Pros

    Cons

    • โ€ข30% of reviews mentioned that the batteries are defective.
    • โ€ข20% of reviews noted that the battery life doesn't last long.
    • โ€ข10% mentioned that it has a very short life span.
    • โ€ข10% also noted that it takes a long time to charge.

    Bottom Line

    The Ryobi 40V 4.0 Ah Lithium-Ion Battery OP4040 has faced criticism for its reliability and longevity, with users frequently reporting defective units and a disappointing battery lifespan. Despite the battery working well with all Ryobi 40V tools and delivering fade-free power, potential buyers should be aware of these concerns and consider these alongside its compatibility benefits.

    Lowest at any Popular Retailer
    $86.00 at Amazon

    Where to Buy

    Prices last updated: August 1st 2025 5:59 pm
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