Our verdict
A neat continental-style cordless that suits small UK lawns. Lacks mulch and roller so functionality is basic. Gardena hold value better than Worx, less than EGO.
Pros & cons
Pros
- PowerForAll Alliance battery
- Gardena ergonomic handle
- Reasonable runtime
- Quiet motor
Cons
- No mulch
- No roller
- Battery sold separately on some configs
Full specs
| Type | Cordless |
|---|---|
| Cut width | 37 cm |
| Engine / Power | Gardena P4A 40V |
| Weight | 14 kg |
| Deck | Plastic |
| Self-propelled | No |
| Rear roller | No |
| Mulching | No |
| Cutting heights | 6 positions |
| Bag capacity | 40 L |
| Suited to lawn | Small |
| Noise level | 75 dB |
Buying second-hand
£100–180 used. Confirm PowerForAll 40V battery is included. The handle latches can break — check they lock cleanly. No mulch plug is a real limitation; budget for bagging every cut.
Where to buy the Gardena PowerMax Li-40
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Repair-cost reference
UK 2026 ballpark prices for the parts you're most likely to need on this mower. OEM is dealer-genuine; aftermarket is what you'll find on eBay or generic small-engine suppliers. Use these to sense-check any quote and to negotiate on used buys.
| Part / job | OEM | Aftermarket |
|---|---|---|
|
Replacement 37cm blade
Annual sharpening is free; replace when bent or cracked.
|
£24–£32 | £8–£12 |
|
Replacement battery
Wear part — typical 3–5 years to 80% capacity. The biggest single repair cost on any battery mower.
|
£90–£180 | £55–£120 |
Fair-offer calculator
Tell us about a specific used listing for the Gardena PowerMax Li-40 you're looking at. We'll compute a fair offer range from our used-market data and the condition signals you provide.
Calculations are guidance, not gospel. Used-market prices vary by region (Scotland is typically 10–15% cheaper than the South-East), season (October cheapest, March most expensive), and seller motivation.
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