Ryobi 18V vs 40V Lithium-Ion Batteries: A Comprehensive Comparison Lithium Battery Zone, February 21, 2025February 21, 2025 When it comes to selecting the right battery for your cordless tools, Ryobi offers two standout options: the 18V and 40V lithium-ion batteries. Each is tailored to meet specific needs, whether you’re tackling everyday DIY projects or managing more demanding outdoor tasks. The 18V battery is known for its versatility and compatibility with over 260 tools, while the 40V battery is designed to provide the power and runtime needed for larger, high-output equipment. In this comparison, we’ll explore the key differences between the Ryobi 18V and 40V lithium-ion batteries, helping you determine which one best suits your needs. 1. Ryobi ONE+ 18V 4.0 Ah Lithium-Ion Battery The Ryobi PBP005 ONE+ 18V Lithium-Ion 4.0 Ah Battery is a great addition to the Ryobi ONE+ system, offering notable improvements over the previous 1.5Ah version. With up to three times the runtime, it’s perfect for users who need longer power for their tools. Its compact, lightweight design reduces user fatigue, and the high-visibility LED fuel gauge is a helpful feature for tracking the battery’s remaining charge. The fade-free power ensures consistent performance, even in different weather conditions. In terms of performance, the battery charges quickly and works seamlessly with over 260 Ryobi tools, which makes it versatile for a range of applications. The build quality is solid, and the quick-release latches make installation and removal a breeze. Pros and Cons Pros: Increased runtime (up to 3X compared to 1.5Ah battery). Compact and lightweight design. Compatible with over 260 Ryobi ONE+ tools. High-visibility LED fuel gauge. Fade-free power for all weather conditions. Cons: Battery life varies, with some users expecting longer duration. VIEW ON AMAZON 2. Ryobi 40V 4.0 Ah Lithium-Ion Battery The Ryobi 40V 4.0 Ah Lithium-Ion Battery OP4040 is a reliable and durable option for users of Ryobi’s 40V outdoor cordless tools. This battery offers impressive runtime and works seamlessly with over 75 Ryobi tools, including popular models like mowers, blowers, and chain saws. Compared to NiCD batteries, it’s lighter and provides longer-lasting power with fade-free performance. The on-board battery life indicator is a practical feature, giving users a clear idea of remaining power during yard work. One of the standout features of this battery is its extra cell capacity, which ensures it can handle high-demand tools without sacrificing performance. Pros and Cons Pros: Impressive 4.0Ah runtime for high-demand tools. Lighter than NiCD batteries in its class. Fade-free performance for consistent power. Works with over 75 Ryobi 40V tools. On-board battery life indicator for convenience. Cons: Mixed reviews on overall battery life. VIEW ON AMAZON Ryobi 18V vs 40V Lithium-Ion Batteries Comparison When it comes to cordless power tools and outdoor equipment, Ryobi offers two main lithium-ion battery options: the 18V and 40V. Both batteries provide reliable performance for different tasks, but there are notable differences between the two. Power and Runtime The Ryobi 18V 4.0 Ah Lithium-Ion Battery (PBP005) offers up to three times the runtime compared to its 1.5 Ah predecessor. It is perfect for light to medium-duty tools and ensures users can work longer without needing a recharge. It’s ideal for a wide range of Ryobi tools, including drills, saws, and other power tools in the Ryobi ONE+ system, which features over 260 tools. On the other hand, the Ryobi 40V 4.0 Ah Lithium-Ion Battery (OP4040) is designed for high-demand outdoor tools, such as mowers, blowers, and chain saws. This battery’s 4.0 Ah capacity allows for longer usage time, making it perfect for larger landscaping jobs. It also provides fade-free performance, ensuring the power doesn’t dip during use, which is important for more powerful equipment. Compatibility The 18V battery is compatible with over 260 Ryobi tools, making it a versatile choice for users who need different tools for a variety of tasks. If you already own tools from Ryobi’s ONE+ 18V series, this battery will seamlessly integrate into your collection. The 40V battery, in contrast, works with over 75+ Ryobi 40V tools, which include more heavy-duty outdoor equipment. It is designed to power higher-output tools that require more energy to operate efficiently. This makes the 40V battery an ideal choice for those who focus primarily on lawn care and landscaping tasks. Weight and Size The Ryobi 18V 4.0 Ah battery is compact and lightweight, making it easy to handle and less fatiguing for users working with power tools. It’s the perfect choice for tasks that require mobility and precision. Its smaller size and lighter weight make it a go-to option for users who prioritize comfort. In comparison, the 40V 4.0 Ah battery is larger and heavier, which is expected given its increased capacity and focus on heavy-duty outdoor equipment. While it’s still manageable, the added weight may be noticeable for users working with handheld tools like blowers or hedge trimmers. Performance and Durability Both batteries are designed to offer fade-free performance, ensuring that users get consistent power throughout their tasks. The 18V battery is ideal for moderate to light work, such as drilling or cutting wood, and holds up well in both warm and cold conditions. The 40V battery, on the other hand, provides a more robust and sustained power output that supports more demanding tasks. Its extra cell capacity allows it to handle power-hungry tools like mowers and chainsaws, delivering excellent performance for larger outdoor jobs. It also charges quickly and is durable, with many users reporting that it outperforms its NiCD counterparts. Conclusion In conclusion, both the Ryobi 18V and 40V lithium-ion batteries offer exceptional performance, but the right choice ultimately depends on the type of work you plan to do. The 18V battery is ideal for general power tools and smaller tasks, providing great value with its lightweight design and broad compatibility. However, if you’re looking to power more demanding outdoor tools such as mowers or chainsaws, the 40V battery delivers the sustained power and longer runtime necessary for those heavy-duty jobs. Enjoyed this guide of Ryobi 18V vs 40V Lithium-Ion Batteries? Then be sure to check out our other lithium battery guides. Best 36 Volt Lithium Trolling Motor Battery Best 48V Lithium Battery for Golf Cart Best 36V Lithium Battery for Golf Cart Best 200Ah Lithium Battery for RV Best 1000 Watt Solar Generator Other Lithium Battery batterylithium