For most house lawns I pick the EGO LM2114SP, and the EGO LM2123SP-2 vs LM2114SP choice turns on one thing: how many minutes you mow before a pack runs flat. Buy the LM2123SP-2 if your mowing outlasts one 6.0Ah pack, because its kit adds a second battery and a bigger charger. I mow a house lawn and the orchard alleys around it, so I judge a mower by the minutes of real mowing one pack buys. Below I compare the two kits row by row, then run time, drive, cutting, safety and value, and I end with who should buy which.
EGO LM2123SP-2 vs LM2114SP: The Short Answer
Both are 21-inch, single-blade, self-propelled, 3-in-1 mowers on EGO’s 56V battery platform, and the mower body is very close between them. Buy the LM2114SP if one 6.0Ah pack covers your lawn. The LM2123SP-2 suits you if you want a second pack in the box, a bigger charger and the Touch Drive handle. The table below puts them side by side, row by row.
| Spec | LM2123SP-2 kit | LM2114SP kit |
|---|---|---|
| In the kit | Mower, one 4.0Ah and one 6.0Ah 56V battery, 550W Rapid Charger, 2-bushel bag | Mower, one 6.0Ah 56V battery, 320W charger, 2-bushel bag |
| Battery energy, derived | About 224 Wh and 336 Wh packs; the mower takes one pack at a time | About 336 Wh (56 V x 6.0Ah) |
| Run time, maker’s figure | Up to 80 minutes with the two packs used in turn | Up to 50 minutes with the 6.0Ah pack |
| Run time by load, EGO manual, one pack | 60, 45 and 30 minutes at light, medium and heavy load, with a separate 7.5Ah pack that neither kit includes | 50, 40 and 25 minutes at light, medium and heavy load, with the 6.0Ah pack |
| Deck and cutting heights | 21 in; 7 heights from 1-1/4 to 4 in | 21 in; 7 heights from 1-1/4 to 4 in |
| Drive | Touch Drive: speed knob and a self-propel trigger; mph not published | Variable speed: speed knob and two triggers, either hand; mph not published |
| Grass handling | Mulch with the insert, 2.0-bushel bag, side discharge | Mulch with the insert, 2.0-bushel bag, side discharge |
| Weight, without battery, with mulching insert | 50.7 lb | 50.7 lb |
| Cutting torque, maker’s figure | Up to 6.0 ft-lbs | Up to 6.0 ft-lbs |
| Warranty, maker’s | 5 years on the tool, 3 years on the battery | 5 years on the tool, 3 years on the battery |
Two rows decide it: the kit contents and the run time. The deck, the seven cutting heights, the bare weight and the warranty match.
What Is Actually Different Between These Two Kits
The model codes confuse buyers, so here is the plain version. EGO sells this 21-inch self-propelled mower as a bare tool and as kits, and these two codes are kits with different batteries, chargers and drive handles.
The EGO Power+ LM2123SP-2 21-Inch Touch Drive Mower Kit comes with a 4.0Ah and a 6.0Ah battery and the 550W Rapid Charger. The handle carries what EGO calls Touch Drive, where a speed knob sets the pace and a trigger starts the self-propel while you hold the bail.
The EGO Power+ LM2114SP 21-Inch Self-Propelled Mower Kit comes with one 6.0Ah battery and the 320W charger. Its handle has a speed knob and two triggers, and either hand can start the drive.
The mower takes one battery at a time, so the second pack is a swap, not a second motor. With the LM2123SP-2 kit I keep the spare pack charging in the workshop while the first one works in the mower. EGO’s 56V packs also run the maker’s other 56V tools on its approved list, so check that list before you count the spare for another tool. I cover that kit in more detail in my review of the EGO LM2123SP-2.
Run Time and the Second Battery
Run time is where the two kits differ most, and the two maker figures are not a matched test. EGO says the LM2123SP-2 runs up to 80 minutes with its two packs used in turn, and the LM2114SP up to 50 minutes with its single 6.0Ah pack.
EGO’s manual gives the spread behind those figures by load. The LM2114SP lists 50 minutes at light load, 40 at medium and 25 at heavy with the 6.0Ah pack. For the Touch Drive mower the manual lists 60, 45 and 30 minutes with a separate 7.5Ah pack that neither kit includes, and EGO publishes no stand-alone run time for the 6.0Ah pack in the LM2123SP-2 kit. I read these rows as ranges, not as a race. I cover the LM2114SP’s run time by load in my review of the EGO LM2114SP.
The stored energy shows the gap better. A 6.0Ah pack at 56 V holds about 336 Wh, and the LM2123SP-2 kit adds a 4.0Ah pack of about 224 Wh, about two thirds more energy in the box. Heavy load, tall grass and a fast drive setting shorten every figure. EGO’s manual says to cut no more than 1-1/2 inches in one pass and to skip wet grass, and a university field study found that mowing by the one-third rule cut the number of mowing events by 31 percent against weekly mowing (1).
On the 6.0Ah LM2114SP kit, the pack stopped the mower at the end of the last alley, and the stop was abrupt. I plan an alley in minutes of real mowing, not by the figure on the box. With the second pack I walk to the shed, swap and carry on, so the long alleys no longer end the job.
Winner: EGO LM2123SP-2, because its kit holds about two thirds more stored energy and a spare pack.
Self-Propel Controls and Handling
The drive works the same way on both mowers, and the handle is where they differ. Both have a speed knob and rear-wheel drive gear, and EGO publishes no mph range for either. I rank more drive-assisted models in my roundup of self-propelled lawn mowers I rate.
The knob ships at its lowest position, where the self-propel does nothing, so turn it slightly forward before you press a trigger. On the LM2123SP-2 you hold the bail and press the Touch Drive trigger. The LM2114SP gives you either of two triggers, so the drive starts from whichever hand is free.
On the level house lawn I set the LM2123SP-2 speed knob low at the corners and under the shade trees, and a little higher on the straight runs. The LM2114SP triggers work from either hand, which helps when I trim along the tree strip with the other hand on the handle. I switch the drive off and walk either mower back to the shed with the blade stopped.
Releasing the bail stops the blade, and EGO says it stops within three seconds. The drive trigger stops the drive when you let go, but it does not brake the wheels. After you turn the drive off, pulling the mower backward can lock the wheels for a moment, and a small push forward frees them. According to the CPSC, avoid mowing in reverse unless you must, and look down and behind before and while you back up.
Winner: neither, because the speed knob, the bare weight and the rear-wheel drive match, and the handle is a matter of taste.
Cutting Heights, Grass Handling and Thick Grass
The cut is the same on both mowers. Each has a 21-inch deck, seven heights from 1-1/4 to 4 inches set with a one-handed lever, and three ways to handle clippings. My roundup of mulching mowers for fine clippings compares battery and gas models.
You mulch with the insert fitted, bag into the 2.0-bushel bag, or throw to the side with the chute, and the insert must come out before you fit the bag or the chute. EGO’s manual says mulching works best on dry grass with about a third of the blade length removed, and for thick or tall grass it says to cut high first and then cut again lower. If the deck loads up, the overload protection stops the motor and the status light flashes orange. To change mode, stop the motor, wait for the blade to stop, then take out the battery before you move the insert, the bag or the chute.
Wet spring grass clogged the deck once, so I stopped the motor, waited for the blade to stop, took out the battery and cleared the deck with a stick and a gloved hand, and I now wait for dry grass before I mow again. I sharpen the blade before the spring mow and read the grass tips afterward, since ragged brown tips mean the edge has gone. A Nebraska field trial found that repeated mowing with a dull rotary blade lowered the quality of Kentucky bluegrass (2). EGO’s manual says to sharpen about twice a season and to fit the identical EGO blade.
Winner: neither, because the deck, the heights and the clippings modes match.
Charging, Storage and Battery Care
Both kits use EGO’s 56V ARC Lithium packs, and the care rules come from the manual. Use the maker’s charger only, charge within the temperature range in your manual, and never use a damaged or modified pack. I cover nine options for small and large lawns in my roundup of cordless battery lawn mowers.
EGO gives about 80 minutes to fill a 6.0Ah pack on the 320W charger. It publishes no charge time for the 550W charger with the 4.0Ah and 6.0Ah packs, so I do not compare the two chargers. Charging a lithium-ion battery below freezing can cause permanent lithium plating, according to OSHA, and OSHA advises following the manufacturer’s instructions for charging and storage (3).
For storage, EGO’s manual says to take the pack out and keep it at room temperature in a dry place. In a lab study, lithium-ion cells held at full charge for nine months lost about 10 percent of their capacity at 35 C and about 43 percent at 60 C, so a warm shed is a poor place for a full pack (4). In winter I keep the packs indoors at room temperature and bring the mower to the shed without them.
Winner: neither, because the care rules match and EGO publishes no charge-time advantage for either kit. The choice comes back to whether you need the supplied second battery.
Slopes and Safe Mowing
Both mowers share one slope rule, and it is a hard one. EGO’s manual says not to mow slopes greater than 15 degrees, to mow across the face of a slope and never up and down, and to avoid wet slopes, ditches and embankments.
A paper on ride-on mowers notes that many people cannot judge a slope by eye (5), so use the gauge in the manual and not your eye. If you feel uneasy on a slope, EGO says not to mow it. My roundup of lawn mowers that handle hills ranks models by drive and slope limits.
I keep the mower off the bank beside the drainage ditch and work that edge by hand. Before the first pass I walk the lawn and pick up sticks, fruit and stones, and I cross the gravel edge with the blade stopped. Most lawnmower eye injuries seen in US emergency departments came from thrown projectiles such as grass, dirt and rocks, and only 2 percent of those documented the use of eye protection (6). Wear safety glasses, closed sturdy shoes and long trousers.
Keep children and pets out of the yard while you mow. EGO says to keep bystanders at least 100 feet away, and children under 14 must not run the mower. Before you clear the deck, change the bag or the chute, or touch the blade, turn the motor off, wait until the blade stops, and take out the battery. Wear heavy gloves on the blade, and never disable the bail or the safety button.
Value Over Several Seasons
The LM2114SP sits in the mid-range and the LM2123SP-2 in the upper mid-range, and the gap pays for a second pack and a bigger charger. I compare another pair of 21-inch self-propelled kits in LM2135SP compared with LM2114SP.
If you will buy a second pack for the LM2114SP anyway, price that pack against the difference between the kits before you decide. Warranty does not separate them, since EGO gives both a 5-year tool warranty and a 3-year battery warranty. The spare pack also fits the maker’s other 56V tools on its approved list, so it may serve a trimmer or a blower later.
Winner: EGO LM2114SP for the buyer whose lawn one pack covers, and the LM2123SP-2 for the buyer who needs the spare pack.
Choose the LM2123SP-2 If
Pick this kit when the mowing outlasts a single pack and you want the swap built into the box.
- Your lawn or alleys need more than one pack: the 4.0Ah and 6.0Ah packs give you a swap at the shed.
- You prefer one self-propel trigger: Touch Drive pairs a speed knob with a single trigger, where the LM2114SP has two.
- You want the bigger charger: the 550W Rapid Charger ships with this kit.
Skip it if one pack already covers your lawn or if the ground has slopes above 15 degrees. On the Touch Drive handle I keep one hand on the bail and a thumb free for the speed knob on the long straight alleys.
Choose the LM2114SP If
Pick this kit when one 6.0Ah pack covers the mowing and you want the lower tier. My comparison of EGO LM2114 against LM2114SP shows what self-propel adds over push.
- A house lawn that one pack finishes: the 6.0Ah pack lists up to 50 minutes at light load.
- Thick growth handled with method: cut high first, then cut again lower, as the manual says.
- Two triggers: either hand starts the self-propel, which suits trimming alongside the mowing.
Skip it if your mowing regularly runs past one pack, because heavy load is listed at 25 minutes. On the LM2114SP the dual triggers let me keep a hand free for the gate, and in thick spring grass I slow the drive so the clippings discharge cleanly. For dense lawns, my roundup of lawn mowers for thick grass goes further.
Which Kit Goes in My Shed
The two kits cut the same grass at the same width, so I choose by how long my mowing runs. For the orchard alleys, where one pack ends the job early, the second pack earns its place. For a house lawn that one pack finishes, the cheaper kit does the same job and leaves nothing unused. The battery, the charger and the drive handle are the only real differences. On the EGO LM2123SP-2 vs LM2114SP question, the answer for my alleys is the two-pack kit, and for a plain house lawn it is the 6.0Ah kit. I compare nine battery and gas options in my lawn mower picks by size.
Frequently Asked Questions
Which Ego lawnmower should I get?
Choose the EGO LM2114SP if one 6.0Ah pack covers your lawn, and choose the LM2123SP-2 if your mowing runs past one charge. Both are 21-inch single-blade self-propelled mowers with seven cutting heights, so the choice rests on the kit, the charger and the drive handle that suit your own mowing time.
What is the best cutting width for a lawn mower?
The best cutting width for a lawn mower depends on the size of the lawn and the gates it must pass, and small walk-behind mowers are usually up to about 22 inches wide. Both of these EGO kits cut 21 inches, which suits a house lawn and straight orchard alleys without needing much room to turn.
What are the key differences between a 2-in-1 and a 3-in-1 lawn mower?
A 3-in-1 lawn mower offers three ways to handle clippings, which are mulching, bagging and side discharge, and a 2-in-1 offers two of them. Both EGO mowers here are 3-in-1, and the insert comes out only after you stop the motor, wait for the blade to stop and remove the battery.
Are Ego mower blades interchangeable?
EGO’s manual says to fit the identical EGO blade for your model, so check the part number for your mower before you buy a replacement. Whatever the blade, stop the motor, wait for the blade to stop, take out the battery and wear heavy gloves before you touch the blade.
What happens if you push a self-propelled lawn mower?
Pushing a self-propelled mower with the drive off works, but EGO’s manual says the wheels can lock after you pull it backward, and a small push forward frees them. With the drive on, the mower walks at the pace set on the speed knob while you hold the bail and steer.
References
- Law QD, Bigelow CA, Patton AJ. Selecting Turfgrasses and Mowing Practices that Reduce Mowing Requirements. Crop Science. 2016;56(6):3318-3327. doi:10.2135/cropsci2015.09.0595
- Steinegger DH, Shearman RC, Riordan TP, Kinbacher EJ. Mower Blade Sharpness Effects on Turf. Agronomy Journal. 1983;75(3):479-480. doi:10.2134/agronj1983.00021962007500030015x
- Occupational Safety and Health Administration. Preventing Fire and/or Explosion Injury from Small and Wearable Lithium Battery Powered Devices. Safety and Health Information Bulletin SHIB 06-20-2019. US Department of Labor; 2019.
- Mao Z, Farkhondeh M, Pritzker M, Fowler M, Chen Z. Calendar Aging and Gas Generation in Commercial Graphite/NMC-LMO Lithium-Ion Pouch Cell. J. Electrochem. Soc. 2017;164(14):A3469-A3483.
- Karnes EW, Leonard SD, Lenorovitz DR. Ride-on lawnmowers warnings: Slope measurements and safety-by-separation. WORK: A Journal of Prevention, Assessment & Rehabilitation. 2012;41(S1):3629-3632. doi:10.3233/wor-2012-0116-3629
- Stange NR, Jennissen CA. Lawnmower-Related Eye Injuries in the U.S., 2004 to 2023. Am J Ophthalmol. 2025;277:7-16.
Safety Note: A mower blade can cut through a hand or foot and throw stones and sticks with force. Pick up debris before you mow, keep the discharge guard, bag or mulch plug in place, never point the discharge at people, windows or cars, and keep children and pets indoors while the mower runs; never let a child ride on a riding mower. Never disable the operator-presence control. Before you clear a clog, tip the mower or touch the blade, stop the engine or motor, wait until the blade has stopped, then remove the safety key or battery, or disconnect the spark plug wire on a gas model. Mow across slopes with a walk-behind mower and up and down with a riding mower, within the slope limit in your manual, and stay off wet slopes, drop-offs and ditch edges; on a rider with a rollover protection bar, keep it up and wear the seat belt as the manual says. Refuel only outdoors with the engine off and cool, wear closed shoes and eye and hearing protection, and read the manufacturer’s manual.