Battery Platforms
Toro 60V vs Greenworks 80V: same energy, opposite answers
324Wh against 320Wh is the closest match in our registry. What each brand does with that energy could not be more different.
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We have not tested these units. Every spec on this page comes from the manufacturer's own documentation and is linked to it. Every computed figure is arithmetic you can redo. Prices are checked daily — last verified January 1, 1970. Here is exactly how we pick.
Of the six mowers we hold specs for, these two are the closest on paper and the furthest apart in philosophy. Four watt-hours separate their packs. Twelve minutes separate their runtime claims, 110 minutes separate their recharge times, and one publishes about twice as many specifications as the other.
The short answer
The closest energy match in the category
It is worth pausing on how unusual this pairing is. Toro publishes a real watt-hour figure; every other brand leaves you to multiply. That the multiplied Greenworks number lands within 1.3% of Toro's published one is a coincidence, but a useful one, because it removes capacity from the argument entirely.
#ad Check the Toro 60V Max 21" Recycler Self-Propel (21356) price on Amazon — how we're funded.
The gap that is not close at all
Runtime gets the headline. Recharge decides whether a half-acre lot is one afternoon or two, and here the two brands are not in the same category.
Read the bottom block again. If your lawn needs more than one pack's worth of work and you only own one pack, the Greenworks lets you finish before lunch and the Toro does not. We work through every published charger rate in how long batteries take to charge.
Side by side, including the blanks
| Spec | Toro 21356 | Greenworks LM2108S |
|---|---|---|
| Energy | 324Wh (published) | 320Wh (nameplate, computed) |
| Runtime claim | Up to 45 min | Up to 33 min |
| Watt-hours per minute | 7.2 | 9.7 |
| Recharge | 150 min | 40 min |
| Deck | 21 in, 14-gauge steel | 21 in, 4-in-1 |
| Blade speed | Not published | 3200 RPM |
| Weight | 66 lb | 75 lb |
| Acreage rating | Not published | Up to 1/2 acre |
| Cut height | Not published | 1.38-4.0 in, 7 positions |
| Storage | SmartStow vertical | Not published |
| Warranty | Not stated on this page | 4-yr tool / 4-yr battery |
From the Toro 21356T and Greenworks LM2108S product pages, checked 3 September 2026. Per-minute figures are our arithmetic.
Greenworks fills eleven of eleven rows minus one; Toro leaves four blank, including the cut-height range. On a cool-season lawn that blank matters, because the top of the range decides whether you can mow at the three inches or higher extension services recommend.
#ad Check the Greenworks 80V 21" 4-in-1 LM2108S price on Amazon — how we're funded.
Beyond the mower
Neither of these is a strong platform bet, for opposite reasons. Toro's 60V Flex-Force line is one coherent family but a narrow one — the mower is the only Toro tool we hold specs for. Greenworks has the wider outdoor range, but it runs 24V, 40V, 60V and 80V as four separate non-interchangeable platforms, so the range is not available to any single buyer.
| Tool we hold specs for | Brand | Voltage line |
|---|---|---|
| LM2108S mower | Greenworks | 80V |
| LM2054 mower | Greenworks | 40V |
| ST80L210 trimmer | Greenworks | 80V |
| 730 CFM blower | Greenworks | 80V |
| 3000 PSI pressure washer | Greenworks | 60V |
| 21356 mower | Toro | 60V Max Flex-Force |
Three Greenworks voltage lines across five tools. A buyer committed to Greenworks 80V can use three of them; the other two need different packs and a different charger.
If a coherent decade-long ecosystem is the goal, neither of these is the answer and the honest recommendation is elsewhere — see EGO vs Toro and the Greenworks platform guide.
What we cannot tell you
We have pushed neither mower. Whether Toro's 45-minute claim survives real grass better than Greenworks' 33-minute one, how a 14-gauge steel deck ages against a composite one, and whether the SmartStow hinge stays tight are all outside what a spec sheet answers.
What is settled: four watt-hours apart, 35% apart on published draw, 3.7x apart on charging, 9 lb apart on weight, and four specification rows apart on transparency.
The products discussed
Specs are the manufacturer's own and linked to the page they came from. Prices come from a live daily check; where we have no verified price we say so rather than print a stale one.
Toro 60V Max 21" Recycler Self-Propel (21356)
Toro · Toro 60V Max Flex-Force · Our score 8.3/10
#ad No verified live price right now, so we show none rather than a stale one. How we're funded.
The only manufacturer here that publishes the actual watt-hour figure for its pack -- and the number tells you something the others hide.
Published specs
| Model | 21356 |
|---|---|
| Deck | 21 in, 14-gauge steel |
| Battery | 60V Max L324, 6.0Ah, 324Wh |
| Charge time | 150 min |
| Runtime claim | Up to 45 min on the 6.0Ah |
| Drive | Personal Pace variable-speed RWD |
| Weight | 66 lb |
| Storage | SmartStow vertical |
Source: 60V Max 21 in. Recycler Self-Propel Lawn Mower (21356T), toro.com
Toro labels the pack 60V Max 6.0Ah and publishes 324Wh. 324 / 6.0 = 54V -- the nominal voltage, not the 60V max-charge figure on the sticker. Every brand's 'max volts' is roughly 11% above nominal, so a nameplate watt-hour number is always about 11% optimistic. This is the single most useful spec on this page.
What the numbers favor
- Publishes a real watt-hour figure (324Wh) instead of leaving you to multiply the marketing voltage
- 45 minutes from 324Wh, against Greenworks' 33 minutes from a nameplate 320Wh
- 14-gauge steel deck, the only steel deck spec published on this page
- SmartStow vertical storage -- a genuine constraint solver in a one-car garage
What they don't
- 150-minute recharge is the slowest here by a wide margin
- Toro's 60V line is narrower than EGO's or Ryobi's, so the platform grows less far
you are buying into a platform rather than a mower. Toro builds excellent mowers; the 60V Flex-Force tool range is not the one to bet a decade of yard tools on.
How it scores
Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.
Greenworks 80V 21" 4-in-1 LM2108S
Greenworks · Greenworks 80V · Our score 8.4/10
#ad No verified live price right now, so we show none rather than a stale one. How we're funded.
The only mower here that publishes motor wattage, blade RPM, weight and an acreage rating -- and the only one whose battery warranty matches its tool warranty.
Published specs
| Model / SKU | LM2108S / 2550402 |
|---|---|
| Deck | 21 in |
| Max blade speed | 3200 RPM |
| Battery included | 80V 4.0Ah |
| Cut height | 1.38-4.0 in, 7 positions |
| Runtime claim | Up to 33 min |
| Weight | 75 lb |
| Rated for | Up to 1/2 acre |
| Warranty | 4-yr tool / 4-yr battery |
Source: 80V 21" 4-in-1 Self-Propelled Lawn Mower (LM2108S), greenworkstools.com
80V x 4.0Ah = 320Wh, using Greenworks' advertised pack voltage.
What the numbers favor
- 4-year battery warranty -- a year longer than EGO's 3-year, on the component that fails first
- Publishes blade RPM, weight and acreage rating; the other two brands publish none of the three
- 40-minute recharge on the included charger, the fastest published here
- 4-in-1 deck adds turbo leaf pickup on top of mulch, bag and side discharge
What they don't
- 320Wh included, the least of the three flagships -- and the 33-minute runtime claim reflects that
- 75 lb is the only published weight here, and it is not light
you want one battery to finish a half-acre without a swap. Greenworks rates the mower for 1/2 acre but claims only 33 minutes on the included pack; those two numbers only reconcile if you buy a second battery.
How it scores
Scores are our editorial weighting of the published specs above, not a test result. They are deliberately kept out of this page's structured data.
Where to buy the tools on this page
Every link below is an Amazon affiliate link. We show no price we have not verified today, so where there is no live figure the link says "check price" and takes you to the listing to read it there.
Best published watt-hour honesty
Toro 60V Max 21" Recycler Self-Propel (21356)
Toro · Toro 60V Max Flex-Force
Best published spec sheet
Greenworks 80V 21" 4-in-1 LM2108S
Greenworks · Greenworks 80V
#ad As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. How we're funded.
Common questions
Is Toro 60V or Greenworks 80V better?
Why does Toro get more runtime from the same energy?
Which recharges faster?
Is Toro's 60V really 60V?
Which mower is heavier?
Which platform grows further?
Sources
- Toro 60V Max 21 in. Recycler Self-Propel Lawn Mower (21356T), toro.com
- Greenworks 80V 21" 4-in-1 Self-Propelled Lawn Mower (LM2108S), greenworkstools.com
- Greenworks 80V 730 CFM Cordless Battery Leaf Blower, greenworkstools.com
- Greenworks 80V Cordless 16" Brushless String Trimmer (ST80L210), greenworkstools.com
Read next
- Battery Platforms
Pick the system once and the next four tools are decided for you. Start here.
- EGO 56V vs Toro 60V Max: the honest watt-hour comparison
420Wh nameplate against 324Wh published, and what Toro's own number says about everyone else's.
- EGO 56V vs Greenworks 80V: higher voltage, smaller pack
80V beats 56V on paper. The included pack sizes reverse the result, and here is the math.
- Watt-hours explained: the one number that compares any two battery tools
Volts x amp-hours = watt-hours. Every pack in the registry converted, and why max volts overstates it.
- How long do yard tool batteries take to charge?
Every published charge time converted to watt-hours per minute, and the mow-wait-mow arithmetic.
- EGO vs Ryobi vs Greenworks vs Toro: the mowers compared
Every published spec from four flagship 21-inch mowers, converted so it is comparable.