Our verdict
A tidy mid-size cordless aimed at people who do not want cables. The big 50L box means fewer trips to the compost heap, and the 48V battery has enough grunt for an average lawn. Runtime is the main limit, so it suits gardens up to around 400m2 rather than large plots.
Pros & cons
Pros
- Large 50L grass box for the class
- Removable battery, simple to charge
- Folds flat for storage
- 2 year warranty
Cons
- Runtime around 40 minutes only
- Heavier than rivals at 13.5kg
- No mulching plug included
Full specs
| Type | Cordless |
|---|---|
| Cut width | 42 cm |
| Engine / Power | Cordless 48V |
| Weight | 13.5 kg |
| Deck | Plastic |
| Self-propelled | No |
| Rear roller | No |
| Mulching | No |
| Cutting heights | 6 positions |
| Bag capacity | 50 L |
| Suited to lawn | Medium |
| Noise level | 75 dB |
Buying second-hand
Check the battery holds charge before buying used, as the single pack is the expensive part to replace. A fair used price is around £200 to £220 with a healthy battery.
Where to buy the Gtech CLM50
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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 42cm 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 Gtech CLM50 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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