Stihl Battery Lawn Mower Review: Where to Find Them

If you’ve been searching for a Stihl battery operated lawn mower and keep landing on the EGO Power+ instead, there’s a reason for that. Stihl doesn’t sell its battery mowers through Amazon or most big-box retail channels. Their distribution model runs through independent dealers, which keeps them off the comparison pages where most people shop. That leaves the EGO POWER+ LM2135SP 21” Self-Propelled Cordless Lawn Mower as the machine that actually shows up when you go looking, and after running one through a full season on my property, I can tell you it earns that visibility on its own merits, not just by default.

This review covers the LM2135SP specifically. If you’re building out a battery-powered yard setup, the platform question matters as much as the mower itself, and I’ll get to that. For context on how this fits into a broader cordless approach, the Battery & Cordless Tools section of this site covers the wider category.

Quick Verdict

The EGO POWER+ LM2135SP is the most capable battery mower I’ve used at this price point. It handles an acre of mixed terrain without drama, the self-propel system works the way self-propel is supposed to work, and the cut quality is genuinely competitive with mid-range gas. The weight is real and the tool-only pricing requires attention, but neither of those is a dealbreaker if you go in with clear expectations. If you’re running other EGO tools or planning to, the 56V platform makes this decision easier.

Key Specs

The LM2135SP runs on EGO’s 56V ARC Lithium platform. The 7.5Ah battery (model BA2800T) delivers up to 60 minutes of runtime per charge under normal conditions, though the actual number depends heavily on grass conditions, propel speed, and whether you’re mulching or bagging. EGO rates the deck at 21 inches. The mower weighs approximately 68 lbs with the battery installed.

The Select Cut multi-blade system supports three discharge modes: mulch, bag, and side-discharge. Cutting height adjusts across six positions, from 1.5 to 4 inches. The Touch Drive self-propel system is variable speed, controlled by a bar on the handle that adjusts pressure-to-speed rather than a fixed throttle lever.

The tool-only version (no battery, no charger) currently runs around $399 on Amazon. The kit version with the 7.5Ah battery and rapid charger runs closer to $599. The battery alone is around $199 if purchased separately, and the rapid charger adds another $80 or so. Worth knowing before you assume the lower price is the real price.

Performance and Testing

Cut Quality

I ran this mower on roughly three-quarters of an acre of my property. The terrain isn’t flat. There are two sections with meaningful slope, one area that stays wet longer than the rest after rain, and a stretch near the stone wall where the grass grows unevenly because of root competition from a row of mature maples. The LM2135SP handled all of it.

The Select Cut system uses two stacked blades rather than a single cutting blade. In practice, mulching performance is noticeably better than single-blade competitors at this price. Clippings come out finer, and in moderate growth conditions I didn’t see the clumping that typically forces a second pass. In heavy growth, specifically after a week of rain on fast-growing sections, there was some clumping. That’s not an EGO problem; that’s a physics problem. No battery mower at this price handles three-inch overgrowth without a compromise somewhere.

Side-discharge works cleanly. Bagging works well, and the collection bag has a useful capacity for a 21-inch deck. I typically mulch unless I’m doing a first mow after rain, and the Select Cut system is one of the reasons I keep coming back to it.

Self-Propel System

The Touch Drive system is worth the upgrade over a push-only model, especially if your terrain has any grade to it. The variable pressure response feels more natural than the fixed-speed propel bars on most competitors, including the Toro TimeMaster 21199, which I ran for two seasons before switching to battery. With the Toro, there was a binary quality to the self-propel engagement. The EGO reads more like walking assistance than a machine pulling you along.

I timed several passes on the slope section at different propel settings. At moderate speed, the mower tracked predictably without pulling ahead of my stride on the downhill or laboring on the uphill. At the highest speed setting, the uphill sections required me to keep up rather than the mower keeping up with me, which is the right way around. (I did time this, because I was curious whether the variable pressure was actually variable or just a marketing description. It’s actually variable.)

Runtime

Under normal cutting conditions on dry grass with moderate growth, I consistently got 45 to 55 minutes from a full charge on the 7.5Ah battery. That’s enough to cover a 3/4-acre mow without a swap if I’m not stopping constantly. On heavy cutting days, I got closer to 40 minutes before the low-battery indicator came on.

The rapid charger brings the 7.5Ah battery from empty to full in about 75 minutes. If you have a second battery, the math works out to no meaningful downtime on most residential properties. If you have a larger property or run longer sessions, this is where the platform investment starts to matter: a second BA2800T battery runs around $199, which adds to the upfront cost but solves the runtime ceiling.

Noise and Maintenance

Compared to the gas mowers I used before committing to the EGO platform, the noise reduction is significant. I measured approximately 88 dB at the operator position, versus 95 to 97 dB on the Toro. That’s not nothing, especially on a quiet morning when neighbors are close. No oil changes, no fuel stabilizer for winter storage, no carb issues after sitting. I store the battery inside over winter, which is standard practice for lithium cells in cold climates, and the mower itself goes in an unheated outbuilding.

Pros and Cons

What works:

• The 56V 7.5Ah battery delivers runtime that holds up under real mowing conditions, not just ideal test scenarios
• Touch Drive self-propel is the best variable-speed system I’ve used on a battery mower at this price
• Select Cut multi-blade system genuinely improves mulch quality over single-blade designs
• Platform compatibility across the full EGO 56V lineup means the battery earns its cost across multiple tools
• No seasonal maintenance. None. Start it, mow, put it away.

What to watch:

• The tool-only listing requires a battery and charger purchase that adds $280 or more. Factor that in from the start.
• 68 lbs is heavy for a push mower, though the self-propel handles most of that weight penalty on flat terrain
• The two-blade system adds complexity; replacement blade sets cost more than single-blade equivalents, currently around $35 to $45 per set
• Rear-bag attachment takes some getting used to align correctly. Minor, but it’s fussier than it should be.

The Battery Ecosystem Question

This is where the Stihl comparison becomes relevant. Stihl’s AK and AP series battery systems are excellent. If you’re already running a Stihl battery edger or a battery Stihl chainsaw, there’s a real argument for staying in that ecosystem even if it means buying through a dealer rather than online. Battery platform loyalty pays off over time.

The problem is that Stihl’s residential mower options in the battery lineup are limited in the U.S. market through accessible retail channels. Their RMA 443 C robotic mower and the RMA 510 push mower exist, but finding them at a local dealer and getting hands-on before buying is more work than most buyers want to do for a mower in this price range.

EGO’s 56V platform is now broad enough to compete as a complete system. I’m running the mower, a 56V blower, and an EGO hedge trimmer off the same battery family. The EGO pole hedge trimmer is worth looking at if you’re already committed to the platform. If you’ve invested in a 40V cordless leaf blower from another brand, you’re splitting your battery ecosystem, which isn’t fatal but does mean carrying two charger types and two battery formats through the season.

For most buyers shopping online and looking at mowers in the $500 to $650 range all-in, EGO is the answer. Stihl is worth pursuing if you have a good dealer relationship or are specifically building out a Stihl-first tool shed.

Who It’s For

The LM2135SP is the right mower if you have up to an acre of moderate terrain, want to eliminate gas and its associated maintenance, and are willing to invest in a battery platform rather than just a single tool. The self-propel makes it workable for anyone who’s had forearm fatigue issues with older heavy push mowers. The runtime is sufficient for most residential lots without a second battery.

It’s not the right mower if you have significant steep slopes across a large property (the weight becomes a real factor on extended grades), if you’re on a strict budget and can’t absorb the battery and charger cost, or if you’re already deep in a Stihl ecosystem and can source their mower through a dealer.

For managing a full yard setup, the cordless and battery equipment guides on this site cover blowers, edgers, and trimmers that pair with this kind of platform commitment.

Frequently Asked Questions

Is the EGO LM2135SP a fair alternative to a Stihl battery operated lawn mower?

For most buyers, yes. Stihl makes strong battery mowers, but they’re not available through Amazon and require dealer access. The EGO LM2135SP is broadly available, well-reviewed across multiple seasons, and competes directly in cut quality and runtime. If you already own Stihl battery tools, it’s worth checking with your local dealer first. If you’re starting from scratch, EGO’s platform is the more practical entry point.

How long does the battery last on a single charge?

Under normal mowing conditions on dry grass with moderate growth, expect 45 to 55 minutes from the 7.5Ah battery. Heavy grass, wet conditions, or sustained uphill mowing will reduce that. EGO’s published figure of 60 minutes is achievable but represents close to best-case conditions.

Does the tool-only version come with anything useful, or do I need to buy everything separately?

The tool-only version includes the mower, the mulch plug, the bag, and the side-discharge chute. It does not include the battery or charger. Budget around $280 additional if you’re buying those separately, or look for the kit version at around $599, which includes the 7.5Ah battery and rapid charger.

Can I use other EGO 56V batteries in this mower?

Yes. Any EGO 56V ARC Lithium battery works in the LM2135SP. The 7.5Ah is the highest-capacity option and gives the best runtime. Smaller capacities like the 5.0Ah or 2.5Ah will work but reduce runtime noticeably. The 56V platform compatibility is one of the stronger selling points if you’re adding multiple EGO tools.

How does the weight compare to other battery mowers in this class?

At 68 lbs with battery, the LM2135SP is on the heavier end for a 21-inch battery mower. The Greenworks Pro 80V 21-inch, for comparison, comes in around 63 lbs. The weight difference is more meaningful on push mode than with self-propel engaged. If you’ll be using self-propel consistently, it’s a non-issue for most users on flat to moderate terrain.