10 Best Ryobi Battery 40v 2025 in the United States

The Ryobi 40V 4.0 Ah Lithium-Ion Battery OP4040 is an excellent choice for users seeking reliability and performance in their outdoor cordless tools. With a 4.0Ah capacity, it provides impressive runtime, allowing you to work longer without constantly needing to recharge. This battery is specifically designed for compatibility with a range of Ryobi's 40V tool models, making it a versatile option for those already invested in the Ryobi ecosystem. Many users appreciate that it is lighter and offers better performance compared to traditional NiCD batteries, which can reduce fatigue during extended use, making it a user-friendly choice.

On the downside, this battery does not come with a charger, meaning you'll need to purchase a compatible charger separately if you don't already own one. Additionally, while its weight is a strength, some users may still find it a bit heavy after prolonged use, especially compared to smaller batteries. It's worth noting that while the battery has decent durability, warranties can vary, so checking the specific terms before purchase is advisable.

The Ryobi 40V OP4040 battery is a strong option for those needing a dependable power source for their Ryobi tools, but potential buyers should be aware of its compatibility requirements and the need for a separate charger.

The Ryobi 40V 6.0 Ah Lithium-ion battery is designed to power most Ryobi 40V tools, making it a solid choice if you already own or plan to use Ryobi cordless power tools. Its 6.0 Ah capacity provides longer run time before needing a recharge compared to lower capacity batteries, which is beneficial for extended projects. At 4.24 pounds, it’s somewhat heavier, which may add weight to your tool but remains manageable.

The battery is built with lithium-ion cells known for good durability and maintaining charge over time, supported by Ryobi’s reputation for reliable power tool components. Compatibility is a strong point as it works with most Ryobi 40V tools, though it’s advisable to confirm compatibility with your specific model using Ryobi’s compatibility chart. User feedback highlights good performance and reliability, while some note the weight and charge duration as areas that could be improved.

For those who use Ryobi tools regularly and seek a battery balancing capacity and durability, this model is a dependable choice. If prioritizing lighter weight or faster charging, exploring alternative options might be beneficial.

The 2Pack 6.0Ah Replacement for Ryobi 40V Battery and OP401 Charger Kit is designed to meet the needs of users with Ryobi 40V cordless power tools. With a capacity of 6.0Ah, these batteries offer a substantial amount of power, which should support longer usage times for your tools. One of the prominent strengths of this kit is its compatibility with a wide range of Ryobi 40V tools, ensuring that it can cater to various power tool requirements.

The kit includes two batteries and a charger that can handle input voltages from 110V to 230V, making it versatile for different power sources and reducing charge time to improve efficiency. Additionally, the batteries feature an LED indicator to help you monitor charge levels easily, which is a handy feature for maintaining your workflow without unexpected interruptions. These batteries are also tested over 1000 times, signaling a high level of durability and reliability.

Safety is another major focus, with multiple protections built in to prevent overcharging, overheating, and short-circuiting. On the downside, the combined weight of the batteries and charger is 7.11 pounds, which might be on the heavier side for some users. In terms of durability and warranty, these batteries are designed to have a long life with no memory effect and minimal self-discharge, enhancing their reliability over time. This product is likely to appeal to users who have a variety of Ryobi 40V tools and are looking for a dependable power solution to keep their devices running efficiently.