Stihl RMA 510 Battery Mower

Stihl RMA 510 Battery Mower Review

The Stihl RMA 510 V battery mower is built to the same high standards as the rest of the Stihl lineup. That means you’ll receive a lot of power, it’ll last a long time, and it’ll be easy to use. They crammed two battery bays into this computer, turning it into a workhorse that will keep working as long as you keep replacing the batteries.

As seen by its now-legendary chainsaws, Stihl is notorious for cramming a lot of power into small packages. The 3,000-rpm created by the 20-inch blade in this incredibly powerful and long-lasting mower pays homage to the famous manufacturer’s history.

This item comes with a fantastic three-year limited warranty that proves how well-made it is and how long it will last. Is it, however, beneficial in all situations, or is it limited to simply mid-duty jobs? Let’s look into the stand out features of the mower and how well it performed in our standard test criteria.

Features of the Stihl RMA 510

  • 66lbs in weight
  • 36-volt system
  • 20-inch cut area

Stihl RMA 510 Battery Mower



The Stihl RMA 510 V is designed in such a manner that the entire motor is practically entirely above the deck. This means the section housing is a little taller than on some mowers, but it looks excellent and makes no difference in terms of storage. It protects all of the vital components from moisture, filth, and, most critically, collisions. This is a long-lasting piece.

Controls and Performance

The steel deck housing a 20-inch blade with optional mulching mode (not quite as broad as the Ryobi 40V 21-inch Brushless Smart Trek(opens in new tab) or EGO Power+ 21-inch LM2102(opens in new tab)). Many of the components seem sturdy and well-made. The grass may either be caught in the 19.8 gallon catcher bag or discharged through the side discharge chute.

Because this is a battery-powered device, noise levels may be reduced to a minimum. Of course, with a blade rotating at up to slightly over 3,000 rpm, noise is inevitable; however, because to the clever design and well-built motor system, it is reduced to a minimum. The noise level of 80 dB is quite low. However, it makes a lot less obnoxious noise than a gas mower, making it significantly more suitable for use during unsociable hours such as late at night or early in the morning. This is ideal if you live in a region where dry grass is uncommon and you only need to cut when the weather permits. However, this device can manage damp grass; however, battery life will be reduced slightly.

A single point lever makes height adjustment simple. This enables you to adjust the mower deck from 1.5 to 4 inches, with seven places to choose from in between.

The handle is also adjustable, with three different positions to assist most people find a comfortable height. This also folds over, making the mower much smaller and allowing it to stand upright for more convenient storage.

Stihl RMA 510 Battery Mower

Ease of Riding

A simple push button start is combined with a pull handle for further safety. This is also the lever you press to activate the self-driven pull. The speed ranges from 0.6 to 2.8 mph, which is sufficient for most chores.

The mower isn’t light, but it’s also not hefty. It strikes a good mix between being light enough to transport and store while yet being hefty enough to push through bumps and clumps on the lawn for a strong finish that leaves fantastic lines in the grass owing to its chunky wheels.

Everything is very simple with single touch mechanisms that feel powerful yet are easy to operate, from removing the grass bag and batteries to folding the handle and changing the height.

Sure, the price of this mower is exorbitant, but after just a few minutes of using it, you’ll understand why.

Runtime and Cutting Area

The Stihl RMA 510 V has two battery bays, allowing you to have twice the life or charge one while the other or two are in use. These are intended to operate at full power until the battery dies, so there is no point near the end of the battery’s life when the power output drops.

But how does that translate into practice? If you walk at a steady 2.5 mph, you should be able to mow 17,600 square feet on a single charge. On a charge, this equates to 2/5 of an acre. Keep in mind that this is an ideal circumstance, and we all lose 5–10% of our productivity when cutting lines overlap.

Not that battery life is a big deal when you have multiple batteries, use the dual bay, and take advantage of the one-hour quick charging period to keep going no matter how big or demanding the project gets.


The Stihl RMA 510 V has a battery compartment that may hold a variety of battery sizes, however the bigger AP 300 cells are recommended. One of these will provide you 45 minutes of cutting time on a single charge. Naturally, it depends on the task at hand, with longer or wetter grass consuming more battery life. However, you may discover that maintaining a lawn on a daily basis takes closer to an hour. On a single charge, expect to cover roughly 2,500 square feet.

Stihl RMA 510 Battery Mower

Final Verdict: Should I buy the Stihl RMA 510?

This is the mower for you if you want a mid-duty battery mower that will last a long time, has adequate power for most applications, and is really easy to operate. The fact that this device comes with a fair warranty and outstanding build quality adds to the peace of mind it provides.

There are battery mowers with more voltage and torque available; however, they will be heavier and less maneuverable.

If you insist on a gas mower, see our roundup of the best gas lawn mowers (opens in new tab), and those with large lawns should check out our guide to the best riding lawn mowers (opens in new tab).


How long does a STIHL lawn mower battery last?

The AK 20 battery, according to Stihl, can operate for 29 minutes. This equates to around 2,475 square feet. The Stihl RMA 460 is said to be capable of 44 minutes of operation per charge on the Ak 30 battery, which equates to around 3,440 square feet.

Why is my electric lawn mower not cutting?

If your mower has a corded motor, ensure sure the connection between the cord and the mower is secure. Also, inspect the prongs for any bent or broken components. If everything appears to be in order, examine sure the circuit breaker on the mower isn’t tripped.

How long does a cordless lawn mower last?

A battery-powered lawn mower’s motor will need to be changed after roughly five years on average.