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The STIHL RMA 510 V is a self-propelled 51 cm cordless mower, and its fit depends most on whether your lawn is within STIHL’s estimated area per charge: about 2,562 sq ft with an AP 300 battery. The AL 300 is listed to recharge that battery to 80% in about 45 minutes and to full in about 65 minutes. It looks like a practical choice for a lawn that fits comfortably within that estimate, but the available evidence does not establish it as a dependable one-charge option for a large property or prove its cutting performance in a direct independent test.
Is the STIHL RMA 510 V with AP 300 and AL 300 worth it?
It may be worth considering if you want self-propelled speed control, a steel deck and compatibility with STIHL’s AP battery system—and your mowing area is close to or below STIHL’s working-area estimate. The key trade-off is that the AP 300 estimate is 2,562 sq ft per charge, not a guaranteed result. A larger or difficult-to-mow lawn may need another charged battery, a pause to recharge, or a different mowing plan.
There is enough information to assess its basic specifications and the stated battery estimate, but not to give a firm performance verdict. CHOICE lists a 2020 test of this exact mower, battery and charger combination, while reserving detailed performance scores for members. A separate test of the push RMA 510 is not a direct test of this self-propelled model.
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Quick specification check
| Specification | RMA 510 V with AP 300 and AL 300 |
|---|---|
| Power system | 36 V AP 300 battery, listed as 6 Ah by CHOICE |
| Cutting width | 51 cm (20.1 in) in the owner manual; STIHL product information describes a 21-inch deck |
| Weight | 29 kg (63.9 lb) without battery |
| Grass bag capacity | 70 L maximum |
| Blade speed | 3,200 rpm; 2,800 rpm in ECO mode |
| Self-propel speed | 1–4.5 km/h |
| Cutting-height information | 25–100 mm across eight cutting positions, according to CHOICE’s 2020 listing |
| Warranty listing | Two years for mower, battery and charger in CHOICE’s 2020 listing |
The width figures differ because the manual specifies 51 cm (about 20.1 inches), while product information calls it a 21-inch deck. Treat 51 cm as the manual’s stated cutting width; the rounded product-page description is not a second, more precise measurement.
#1 Best Overall
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How much lawn can an AP 300 mow?
STIHL estimates that the RMA 510 V can cover about 2,562 sq ft on an AP 300 charge. The catalog gives a higher estimate of 3,078 sq ft with an AP 300 S. Those figures are working-area estimates, not guaranteed coverage or a promise that every lawn of that size can be finished on one charge.
The AP 300 S estimate is 516 sq ft higher—about 20% more than the AP 300 estimate. That comparison is useful when judging the capacity options, but actual coverage will vary. STIHL says results depend on battery type and charge level, the tool model, operating conditions, the user’s operating style and remaining battery capacity.
Use the estimate as a planning limit
Measure the grass you actually mow, rather than relying on the property’s total lot size. Then allow for the conditions that can make a mowing session differ from a catalog estimate. A lawn with slopes, obstacles or other demanding conditions may not match a simple working-area figure; the available catalog information does not quantify how much any particular condition changes coverage.
Rank #2
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- If your mowing area is comfortably below 2,562 sq ft, the AP 300 estimate gives you a reasonable starting point, with a margin for variation.
- If the area is close to that estimate, plan for the possibility that the mower may not finish before the battery is depleted.
- If it is larger, compare the AP 300 S estimate, consider a second compatible battery, or plan a charging break rather than treating one charge as sufficient.
STIHL also describes a second-battery holding slot. That is a useful storage feature, but the cited information does not establish that it automatically switches batteries or extends mowing time without a battery change.
How long does the AL 300 take to charge an AP 300?
STIHL lists approximately 45 minutes to charge an AP 300 to 80% on the AL 300, and approximately 65 minutes to reach 100%. The 45-minute figure is a partial-charge time; it is not the time for a full recharge.
For a lawn that requires more than one battery’s estimated coverage, the difference matters: a planned short break can restore most—but not all—of the charge, while a full recharge takes longer. The catalog figures are approximate, so use them for scheduling rather than expecting an exact finish time in every situation.
Rank #3
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- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
What features affect mowing and storage?
The RMA 510 V combines a steel mowing deck with a brushless motor, sealed ball-bearing wheels, a folding and adjustable handle, a locking key and ECO mode. These are concrete design features; the available information does not quantify their effect on service life, noise, cutting quality or storage-space savings.
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The drive lets you select a walking speed from 1 to 4.5 km/h. That range can help match the mower’s pace to your own, but it does not by itself establish how well the mower handles a particular slope or uneven surface. Compare the speed range with your walking pace and the terrain you need to cover.
ECO mode and blade speed
The manual lists a blade speed of 3,200 rpm, dropping to 2,800 rpm in ECO mode. STIHL says the mower has no gradual drop in power as the battery runs down and that users can work at full speed until the battery is depleted. That statement describes STIHL’s product information; it is not a published independent measurement of cutting performance across the battery’s charge.
Rank #4
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Bag and handle
The maximum grass-bag capacity is 70 L. The adjustable, folding handle is relevant if you need to change handle position or make the mower more compact for storage, though the supplied specifications do not give folded dimensions.
What do independent tests establish?
CHOICE identifies a 2020 test of the exact RMA 510 V with AP 300 and AL 300 combination. Its public specification fields include a 36 V, 6 Ah battery, eight cutting positions, a 25–100 mm cutting-height range, an IPX4 water-resistance rating, a 51 cm cut and a two-year warranty listing covering the mower, battery and charger. CHOICE keeps its detailed performance scores for members, so the public information does not support a score, ranking or comparative performance claim.
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Pro Tool Reviews tested the related push RMA 510, not the self-propelled RMA 510 V. It reported strong power behavior and a 48-minute maintenance-cut result for its test setup. That result should not be treated as the RMA 510 V’s runtime: the model and test conditions differ, and the result is not a direct measure of how much lawn this review’s mower can cut.
Best Value
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- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
What should you check before buying?
Match the mower and battery to your lawn and local purchase conditions rather than relying on the model name alone. Kit contents, current stock, local pricing and warranty terms can vary; the available information does not establish a current price or a universal package configuration.
- Area: Compare your measured mowing area with the AP 300 and AP 300 S estimates, leaving room for operating conditions to affect coverage.
- Battery and charger: Confirm that the package actually includes the AP 300 and AL 300 if those are the components you expect. STIHL lists AP-series batteries and AL 101, AL 300 and AL 500 chargers as approved for the AP battery family.
- Terrain and pace: Consider whether a variable drive from 1 to 4.5 km/h suits your walking speed and lawn layout.
- Cutting setup: Confirm that the 25–100 mm range and eight positions listed by CHOICE fit your preferred cutting heights.
- Warranty and support: Treat CHOICE’s two-year warranty entry as a 2020 listing, not confirmation of current terms in your region. Check the warranty that applies to the exact mower, battery and charger you are buying.
- Local availability: Verify stock, included components and service options with the seller or a local STIHL dealer before purchase.
Who is the RMA 510 V best suited to?
It is most compelling for someone who values self-propelled mowing and already uses—or plans to use—STIHL AP batteries, provided the lawn’s size and conditions work with the battery plan. Its manual specifications make the basic trade-offs clear: a 51 cm cut, a 70 L maximum bag and variable drive, paired with an estimated 2,562 sq ft per AP 300 charge.
It is harder to recommend on the available evidence for a large lawn that must be finished in one session. The higher AP 300 S coverage estimate may help, but neither catalog figure guarantees real-world coverage, and the public independent-test information does not include detailed scores for this exact configuration. A buyer who needs a confident performance comparison should look for a direct test of the RMA 510 V and confirm current regional warranty and kit details.
Frequently Asked Questions
Can I use an AP 300 battery with other STIHL AP tools?
STIHL identifies the AP 300 as part of its AP battery family, and lists AP-series batteries as approved for the RMA 510 V. Confirm compatibility for any other specific tool in that tool’s own specifications before sharing a battery.
Is the RMA 510 V safe to hose down after mowing?
CHOICE’s 2020 specification listing gives the mower an IPX4 water-resistance rating. That rating alone is not an instruction to hose down the mower; follow the owner manual’s cleaning and maintenance guidance.
Does the RMA 510 V have a side-discharge option?
The available product and manual details identify a grass bag and other mowing specifications, but do not establish a side-discharge configuration. Check the exact model’s manual or ask a local STIHL dealer about the configuration sold in your region.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
