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MOW & MEADOW

Battery Platforms

The EGO 56V platform, tool by tool

One battery family that reaches from a 140Wh trimmer to a 2,240Wh zero turn. Here is everything on it we hold published specs for.

By Sawyer V.Published Last updated

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Cordless tool battery packs on a bench

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.

EGO 56V is the platform this site keeps recommending, and it is worth setting out in one place why. Ten tools in our registry run on one pack family, and the range spans a factor of sixteen in energy without ever changing battery.

The case, in one number

The same 56V ARC Lithium pack runs a 4.6 lb handheld blower and a 42 inch zero turn riding mower. No other platform in our registry reaches that far on one battery. It is why a pack bought for your first EGO tool is never stranded.

Every EGO tool we hold specs for

ToolClassHeadline published specKit or bare
LM2135SP21 in self-propelled mower420Wh in the box, 60 min, 1-4 in cut, 7.0 ft-lbs torqueKit
LB6504650 CFM handheld blower225-470 CFM variable, 180 MPH, 64 dB, IPX4Kit
LB7650765 CFM handheld blower200 MPH, 15 min turbo / 150 min low, 4.6 lb bareBare
LB6000600 CFM backpack blower180 / 33 / 23 min on low, high, turbo; 12.5 lbBare
ST1521S15 in string trimmer0.095 in line, POWERLOAD, split carbon shaft, lifetime shaft warrantyKit
EA08008 in edgerUp to 3 in depth, 50 / 100 / 132 min by pack size, IPX4Attachment
PSA100010 in pole sawUp to 70 cuts on 2.5Ah, 38 in pole, 4.17 lbAttachment
HT241024 in hedge trimmer1 in cut capacity, 3,000 SPM, 6.17 lb bareBare
CS180418 in chainsawUp to 300 cuts on a 4x4, 3/8 in pitch 0.050 in gaugeKit
ZT4204L Z642 in zero turn2,240Wh installed, up to 2 acres, 6 bays, 8 MPHKit

Every figure transcribed from EGO's own product pages, checked 3 September 2026. This is the EGO range we hold cited specs for, not EGO's full catalog.

The packs, converted

EGO does not publish watt-hours, so every figure below is advertised volts times amp-hours — the same convention we use for every brand, and about 10% optimistic for all of them.

The arithmetic — EGO 56V pack sizes as watt-hours
2.5Ah: 56 x 2.5 = 140Wh
4.0Ah: 56 x 4.0 = 224Wh
5.0Ah: 56 x 5.0 = 280Wh
7.5Ah: 56 x 7.5 = 420Wh
10.0Ah: 56 x 10.0 = 560Wh
Z6 with four 10.0Ah packs: 2,240Wh installed
Z6 with all six bays filled: 3,360Wh
140Wh to 3,360Wh is a factor of 24 on one battery mount

The practical consequence is that pack size becomes a per-job decision rather than a per-tool one. A 2.5Ah on the trimmer, a 7.5Ah on the mower and four 10.0Ah in the rider are all the same battery in different capacities. The sizing method is in watt-hours explained.

#ad Check the EGO Power+ 21" Select Cut LM2135SP price on Amazonhow we're funded.

How hungry each tool is

ToolPublished drawWhat that means for pack choice
LB7650 blower on turboAbout 18.7Wh/minA 5.0Ah pack is 15 minutes. Use turbo in bursts.
LB7650 blower on lowAbout 1.9Wh/minA 5.0Ah pack is 150 minutes. This is the working mode.
LM2135SP mowerAbout 7.0Wh/minA 7.5Ah pack is 60 minutes, which is the kit.
ST1521S trimmerAbout 4.7Wh/minThe 2.5Ah kit pack is 30 minutes. Fit a bigger one.
EA0800 edgerAbout 4.2Wh/min, flat across pack sizesTime scales with capacity. 7.5Ah is 100 minutes.
CS1804 chainsawAbout 0.93Wh per 4x4 cutSize by cuts, not minutes. 300 cuts is 280Wh.
PSA1000 pole sawAbout 2.0Wh per cut70 cuts on a 2.5Ah. Roughly 2.2x the saw per cut.

All per-minute and per-cut figures are our arithmetic on EGO's published runtimes and pack sizes.

The edger row is the one to notice. EGO publishes runtimes for the EA0800 at four pack sizes, which is enough data to show the draw is essentially flat — and almost nobody in this category publishes that much.

#ad Check the EGO Power+ 650 CFM Blower LB6504 price on Amazonhow we're funded.

The multi-head layer

Two of the ten tools above are not tools in the usual sense. The EA0800 edger and PSA1000 pole saw are attachments: no motor, no battery mount, no function without an EGO PH1400 or PH1420 power head. The ST1521S trimmer has a split carbon fiber shaft and doubles as that power head.

Get this right and it is the cheapest expansion route in cordless yard work; get it wrong and you have bought a shaft with a blade on the end and nothing to spin it. The economics are worked through in multi-head attachment systems.

#ad Check the EGO Power+ 15" POWERLOAD Carbon Fiber ST1521S price on Amazonhow we're funded.

Warranty, which is where EGO is unusually explicit

ProductToolBatteryExtra
LM2135SP mower5 years3 years-
LB6504 blower5 years3 years-
ST1521S trimmer5 years3 yearsLifetime on the carbon fiber shaft
ZT4204L Z65 years5 yearsCharger also covered for 5 years

From EGO's own product pages, checked 3 September 2026. Read the battery column: it is the component that ends a cordless tool's life.

A five-year tool term next to a three-year battery term is the manufacturer telling you which part it expects to fail. Greenworks warrants its 80V battery for four years, which is the one place a competitor beats EGO outright on paper.

#ad Check the EGO Power+ 18" Chain Saw CS1804 price on Amazonhow we're funded.

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Where the platform is weak

  • Spec transparency. EGO publishes no weight for the LM2135SP, no runtime at all for the HT2410 hedge trimmer, and no acreage rating for anything.
  • Torque instead of watts. EGO publishes 7.0 ft-lbs of cutting torque where Greenworks publishes motor wattage. Those do not convert.
  • Kit packs sized for the claim. The ST1521S ships a 140Wh pack for a tool that draws 4.7Wh a minute. Thirty minutes is not a long session.
  • Bare-tool defaults. Several of the best tools on the platform ship without a battery, which is fine on your fourth purchase and a surprise on your first.

What we cannot tell you

We own none of this equipment and have tested none of it. Pack longevity past the warranty term, real capacity retention, cold-weather behavior and how the multi-head coupling wears are all outside what EGO publishes and outside what we would guess at.

What the published figures support is narrower and still decisive: ten tools, one pack family, five pack sizes spanning 140Wh to 560Wh, and a rider that takes the same batteries as the blower.

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.

1. Best overall

EGO Power+ 21" Select Cut LM2135SP

EGO · EGO 56V ARC Lithium · Our score 9.1/10

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The most watt-hours in the box of any flagship walk-behind here, on the platform with the widest tool range to grow into.

Published specs

Deck21 in
Cutting torqueUp to 7.0 ft-lbs
Battery included56V 7.5Ah
Cut height1-4 in, 8 positions
Self-propel speed0.9-3.1 MPH
Runtime claimUp to 60 min
Warranty5-yr tool / 3-yr battery

Source: EGO POWER+ 21" Select Cut System (LM2135SP), egopowerplus.com

Our arithmetic — Nameplate watt-hours
420Wh

56V x 7.5Ah = 420Wh, using EGO's advertised pack voltage.

What the numbers favor

  • 420Wh in the box -- the largest included pack of any flagship walk-behind on this page
  • Eight cut-height positions from 1 to 4 in, the widest published range here
  • Three interchangeable lower blades (mulching, high-lift bagging, extended runtime)
  • 5-year tool warranty, the longest published on this page

What they don't

  • EGO publishes torque (7.0 ft-lbs), not motor wattage, so it cannot be compared directly against Greenworks' 1500W figure
  • The 7.5Ah pack that earns the runtime claim is also the expensive one to replace
Skip this one if

your yard is under a quarter acre. You would be paying for 420Wh of headroom you will never discharge, and a 20 in push mower cuts the same grass.

How it scores

Included energy9.5
Cut adjustability9.0
Platform range9.5
Warranty9.5
Value per watt-hour7.5

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.

2. Best overall

EGO Power+ 650 CFM Blower LB6504

EGO · EGO 56V ARC Lithium · Our score 9.0/10

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650 CFM in turbo with a genuine variable dial down to 225 CFM, and 64 dB published -- the useful range is the whole point.

Published specs

Max air volume650 CFM (turbo)
Variable range225-470 CFM
Max air speedUp to 180 MPH
Battery (kit)56V 5.0Ah
Runtime claimUp to 90 min average
Noise64 dB
Warranty5-yr tool / 3-yr battery

Source: POWER+ 650 CFM Blower, egopowerplus.com

Our arithmetic — Nameplate watt-hours
280Wh

56V x 5.0Ah = 280Wh, using EGO's advertised pack voltage.

What the numbers favor

  • A real variable dial (225-470 CFM) plus turbo, not a three-position switch
  • 64 dB published -- quieter than the 730 CFM Greenworks, which does not publish a figure at all
  • IPX4 weather-resistant rating, published
  • 5-year tool warranty

What they don't

  • The 650 CFM headline is turbo-only; sustained work happens at 470 CFM or below
  • EGO does not publish a weight for this model
Skip this one if

your yard is a small courtyard or a deck. 650 CFM will move your mulch, your gravel and your neighbor's patience.

How it scores

Peak airflow9.0
Usable range9.5
Published noise8.5
Warranty9.5
Spec transparency8.0

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.

3. Best overall

EGO Power+ 15" POWERLOAD Carbon Fiber ST1521S

EGO · EGO 56V ARC Lithium · Our score 8.9/10

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A lifetime shaft warranty and a head that reloads line at the push of a button -- the two things that actually go wrong with a string trimmer.

Published specs

Cutting swath15 in
Line0.095 in dual-feed spiral twist
HeadPOWERLOAD automatic winding
ShaftCarbon fiber, split shaft
Battery (kit)56V 2.5Ah
Runtime claimUp to 30 min on 2.5Ah
Charge time50 min
Warranty5-yr tool / 3-yr battery, lifetime shaft

Source: POWER+ 15" POWERLOAD String Trimmer with Carbon Fiber Shaft, egopowerplus.com

Our arithmetic — Nameplate watt-hours
140Wh

56V x 2.5Ah = 140Wh. 30 minutes of published runtime from 140Wh is about 4.7Wh per minute -- roughly a quarter of what a blower on turbo burns.

What the numbers favor

  • Lifetime warranty on the carbon fiber shaft, published
  • POWERLOAD winds the line for you -- the job everyone hates
  • 0.095 in line, the heavier of the two common home gauges
  • Split shaft, so it takes EGO's multi-head attachments

What they don't

  • Ships with the small 2.5Ah pack; 30 minutes is a modest published runtime
  • EGO does not publish a weight for this configuration
Skip this one if

you only edge a short driveway. An 8 in edger attachment on a power head you already own does that job better and costs a fraction.

How it scores

Warranty10.0
Line handling9.5
Swath8.5
Included energy6.0
Attachment support9.5

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.

4. Best overall

EGO Power+ 18" Chain Saw CS1804

EGO · EGO 56V ARC Lithium · Our score 8.8/10

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300 published cuts through a 4x4 on one 280Wh pack, on an 18 in bar -- a work figure rather than a runtime figure.

Published specs

Bar length18 in
Chain3/8 in pitch, 0.050 in gauge, 62 drive links
Motor speed11,000 RPM
Cuts per chargeUp to 300 cuts on a 4x4 (5.0Ah)
Battery (kit)56V 5.0Ah
Weight14.5 lb with battery

Source: 18" Cordless Chain Saw (CS1804), egopowerplus.com

Our arithmetic — Energy per cut
~0.93Wh per 4x4 cut

280Wh (56V x 5.0Ah) over 300 published cuts = about 0.93Wh per cut. A useful way to size a pack: 100 cuts of firewood needs roughly 93Wh, so a 2.5Ah pack covers it with margin.

What the numbers favor

  • Publishes work done (300 cuts on a stated material) rather than a vague runtime
  • Standard 3/8 in pitch, 0.050 in gauge chain -- replacements are commodity items
  • 18 in bar on a consumer cordless saw
  • Runs on the same 56V packs as the mower, blower and trimmer

What they don't

  • 14.5 lb with the battery fitted is heavy for extended overhead work
  • The 300-cut figure is on a 4x4; hardwood rounds will be a fraction of it
Skip this one if

your cutting is limbs under 6 in. An 18 in bar is more saw than that needs, and a 10 in pole saw keeps you off the ladder.

How it scores

Work-per-charge clarity10.0
Bar length9.0
Chain commonality9.5
Weight6.0
Platform fit9.5

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.

5. Best overall

EGO Power+ Z6 42" Zero Turn ZT4204L

EGO · EGO 56V ARC Lithium · Our score 8.8/10

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2,240Wh of the same 56V packs that run the rest of your yard, and a published two acres on a charge.

Published specs

Deck42 in
Power claim22 HP gas equivalent
Top speed8 MPH
Batteries included4 x 56V 10.0Ah
Bay capacityUp to 6 packs
CoverageUp to 2 acres per charge
Warranty5-yr tool, battery and charger

Source: POWER+ 42" Z6 Zero Turn Riding Mower (ZT4204L), egopowerplus.com

Our arithmetic — Nameplate watt-hours
2,240Wh installed, 3,360Wh at full bays

56V x 10.0Ah = 560Wh per pack. Four packs = 2,240Wh; six bays filled = 3,360Wh. Against the published 2 acres on four packs, that is roughly 1,120Wh per acre -- the number to size any electric riding mower against.

What the numbers favor

  • Uses the identical 56V ARC Lithium packs as EGO's handheld tools -- the batteries are not stranded
  • Six battery bays, so range is a purchase decision rather than a fixed limit
  • 5-year warranty covering tool, battery AND charger
  • 32 published LED lights, which matters more than it sounds for dusk mowing

What they don't

  • Four 10.0Ah packs is a substantial share of the purchase price on its own
  • EGO's published watt-hour figure for this configuration does not reconcile with 56V x 10.0Ah x 4; we publish our own arithmetic (2,240Wh) and show the working rather than repeat a number we cannot verify
Skip this one if

your lot is under an acre. A 21 in walk-behind finishes a half acre in the time it takes to get a zero turn out of the shed, and costs a fifth as much.

How it scores

Installed energy9.5
Expandability10.0
Platform fit10.0
Warranty9.5
Entry cost4.0

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.

#ad As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. How we're funded.

Common questions

Are all EGO 56V batteries interchangeable?
Across the EGO 56V ARC Lithium range, yes. The same pack that runs a 15 in string trimmer runs the 42 in Z6 zero turn -- EGO's rider takes the identical handheld packs, which is unusual and is the strongest single argument for the platform.
What EGO 56V pack sizes are there?
The packs referenced across the product pages we cite are 2.5Ah, 4.0Ah, 5.0Ah, 7.5Ah and 10.0Ah. Converted at EGO's advertised 56V those are 140Wh, 224Wh, 280Wh, 420Wh and 560Wh.
What is EGO's warranty?
Five years on the tool and three on the battery for the mower, blower and trimmer we hold specs for, plus a published lifetime warranty on the ST1521S carbon fiber shaft. The Z6 zero turn is published at five years covering tool, battery and charger.
What is the EGO multi-head system?
A power head (PH1400 or PH1420) that accepts interchangeable attachments. In our registry the EA0800 8 in edger and PSA1000 10 in pole saw are both multi-head attachments -- no motor, no battery, and no use without the power head. The ST1521S trimmer has a split shaft and takes the same attachments.
Is EGO worth it for a small yard?
Often not for the mower. A 420Wh pack on a quarter-acre lawn is headroom you pay for and never discharge, and a 57.5 lb push mower on a different platform cuts the same grass. EGO earns its place when the tool count grows.
Which EGO tool should I buy first?
Whichever job you actually have, bought as a kit so you get a pack and a charger. From the second tool onward buy bare, provided your pack carries enough watt-hours for the new job.

Sources

  1. EGO POWER+ 21" Select Cut System (LM2135SP), egopowerplus.com
  2. EGO POWER+ 650 CFM Blower (LB6504), egopowerplus.com
  3. EGO POWER+ 15" POWERLOAD String Trimmer with Carbon Fiber Shaft, egopowerplus.com
  4. EGO POWER+ 18" Cordless Chain Saw (CS1804), egopowerplus.com
  5. EGO POWER+ 42" Z6 Zero Turn Riding Mower (ZT4204L), egopowerplus.com
  6. EGO 8" Edger Attachment for Multi-Head System (EA0800), egopowerplus.com