Greenworks G40LT Review

What it’s good at

The G40LT is built for the job most people actually have: keeping lawn edges and open grass tidy without wrestling a heavy machine or dealing with two-stroke fuel. Being cordless on the 40V platform, it starts instantly at the press of a trigger and stays quiet. The adjustable front handle lets taller or shorter users find a comfortable working angle, and the shaft splits in two for storage.

The Amazon.co.uk listing confirms a 30 cm cut, 1.65 mm line that feeds automatically each time you start the trimmer, and a head you twist off and push new line straight through — no fiddly threading. Variable speed lets you slow down around delicate plants, and a built-in plant guard can be held against a tree trunk to protect the bark while you cut. It’s sold without battery or charger and carries a three-year Greenworks guarantee.

Weight is the other strong point. Battery trimmers in this class are consistently easier to swing for long periods than petrol equivalents, and the G40LT is no exception - it’s the kind of tool you can use around borders, along fences and under shrubs without your arms giving out first. If you already own other Greenworks 40V G40 tools, the ability to share one battery and charger across a hedge trimmer, blower or similar is a real practical saving, both in cost and in things to store and maintain.

Where it falls short

The trade-offs are the usual ones for a line-only cordless trimmer at this level. There’s no option to fit a metal blade, so anything beyond grass and light weeds - brambles, dense scrub, tough perennial stalks - is off the table; pushing it into that kind of growth just stalls the line and wastes battery charge. Cutting width and runtime are also modest compared with petrol brushcutters, so larger plots or genuinely overgrown areas will mean stopping to recharge or accepting a slower pace. The UK listing is tool-only, with the battery and charger sold separately, so factor that into the real cost before buying.

Who should buy it

This is a sensible pick for anyone with a medium-sized garden who wants a light, low-maintenance trimmer for lawn edges and general grass upkeep, rather than a do-everything brushcutter. It particularly suits users who value quiet, instant-start operation over raw power, or who are already invested in the Greenworks 40V G40 ecosystem and want to add a trimmer without buying another battery. Anyone regularly facing brambles, saplings or rough overgrown ground should look at a blade-capable machine instead — Greenworks’ own GD40BC runs on the same batteries.