StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › Stihl
STIHL
STIHL RMA 510 V 21" Deck Self Propelled Walk Behind Lawn Mower

STIHL RMA 510 V 21" Deck Self Propelled Walk Behind Lawn Mower

Best price now

$919.99at Main Street MowerChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Main Street Mower

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $919.99 at Main Street Mower on Nov 10.

Our take on the STIHL RMA 510 V 21" Deck Self Propelled Walk Behind Lawn Mower

The RMA 510 V is STIHL's first self-propelled mower in its AP 36-volt battery line. A 21-inch steel deck with a 20-inch cutting width, variable self-propel from 0.6 to 2.8 mph, seven cutting heights and a three-position handlebar make it a comfortable machine for small-to-medium suburban lawns. It runs on the AP 300 battery, rated for up to 2,583 square feet per charge, so it starts instantly, runs quiet and produces no exhaust. Against gas mowers it trades unlimited runtime for lower noise and no fuel; against other battery mowers it stands out for its steel deck and adjustable speed, but the battery and charger are sold separately or as a set, and large lawns will need a second battery.

Best forSuburban homeowners with small-to-medium lawnsBuyers already in the STIHL AP battery systemAnyone who wants self-propel with adjustable speedNeighbors who value quiet, emission-free mowing
Pros
  • Self-propel with variable speed from 0.6 to 2.8 mph
  • 21-inch steel deck with a 20-inch cutting width
  • Seven cutting heights for fine-tuning the cut
  • Instant start, low noise and no exhaust fumes
  • Three-position handlebar and 10-inch rear wheels for rough ground
Cons
  • Battery and charger sold separately or as a set
  • Rated runtime covers only about 2,583 square feet per charge
  • Steel deck and battery make it heavier than basic push mowers
  • Large lawns will need spare batteries or a gas mower

STIHL RMA 510 V 21" Deck Self Propelled Walk Behind Lawn Mower prices at every store

  • Main Street MowerNew

    In stockReturn policy

    $919.99Checked Nov 10
    Visit Main Street Mower

About the STIHL RMA 510 V 21" Deck Self Propelled Walk Behind Lawn Mower

The STIHL RMA 510 V is a battery-powered, self-propelled walk-behind lawn mower and the first self-propelled mower in the STIHL AP battery series. It has a 21-inch steel mowing deck with a 20-inch cutting width, sized to cover small-to-medium yards. The steel deck is more durable than a plastic alternative.

Squeezing a lever engages the self-propel function, which has variable speed control from 0.6 mph to 2.8 mph. The deck adjusts to seven cutting heights, and the handlebar adjusts to three height positions. The 10-inch rear wheels and 8-inch front ball-bearing wheels let it mow over rough terrain.

The mower runs on a 36-volt STIHL AP 300 lithium-ion battery. It starts instantly with a push button and a pull of the switch lever, runs quietly, and produces no exhaust emissions or gasoline costs. Power does not drop gradually, so it works at full speed until the battery is depleted. A locking key prevents accidental motor starts. The mower can be stored in three positions: folded or unfolded on all four wheels, or upright and folded in the cleaning position with the blades facing the wall.

Deck
21-inch steel
Cutting width
20 inches
Drive
Self-propelled, variable speed from 0.6 mph to 2.8 mph
Cutting heights
7 positions
Handlebar
3 height positions
Wheels
10-inch rear, 8-inch front ball-bearing
Battery
36-volt STIHL AP 300 lithium-ion
Run time
Up to 2,583 square feet per charge; varies with battery type, charge level and capacity, model, operating style and conditions
Starting
Push button and pull switch lever; locking key prevents accidental starting
Storage
3 positions: folded or unfolded on four wheels, or upright and folded
Battery and charger
Available separately or as a set with the tool

Questions and answers

How long does the RMA 510 V run on one charge?
STIHL rates it at up to 2,583 square feet with the AP 300 battery. Runtime varies with battery type, charge level, grass conditions and mowing style.
Does it come with a battery and charger?
They can be bought separately or as a combined set with the tool. Check which configuration you are ordering.
How fast is the self-propel?
A lever engages the drive, and a variable speed control sets the pace between 0.6 and 2.8 mph.
What cutting width and deck does it have?
It has a 21-inch steel deck with a 20-inch cutting width, adjustable to seven cutting heights.
Is it good for large lawns?
It is aimed at small-to-medium yards. On larger lawns expect to swap or recharge batteries mid-job.
Which battery system does it use?
It runs on STIHL's 36-volt AP series batteries, so it shares packs with other AP tools.
Where is the STIHL RMA 510 V 21" Deck Self Propelled Walk Behind Lawn Mower cheapest?
At Main Street Mower, for $919.99, as of our latest check.

More from Stihl

  • S
    Stihl BG 86 C-E Gas Leaf Blower
    Stihl BG 86 C-E Gas Leaf Blower
  • S
    Stihl BR 800 X Backpack Leaf Blower
    Stihl BR 800 X Backpack Leaf Blower
  • S
    STIHL BGE71 Electric Blower
    STIHL BGE71 Electric Blower
  • S
    Stihl BG 86 C-E Gas-Powered Handheld Blower
    Stihl BG 86 C-E Gas-Powered Handheld Blower
  • S
    Stihl GTA 26 Battery Garden Pruner
    Stihl GTA 26 Battery Garden Pruner
  • S
    Stihl GTA 26 Battery Garden Pruner Set
    Stihl GTA 26 Battery Garden Pruner Set
  • S
    Stihl BGA 300 Cordless Backpack Blower
    Stihl BGA 300 Cordless Backpack Blower
  • S
    Stihl Electric Pressure Washer
    Stihl Electric Pressure Washer
  • All Stihl deals and products →

    More battery-powered lawn mowers

    • H
      Honda Original Equipment 21" Variable Speed Battery Powered Walk Behind Mower HRNBVKA4
      Honda Original Equipment 21" Variable Speed Battery Powered Walk Behind Mower HRNBVKA4