A few years ago, this comparison would have been fairly simple: petrol mowers were more powerful, battery mowers were for small flat lawns only, and the choice depended mainly on garden size. That gap has narrowed considerably. Good quality battery mowers now handle most residential gardens in Sandwich, Deal and the surrounding villages without difficulty, and for many people they are the easier option.
What follows is a plain comparison of both types, covering what each does well, where each falls short, and which makes more sense for different garden situations.
Before you buy: things to check first
- Measure your lawn area in square metres before looking at any mower. Manufacturer runtime claims assume ideal conditions; real-world range on slightly long, damp or thick grass is often lower.
- Check the battery platform before buying into a cordless range. Some brands share batteries across tools (mower, strimmer, hedgetrimmer), which adds value if you have or plan to buy other tools in the same range.
- Consider where you store the mower. A petrol mower stored with fuel needs ventilation. Battery packs should be removed once fully charged rather than left connected indefinitely.
Petrol lawn mowers
A petrol mower has one clear advantage: it does not run out of charge. Fill the tank, start it and mow for as long as you need. For larger gardens, paddock edges, or any situation where you mow infrequently and the grass gets long between cuts, a petrol mower's sustained power still leads.
Where petrol works well
- Larger lawns over 300 to 400 square metres where battery runtime becomes a limiting factor
- Long or thick grass that has not been mowed for several weeks
- Slopes, where a self-propelled petrol mower maintains better control and traction on heavier ground
- Infrequent mowing where the grass grows tall before each cut
- Extended sessions of several hours without needing to stop and recharge
Where petrol falls short
- Needs fuel and regular maintenance: oil changes, spark plugs, air filter, carburettor cleaning over the season
- Engine noise is significant; you cannot mow early on a quiet morning in a terraced Sandwich street without disturbing neighbours
- Storing petrol in a garage or shed is a fire and vapour risk
- Starting reliably in cold or damp conditions is not always guaranteed, particularly with older carburettors
Battery lawn mowers
Modern battery mowers, particularly 36V and 40V brushless models from established brands, cut dry or lightly damp lawn grass to the same standard as most petrol machines. They start instantly, are considerably quieter, and need almost no maintenance beyond keeping the blade sharp and the deck clean. For weekly mowing of a typical East Kent front-and-back garden, they are now the more practical everyday tool.
Where battery works well
- Lawns up to about 300 square metres mowed regularly so the grass is never very long
- Quiet mowing, particularly useful in terraced gardens in Sandwich or Deal where noise carries between houses
- Low maintenance: no fuel, no oil, no carburettor problems, no winter storage drain-down
- Instant, reliable start in all weathers
- Battery platforms shared with strimmers and hedge trimmers reduce overall tool costs if you buy within one range
Where battery falls short
- Runtime is fixed by the battery; for larger gardens you need a second battery or a mid-session recharge wait
- Thick, long grass drains the battery faster than the manufacturer's quoted runtime suggests
- Battery packs degrade over time and will eventually need replacing, typically after five to ten years of regular use
- High-end battery mowers with large battery packs can cost more upfront than equivalent petrol models
Which should you choose?
For most gardens in Sandwich, Deal, Worth, Ash and the surrounding villages, which tend to be under 200 square metres, a modern battery mower is the better everyday choice. It is quieter, simpler to maintain, and capable enough for the job. The scenarios where petrol still makes clear sense for a domestic garden are:
- The lawn is large, over 300 to 400 square metres
- The garden has significant slopes that make a heavy battery mower awkward
- You mow infrequently, leaving the grass to grow long between cuts
- You need to mow for two or more hours in a single session without stopping
For everything else, a good battery mower is the more convenient option and will do the job just as well.
Video reference: Battery V Petrol. The Lawnmower Test by the Fully Charged channel (over 1 million subscribers, UK-based), which first compared these two types when battery technology was considerably less capable. The performance gap documented in that early test has since narrowed substantially in battery's favour.
Prefer we do the mowing?
Whether you have a petrol, battery or corded mower at home, sometimes the easiest answer is to hand the job over. We cover Sandwich, Deal, Worth, Ash, Woodnesborough, Eastry and Sandwich Bay. Most front-and-back lawns are £20. Get in touch and we will pop round.