertiliser instead of bagging every mow. A dedicated carry handle makes it straightforward to lift in and out of a shed or car boot despite the larger deck.
Like the Gardena and EasyRotak picks above, this is sold as a skin, the battery and charger are a separate purchase on Kärcher’s 18V platform. It was also down to the last unit in stock at the time of research, so buyers keen on this specific model should check current availability before committing to it as their pick.
Pros
- Real-time LED display shows battery status while mowing
- Larger 36cm deck and 45L container need less frequent emptying
- Mulch kit included for fertilising the lawn as you mow
Cons
- Sold without a battery or charger, an extra cost on top of the sticker price
- Stock was down to the last unit at time of research
Key specs: Kärcher 18V battery platform, 36cm cutting width, 30-70mm cutting height, 45L container, 4000rpm, mulch kit included.
5. Greenworks 24V Cordless 33cm – Best Budget Established Brand
Greenworks’ 24V Cordless 33cm mower is the cheapest established-brand pick in this guide, sold as a skin that needs a 2Ah or 4Ah 24V battery and charger added separately. A 33cm cutting width and a 30-litre full plastic grass catcher make it a genuine option for a small-to-medium suburban lawn rather than a novelty.
Its compact design with foldable handlebars keeps storage simple, sliding into a corner of the garage rather than demanding dedicated shed space. Because it runs on Greenworks’ 24V battery platform, the same battery works across the brand’s wider 24V tool range, trimmers, blowers and the like, for households planning to add more Greenworks gear over time.
The trade-off is that 24V is a lighter-duty platform than the 36V options above, better suited to light, regular mowing than thick or overgrown grass. Like a couple of the other bare-tool picks here, stock was down to a single unit at the time of research, so it’s worth confirming current availability.
Pros
- Cheapest established-brand mower on this list
- Battery shared across Greenworks’ wider 24V tool range
- Foldable handlebars keep storage compact
Cons
- 24V platform is lighter-duty, better suited to light regular mowing than thick grass
- Sold without a battery or charger, plus stock was down to 1 unit at research time
Key specs: 33cm cutting width, 30L grass catcher, Greenworks 24V battery platform, foldable handlebars.
6. Compact Cordless Lawn Trimmer-Mower – Best for Small Patches and Edges
This compact cordless option isn’t a traditional walk-behind mower, it’s a lightweight, telescopic trimmer-mower hybrid with dual-wheel assist and an LED power display, and it’s the cheapest, most versatile pick on this list. The pole length adjusts from 1 to 30cm and the cutting head tilts a full 90 degrees, letting it reach into corners and under low shrubs that a full-size mower simply can’t access.
It ships with three interchangeable blade types: an alloy saw blade for branches and hard bushes, an alloy blade for thicker, older grass, and a plastic blade for young grass and general lawn trimming, effectively covering trimming, edging and light mowing with one tool. Cordless operation and low noise make it easy to use around a home without tangled cords or disturbing neighbours.
The honest trade-off is scale: this is built for edges, small patches, and awkward corners, not for mowing an entire lawn the way the five walk-behind mowers above are. It’s also an unbranded generic product, so buyers are relying on the Amazon listing and reviews rather than an established manufacturer’s track record.
Pros
- Cheapest mower on this list, battery and charger included
- Three interchangeable blades cover trimming, edging and light mowing
- Reaches corners and awkward spots a walk-behind mower can’t
Cons
- Not a substitute for mowing a full lawn, best for edges and small patches
- Unbranded product, no established manufacturer track record
Key specs: Adjustable pole 1-30cm, 90-degree tilting head, 3 interchangeable blade types, LED power display, battery and charger included.
How to choose a battery lawn mower in NZ
Check whether the battery and charger are actually included. Several mowers in this guide, and in the category generally, are sold as a “skin” or “bare tool,” the mower body only, at a lower price than a complete kit. That’s genuinely good value for buyers who already own a compatible battery, but a first-time buyer needs to add the cost of a battery and charger before comparing total price against a complete kit like the Bosch CityMower.
Voltage indicates power, but check it against the platform, not just the number. Higher voltage (36V vs 18V or 24V) generally means more torque for thicker or longer grass, but batteries aren’t interchangeable across a brand’s own different voltage platforms, so an 18V Bosch battery won’t run the 36V EasyRotak. Cross-brand systems like Gardena’s POWER FOR ALL are the exception, built specifically to share batteries across multiple manufacturers.
Match cutting width and container size to the lawn, not just the price. A 32cm deck with a smaller catcher suits a compact suburban lawn; a 36cm deck with a larger container covers more ground per pass and needs emptying less often, better suited to bigger sections.
Consider whether a full mower is even the right tool. Small courtyards, awkward corners, and mostly-edges properties may be better served by a compact trimmer-mower hybrid than a full walk-behind deck, while larger, open lawns get more value from a wider-cutting dedicated mower.
Verdict
For most first-time buyers, the Bosch CityMower 18V-32-300 is the easiest choice, a genuine complete kit with nothing extra to source before the first mow. Buyers already holding a compatible battery are better served by one of the bare-tool picks, the cross-brand-friendly Gardena PowerMax, the larger-lawn Bosch EasyRotak 36-550, or the smart-display Kärcher LMO 18-36. The Greenworks 24V is the value pick for light, regular mowing, and the compact trimmer-mower hybrid suits small patches and edges rather than a full lawn.
Related guides:
- Want to skip mowing altogether? See our best robot lawn mowers guide.
- Need to tidy up edges after mowing? Check our best line trimmer picks.
- Clearing clippings and leaves afterward? Browse our best leaf blower guide.
Frequently Asked Questions
How long does a battery last on a battery lawn mower?
Run time depends on battery capacity and grass conditions, but typical 4.0Ah batteries on the mowers in this guide run for roughly 30-45 minutes of continuous mowing, enough for an average suburban NZ lawn. Thicker or longer grass draws more power and shortens run time, so an oversized battery is worth considering for bigger sections.
Is higher voltage better for cordless lawn mowers?
Higher voltage (36V vs 18V or 24V) generally delivers more torque, which helps with thicker or longer grass and larger cutting decks. It isn’t automatically ‘better’ for every lawn though, an 18V mower like the Bosch CityMower is genuinely well suited to a smaller, regularly-mowed lawn without needing the extra power of a 36V platform.
What’s better, 20V/24V or 36V/40V?
20V-24V platforms suit smaller lawns and lighter, more frequent mowing, and the tools and batteries are usually cheaper. 36V-40V platforms handle larger lawns and thicker grass better but cost more for both the mower and any additional battery. Match the platform to lawn size rather than assuming higher numbers are always the right choice.
Do I need to buy a battery and charger separately?
It depends on the listing. Several mowers in this guide, including the Gardena PowerMax, Bosch EasyRotak 36-550, Kärcher LMO 18-36 and Greenworks 24V, are sold as a ‘skin’ or ‘bare tool’ without a battery or charger, intended for buyers who already own a compatible battery. Only the Bosch CityMower and the compact trimmer-mower in this guide include everything needed out of the box.
Can I use the same battery across different brands of garden tools?
Usually not, each brand’s battery platform is proprietary and only compatible with that brand’s own tools, and often only within the same voltage line. The main exception is Gardena’s POWER FOR ALL system, which is specifically designed to share batteries across several participating manufacturers.
Are cordless battery mowers as powerful as petrol mowers?
Modern brushless battery mowers handle most suburban NZ lawns comfortably, including moderately thick grass. For very large sections or consistently overgrown grass, a petrol mower or a higher-voltage battery platform with a spare battery on hand will generally outlast a single charge on a smaller battery mower.