Battery Platforms
Kobalt 80V vs Toro 60V Max
One carries twice the energy and is rated for an acre. The other tells you what its battery actually holds. Only one of those is a spec.
Affiliate disclosure: we earn a commission if you buy through our links, at no extra cost to you. It never changes which product we rank first — here is how we're funded.
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 September 27, 2026. Here is exactly how we pick.
This is the comparison between a mower built to finish a big lawn and a mower built to be understood. Kobalt brings two bays, 640 nameplate watt-hours and the only acre rating on a walk-behind in our registry. Toro brings a published battery capacity, a published weight and a way to store it upright.
The short answer
The two spec sheets, side by side
| Spec | Kobalt 80V self-propelled | Toro 21356 | Who published more |
|---|---|---|---|
| Deck | 21 in, steel (no gauge) | 21 in, 14-gauge steel | Toro |
| Batteries in the box | 2 x 80V 4.0Ah, dual port | 1 x 60V Max 6.0Ah | Tie |
| Watt-hours | 640Wh nameplate (our arithmetic) | 324Wh (Toro's own figure) | Toro |
| Runtime claim | Up to 80 min | Up to 45 min | Tie |
| Acreage rating | Up to 1 acre | Not published | Kobalt |
| Recharge | Approx. 60-90 min | 150 min | Kobalt |
| Weight | Not published | 66 lb | Toro |
| Drive | Self-propelled RWD, 7 speeds | Personal Pace variable RWD | Kobalt (gives a count) |
| Storage | Not published | SmartStow vertical | Toro |
| Cut height | Not published | Not published on the page we cite | Neither |
Transcribed from the Lowe's listing and Toro's product page, cited below. Blank cells are blank on the source.
The energy gap, and the honest size of it
Two bays is still two bays. Whatever the nominal capacity turns out to be, Kobalt is carrying roughly twice as much of it as Toro, and that is the reason it is the only walk-behind in our registry its maker rates for a full acre.
The recharge gap decides your Saturday
Kobalt publishes 60 to 90 minutes; Toro publishes 150. On a lawn either machine finishes in one go, that difference is invisible. On a lawn that needs a second pass it is the whole afternoon.
More on how recharge times compare across every platform is in cordless charging times.
Who should buy the Kobalt
A half acre and up. The 640Wh across two bays and the published acre rating are the reason this machine appears in our acre-sized yard kit, and seven drive speeds is a genuine feature on ground that changes underfoot.
Buy it knowing Kobalt publishes less than anyone here: no weight, no cut height, no deck gauge, and no statement of how the two ports behave.
#ad Check the Kobalt 80V Max 21" Self-Propelled (dual-port) price on Amazon — how we're funded.
Who should buy the Toro
A quarter acre, a small garage, and a preference for knowing things. Toro is the only maker on this site that prints the actual watt-hour capacity of its pack, and SmartStow vertical storage solves a problem most spec sheets pretend does not exist.
#ad Check the Toro 60V Max 21" Recycler Self-Propel (21356) price on Amazon — how we're funded.
The decision in one line
- Measure the grass. Under half an acre, the Kobalt's energy is headroom you will not use.
- Measure the garage. If the mower has to stand up, only one of these does.
- Over half an acre, the acre rating and the 60 minute recharge settle it for Kobalt.
Kobalt against the other 80V platform is in Greenworks vs Kobalt, and Toro against the widest platform here is in EGO vs Toro.
What we cannot tell you
We have not mowed with either machine. Kobalt's listing publishes no weight, no cut height range, no deck gauge and no explanation of its dual-port behavior, so the comparison above is one-sided on disclosure. Toro publishes no acreage rating, which is the figure a buyer with a big lawn most needs. Neither publishes a decibel figure, and neither states the grass conditions behind its runtime claim.
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.
Kobalt 80V Max 21" Self-Propelled (dual-port)
Kobalt · Kobalt 80V Max · 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.
Two 4Ah bays, 80 published minutes and an acre rating -- the most runtime per purchase of any 80V walk-behind here.
Published specs
| Deck | 21 in, steel |
|---|---|
| Motor | Brushless |
| Batteries included | 2 x 80V 4.0Ah (dual port) |
| Runtime claim | Up to 80 min |
| Rated for | Up to 1 acre |
| Drive | Self-propelled RWD, 7 speed settings |
| Recharge | Approx. 60-90 min |
Source: Kobalt 80-Volt 21-in Self-propelled Battery Mower (2 batteries), lowes.com
80V x 4.0Ah = 320Wh per pack; two bays = 640Wh installed. Kobalt's listing does not state whether the two ports discharge simultaneously or in sequence, so we do not claim either -- what is verifiable is that 640Wh is on the machine when you start.
What the numbers favor
- 640Wh installed across two bays, the most of any walk-behind on this page
- Rated to 1 acre, twice the Greenworks 80V flagship's half-acre rating
- Seven published speed settings on the self-propel drive
- All Kobalt 80V packs are cross-compatible across the 80V outdoor line
What they don't
- Sold through Lowe's only, so availability and price track one retailer
- The listing does not publish weight, cut-height range or a noise figure
- Kobalt's 80V outdoor range is narrower than EGO's or Ryobi's
you want a platform rather than a mower. Kobalt is a single-retailer house brand -- fine for the tool, thinner as a decade-long ecosystem bet.
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.
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.
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 two-bay runtime
Kobalt 80V Max 21" Self-Propelled (dual-port)
Kobalt · Kobalt 80V Max
Best published watt-hour honesty
Toro 60V Max 21" Recycler Self-Propel (21356)
Toro · Toro 60V Max Flex-Force
#ad As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. How we're funded.
Common questions
Is Kobalt 80V better than Toro 60V?
How long does each take to recharge?
Does the Kobalt use both batteries at once?
Which has the better deck?
Which stores in a smaller space?
Are Kobalt 80V and Toro 60V batteries compatible?
Sources
Read next
- Battery Platforms
Pick the system once and the next four tools are decided for you. Start here.
- EGO 56V vs Kobalt 80V Max: more energy now, or more platform later
640Wh installed against 420Wh, and a one-retailer platform against a nine-tool one.
- Greenworks 80V vs Kobalt 80V: same voltage, different bets
Same 80V sticker, double the installed energy on one of them. The comparison is about packs, not volts.
- 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.
- 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.
- A cordless yard tool kit for an acre
The mower decision at an acre, plus the trimmer and blower to go with it, sized in watt-hours.