Kobalt 40V vs Ryobi 40V
Kobalt 40V and Ryobi 40V batteries don't swap: we have no source saying either pack runs the other's tools. Kobalt 40V: 7 battery packs (2–8 Ah) and 8 garden tools listed. Ryobi 40V: 9 battery packs (2–12 Ah) and 49 garden tools listed. Widest mower: 21 in against 21 in. Strongest blower: 600 CFM against 850 CFM. Widest string trimmer: 15 in against 17 in.
At a glance
Counts are what this catalogue lists so far, not each brand's whole range.
Do the batteries swap?
No. We have no source saying a Kobalt 40V pack runs Ryobi 40V tools, or the other way round. Owning both means two sets of batteries and chargers, so choosing between them is choosing which tools you'll keep buying.
Which batteries work with Kobalt 40V · Which batteries work with Ryobi 40V
Tool by tool
Each platform's products of a kind, biggest first by the spec that matters most for it. A dash means the brand publishes no figure we have read yet.
Batteries 7 vs 9
Kobalt 40V
- 8.0Ah Battery 8 Ah
- 6.0Ah Battery 6 Ah
- 5.0Ah Battery 5 Ah
- 4.0Ah Battery 4 Ah
- 3.0Ah Battery 3 Ah
- 2.5Ah Battery 2.5 Ah
- 2.0Ah Battery 2 Ah
Ryobi 40V
- 12.0Ah Battery 12 Ah · $359.00
- 8.0Ah Battery 8 Ah · $259.00
- HP Edge 8.0Ah Battery 8 Ah · $329.00
- 6.0Ah Battery 6 Ah · $219.00
- 5.0Ah Battery 5 Ah · $134.83
- 4.0Ah Battery 4 Ah · $159.00
- 4Ah HIGH PERFORMANCE EDGE Battery 4 Ah · $229.00
- 2.6Ah Battery 2.6 Ah
- 2.0Ah Battery 2 Ah · $139.00
Lawn mowers 3 vs 10
Kobalt 40V
- 21 in Self-Propelled Mower 21 in · self-propelled
- 20 in Brushless Push Mower 20 in
- 19 in Brushless Push Mower 19 in
Ryobi 40V
- HP Brushless 21 in Self-Propelled Mower 21 in · self-propelled · $449.00
- HP Brushless 21 in Self-Propelled AWD Multi-Blade Mower 21 in · self-propelled
- HP Brushless 21 in Self-Propelled Multi-Blade Mower 21 in · self-propelled
- HP Brushless 21 in Multi-Blade Push Mower 21 in · push
- HP Brushless 21 in Push Mower 21 in · push
- HP Brushless 20 in Self-Propelled Mower 21 in · $379.00
- HP Brushless 20 in Push Mower 20 in · $279.00
- HP Brushless 20 in Push Mower 20 in · $249.00
- HP Brushless 20 in Self-Propelled Lawn Mower 20 in · $349.00
- 18 in 2-in-1 Push Mower 18 in · $219.00
String trimmers 1 vs 7
Kobalt 40V
Ryobi 40V
- HP Brushless 17 in Attachment Capable String Trimmer 17 in · brushless motor · $189.00
- HP Brushless 17 in String Trimmer 17 in · brushless motor · $239.00
- HP Brushless 16 in Carbon Fiber Shaft String Trimmer 16 in · brushless motor · $219.00
- HP Brushless 15 in Carbon Fiber Attachment Capable String Trimmer 15 in · brushless motor
- HP Brushless Brush Cutter/String Trimmer 15 in · brushless motor · $389.00
- 15 in Attachment Capable String Trimmer 15 in · $119.00
- 12 in String Trimmer 12 in · $96.19
Leaf blowers 3 vs 11
Kobalt 40V
- 600 CFM Blower 600 CFM · 130 MPH
- Gen4 520 CFM Brushless Blower 520 CFM · 120 MPH
- 480 CFM Blower 480 CFM · 110 MPH
Ryobi 40V
- HP Brushless 850 CFM Backpack Blower 850 CFM · 180 MPH · $349.00
- HP Brushless 800 CFM WHISPER SERIES Blower 800 CFM · 180 MPH · $219.00
- HP Brushless WHISPER SERIES 730 CFM Jet Fan Blower 730 CFM · 190 MPH · $229.00
- HP Brushless 650 CFM WHISPER SERIES Blower 650 CFM · 160 MPH · $209.00
- Brushless 625 CFM WHISPER SERIES Backpack Blower 625 CFM · 145 MPH
- HP Brushless 600 CFM WHISPER SERIES Blower 600 CFM · 155 MPH
- HP Brushless 600 CFM Blower/Vacuum 600 CFM · 80 MPH · $369.00
- 550 CFM Blower 550 CFM · 120 MPH · $119.00
- 475 CFM Blower 475 CFM · 120 MPH · $109.00
- 450 CFM Blower 450 CFM · 120 MPH · $99.00
- 300 CFM Jet Fan Leaf Blower 300 CFM · 155 MPH · $94.97
Chainsaws 1 vs 8
Kobalt 40V
Ryobi 40V
- HP Brushless 20 in Chainsaw 20 in · $349.00
- HP Brushless 20 in Chainsaw 20 in · $379.00
- HP Brushless 18 in Chainsaw 18 in · $279.00
- Brushless 16 in Chainsaw 16 in · $231.51
- HP Brushless 16 in Chainsaw 16 in · $219.00
- HP Brushless 14 in Chainsaw 14 in · $198.08
- HP Brushless 12 in Top Handle Chainsaw 12 in · $199.00
- 10 in Chainsaw 10 in · $145.00
Only one of them is listed with
- Ryobi 40V only: hedge trimmers, pole saws, snow blowers, other yard tools.
Not listed here doesn't mean the brand doesn't make one; the catalogue is still growing.
Ryobi 40V: packs that don't fit every tool
- 6.0Ah 40V pack with some lawn mowers whose battery bay is too small: does not fit. walmart.com ↗ (retailer, not the brand's own word; read Oct 8, 2026)
Questions
Do Kobalt 40V batteries work with Ryobi 40V tools?
No. We have no source saying a Kobalt 40V battery runs Ryobi 40V tools, or the other way round, so owning both means two sets of packs and chargers.
Which has more garden tools, Kobalt 40V or Ryobi 40V?
In this catalogue so far: 8 for Kobalt 40V and 49 for Ryobi 40V. Both brands may make more than are listed yet.
Which has the bigger battery, Kobalt 40V or Ryobi 40V?
By the brands' amp-hour figures, the largest Kobalt 40V pack listed is 8 Ah and the largest Ryobi 40V pack is 12 Ah. Amp-hours only compare fairly at the same voltage (40 V against 40 V); watt-hours, where the brand states them, are on each battery's page.
Which makes the wider mower, Kobalt 40V or Ryobi 40V?
By the brands' own figures: 21 in for Kobalt 40V (21 in Self-Propelled Mower) and 21 in for Ryobi 40V (HP Brushless 21 in Self-Propelled Mower).
Which has the stronger leaf blower, Kobalt 40V or Ryobi 40V?
By the brands' own figures: 600 CFM for Kobalt 40V (600 CFM Blower) and 850 CFM for Ryobi 40V (HP Brushless 850 CFM Backpack Blower).
Which has the wider string trimmer, Kobalt 40V or Ryobi 40V?
By the brands' own figures: 15 in for Kobalt 40V (Gen4 15 in String Trimmer) and 17 in for Ryobi 40V (HP Brushless 17 in Attachment Capable String Trimmer).
Which has the longer warranty, Kobalt 40V or Ryobi 40V?
The longest tool warranty we have read is 5 years for Kobalt 40V and 5 years for Ryobi 40V. Batteries often carry a shorter one; check each product's page.
Answered from the catalogue data, as of October 29, 2026. How we compare.