Ryobi 40V Battery Compatibility

Ryobi’s 40V platform is designed for outdoor power equipment — mowers, chainsaws, blowers, trimmers, and snow blowers. With over 85 tools in the system, it’s one of the largest cordless outdoor ranges available. The 40V line is exclusive to The Home Depot in the US and sits alongside (but is separate from) the Ryobi ONE+ 18V system.

TL;DR

• Ryobi 40V batteries power 85+ outdoor tools — mowers, trimmers, blowers, chainsaws, snow blowers, and more.
• 40V and 40V HP batteries are cross-compatible — any 40V battery works in any 40V tool.
• 40V HP (High Performance) batteries deliver extra power and runtime in HP-designated tools, but also work in standard 40V tools.
• Important: Ryobi changed the physical shape of some newer 40V batteries. Certain taller batteries (6 Ah and above) may not fit in older tools with moulded battery compartments.
• 40V batteries are not compatible with Ryobi ONE+ 18V tools — completely different platforms.
• Exclusively sold at The Home Depot (US).

Compatibility Rules

Ryobi states that any 40V lithium-ion battery can power any tool in the 40V platform. This includes both standard 40V and 40V HP batteries — they share the same slide-on connector. HP batteries simply deliver higher sustained power output, which HP-branded tools are engineered to take advantage of.

The battery shape issue: In recent years, Ryobi redesigned the casing on some 40V batteries (particularly 6 Ah and larger units). These newer batteries are taller (approximately 4.5 inches) and may not physically fit into older 40V tools that have a moulded battery compartment enclosing the top of the battery. If you own older 40V tools, check the battery dimensions before buying a newer high-capacity pack. Lower-capacity batteries (2 Ah, 4 Ah) in the current design generally still fit older tools.

What It Is NOT Compatible With

Platform	Compatible?	Notes
All Ryobi 40V tools	✅ Yes	Universal fit across 85+ outdoor tools
Ryobi 40V HP tools	✅ Yes	Standard 40V batteries work; HP batteries unlock full performance
Ryobi ONE+ 18V tools	❌ No	Completely different voltage and connector
Other brands (DeWalt, Makita, Milwaukee, EGO)	❌ No	No cross-brand compatibility
Older Ryobi 40V tools (with some new batteries)	⚠️ Check	Newer tall-format 6 Ah+ batteries may not fit older moulded compartments

Available Batteries

Ryobi’s 40V batteries come in standard and HP variants across a wide range of capacities:

Standard 40V Batteries

Model	Capacity	Energy	Best For
OP40201	2.0 Ah	72 Wh	Light-duty — trimmers, edgers, small blowers
OP4030 / OP40301	3.0 Ah	108 Wh	Medium-duty — hedge trimmers, string trimmers
OP4040 / OP40404	4.0 Ah	144 Wh	General outdoor use — most tools
OP4050 / OP40501	5.0 Ah	180 Wh	Extended runtime — mowers, chainsaws
OP40602	6.0 Ah	216 Wh	Maximum runtime — large mowers, snow blowers (taller battery)

40V HP (High Performance) Batteries

Model	Capacity	Energy	Best For
OP40404 (HP)	4.0 Ah	144 Wh	HP tools — delivers higher sustained discharge
OP4050A (HP)	5.0 Ah	180 Wh	HP mowers and chainsaws — full performance ceiling
OP40602 (HP)	6.0 Ah	216 Wh	Maximum HP performance — taller form factor

Charger Notes

Ryobi 40V chargers are compatible with all 40V batteries (standard and HP). They are not interchangeable with ONE+ 18V chargers.

Charger Model	Type	Charge Time (4 Ah)	Notes
OP404	Standard charger	~120 minutes	Included with most kits
OP401 / OP406A	Rapid charger	~60 minutes	Faster charging for all 40V batteries
OP408A	Super charger	~45 minutes	Fastest available, sold separately

Compatible Tools List

The Ryobi 40V system focuses on outdoor power equipment. Below are the most popular tools by category.

Lawn Mowers

Model	Tool	Key Spec
RY401170	21 in. Self-Propelled Mower	Brushless motor, 7-position height adjust
RY401180	21 in. HP Brushless CrossCut Mower	Dual-blade crosscut system
RY40108	20 in. Push Mower	Budget-friendly, 5-position height
RY40580	30 in. Riding Mower	Up to 2.5 acres per charge (3 batteries)
RY401200	21 in. HP Self-Propelled Mower	CrossCut dual-blade, rear-wheel drive

String Trimmers & Edgers

Model	Tool	Key Spec
RY40250	15 in. String Trimmer	Attachment capable, bump-feed head
RY40290	Carbon Fibre Shaft String Trimmer	Lightweight, reduced vibration
RY40506	Expand-It Trimmer Power Head	Compatible with Expand-It universal attachments
RY40560	Edger Attachment	Pairs with Expand-It power head

Blowers

Model	Tool	Key Spec
RY40408	125 MPH Leaf Blower	550 CFM, variable speed trigger
RY40470	Whisper Series Blower	59 dB — designed for noise-restricted areas
RY404150	HP Brushless Backpack Blower	730 CFM, backpack harness for extended use

Chainsaws

Model	Tool	Key Spec
RY40530	14 in. Chainsaw	Tool-free chain tensioning
RY40550	HP Brushless 18 in. Chainsaw	Gas-like cutting speed
RY40570	10 in. Pole Saw	9 ft. reach, auto-oiler

Hedge Trimmers

Model	Tool	Key Spec
RY40620	24 in. Hedge Trimmer	3/4 in. cut capacity, dual-action blades
RY40640	26 in. HP Brushless Hedge Trimmer	1 in. cut capacity

Snow Blowers & Winter

Model	Tool	Key Spec
RY40806	21 in. Snow Blower	Brushless motor, clears up to 10 in. depth
RY40860	HP Brushless 24 in. 2-Stage Snow Blower	Steel auger, up to 50 ft. throw distance

Other Outdoor Tools

Model	Tool	Key Spec
RY40850	Pressure Washer	1,500 PSI, portable
RY40480	Backpack Chemical Sprayer	4-gallon tank
RY40460	Cultivator	4 tines, 8 in. tilling width
RY40770	Power Inverter	1,800W, powers mains appliances

This is a representative selection. Ryobi’s full 40V catalogue includes 85+ tools. Visit ryobitools.com for the complete current lineup.

Sources

• Ryobi Tools — 40V Collection
• The Home Depot — Ryobi 40V Tools
• Toolboy’s Corner — Ryobi 40V Batteries Reference

Frequently Asked Questions

Related Guides

• Ryobi ONE+ 18V Battery Compatibility
• Which Ryobi ONE+ Battery Should You Buy?
• Can You Use Ryobi Batteries in Other Tools?
• Ryobi P107 Replacement Battery Guide
• Ryobi P197 Replacement Battery Guide
• Power Tool Battery Warranty Guide by Brand
• Power Tool Battery Glossary: Ah, V, Wh Explained