The Ryobi RY40HPLM08K brings the CROSS CUT multi-blade system to the compact 20 in. 40V HP self-propelled mower platform. A toggle on the deck lets you switch between 1-blade and 2-blade modes, so you can run single-blade for light maintenance cuts and engage both blades for thicker grass or when maximum bagging efficiency is needed. Ryobi claims a 75% improvement in bagging capacity in 2-blade mode. A single 8.0 Ah 40V HP battery delivers approximately 55 minutes of runtime. Variable-speed rear-wheel drive self-propulsion pairs with the 20 in. deck for a maneuverable yet capable package suited to small-to-mid yards. Seven cutting height positions span 1.5–4 in. and the mower supports bag, mulch, and side-discharge modes.
What is the switchable blade feature on the RY40HPLM08K?
The RY40HPLM08K includes a deck-mounted toggle that lets you choose between 1-blade and 2-blade cutting modes. Use single-blade mode for routine cuts on thinner grass to conserve battery, and switch to 2-blade CROSS CUT mode for thicker growth or when you want finer clipping shredding and maximum bagging efficiency.
How many cuts or minutes of runtime does the 8.0 Ah battery provide?
Ryobi rates approximately 55 minutes of runtime with the included 8.0 Ah 40V HP battery. Running in 2-blade mode will draw more power and may reduce that figure slightly depending on grass thickness.
Does the CROSS CUT system improve bagging efficiency on the 20 in. deck?
Yes. In 2-blade mode, CROSS CUT shreds clippings more finely, and Ryobi claims approximately 75% improvement in bagging efficiency compared to a single-blade setup. This reduces the frequency of stopping to empty the grass bag.
How does the RY40HPLM08K compare to the standard 20 in. self-propelled RY40HPLM07K?
The RY40HPLM08K adds the switchable CROSS CUT multi-blade system and ships with a larger 8.0 Ah battery vs. 6.0 Ah, providing roughly 55 min vs. 45 min of runtime. It also adds mulch and side-discharge support. The RY40HPLM07K is the more affordable bagging-focused option.
Is the 20 in. multi-blade model available in a 21 in. size?
Yes. The RY40HPLM02K2 is the 21 in. rear-wheel drive multi-blade kit, and the RY40HPLM03K2 is the 21 in. AWD multi-blade kit. Both use the same CROSS CUT system but with a wider deck and dual 6.0 Ah batteries instead of a single 8.0 Ah pack.
# Ryobi 40V HP Brushless 20 in. Multi-Blade Self-Propelled Lawn Mower Kit (8.0 Ah) **Model:** `RY40HPLM08K` **Brand:** Ryobi **Category:** Lawn Mower > The Ryobi RY40HPLM08K brings the CROSS CUT multi-blade system to the compact 20 in. 40V HP self-propelled mower platform. A toggle on the deck lets you switch between 1-blade and 2-blade modes, so you can run single-blade for light maintenance cuts and engage both blades for thicker grass or when maximum bagging efficiency is needed. Ryobi claims a 75% improvement in bagging capacity in 2-blade mode. A single 8.0 Ah 40V HP battery delivers approximately 55 minutes of runtime. Variable-speed rear-wheel drive self-propulsion pairs with the 20 in. deck for a maneuverable yet capable package suited to small-to-mid yards. Seven cutting height positions span 1.5–4 in. and the mower supports bag, mulch, and side-discharge modes. ## Specifications | Attribute | Value | |---|---| | Voltage (V) | 40 | | Platform | 40V HP | | Cordless / Corded | Cordless | | Motor Type | Brushless | | Deck Width In | 20 | | Drive Type | Self-Propelled (Variable Speed Rear-Wheel) | | Cutting Height Positions | 7 | | Cutting Height Range In | 1.5–4 | | Cutting Functions | Bag / Mulch / Side Discharge | | Blade System | CROSS CUT Multi-Blade (switchable 1- or 2-blade modes) | | Gas Equivalent Cc | 150 | | Tool Only | No | | Batteries Included | 1 | | Battery Ah | 8 | | Battery Included | Yes | | Charger Included | Yes | | Warranty | 3-year limited | ## What's Included - (1) 40V HP Brushless 20 in. Multi-Blade Self-Propelled Mower - (1) 40V HP 8.0 Ah Lithium-Ion Battery - (1) 40V Charger - (1) Grass Bag Source: https://www.jaspecs.com/ryobi/lawn-mower/ry40hplm08k-ryobi-40v-hp-brushless-20-in-multi-blade-self-propelled-mower-kit/