This Greenworks 80V 21-inch self-propelled kit is a sensible shortlist option for buyers who want powered travel in a conventional deck size. It includes one 4Ah battery and a charger. This review covers the self-propelled Amazon configuration, not the older GLM801601 push mower or an 8Ah bundle.

Configuration covered in this review
80V system; 21-inch steel deck; brushless motor; variable-speed rear-wheel drive; one 4Ah battery and charger; LED headlights.
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Who this mower suits
A 21-inch format is a useful starting point when a compact mower would mean too many passes but a 25-inch machine would be awkward around gates and beds. Powered travel can reduce sustained pushing effort. It does not remove the need to control turns, keep stable footing or follow the mower’s slope limits.
The tradeoffs to consider
The product listing advertises coverage up to half an acre with the 4Ah pack, explicitly depending on grass and technique. We would not buy it on that number alone. If your grass area approaches the advertised maximum, consider the cost of a compatible spare battery or a charging break before comparing its total price with other kits.

Battery, setup and ownership details
Existing Greenworks 80V ownership strengthens the case because compatible packs may serve more than one tool. Greenworks 60V and 40V are different systems. Check exact compatibility rather than assuming the brand name is enough. An 8Ah kit also should not be used as evidence of runtime for this 4Ah offer.
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Alternatives worth comparing
Before deciding, read our Greenworks 80V 25-inch self-propelled review and EGO LM2156SP review. Compare the differences in size, drive and package contents instead of choosing by brand or voltage alone.
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Frequently asked questions
Is this the same as the Greenworks 80V push mower?
No. This offer has variable-speed rear-wheel drive. The older GLM801601 review covers a push configuration. Check the exact kit before ordering.
How should I compare the total cost?
Check the exact equipment supplied, delivery charge and seller terms. Budget for the compatible batteries and charger you need, or an appropriate cord for a corded model. Our mower parts, battery and charger guide explains what to match.
What if I have around half an acre?
Start with the actual grass area, then allow for obstacles, grass conditions and charging breaks. A compact format can add substantial mowing time. Use our half-acre mower comparison to weigh the alternatives.
Our assessment
This Greenworks 80V 21-inch self-propelled kit is a sensible shortlist option for buyers who want powered travel in a conventional deck size. It includes one 4Ah battery and a charger. The right choice is the one whose handling, setup and ongoing costs fit your lawn. Check the current offer before purchasing; stock and package contents can change.
Check Greenworks 80V 21-inch self-propelled price on Amazon →
Research method and sources
This is a research-based review. We assessed the listed configuration and buying tradeoffs; we have not personally tested this mower. Performance and coverage figures attributed to the manufacturer or listing are not our test results. Product information and images were checked against the linked Amazon listing.