Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this battery for exceptional power and long-lasting performance, with many reporting all-day runtime on demanding tools like grinders and rotary hammers. The rapid 30-40 minute charge time and intelligent circuitry impressing users, while the LED status indicator helps plan work efficiently. The stacked lithium design consistently outperforms competitors and older models. Most appreciate the durable build and reliable performance under heavy loads. A few mention the weight as slightly heavy for drills and note storage concerns, though most agree performance justifies any trade-offs. Overall, customers consider this a game-changing investment for professional and heavy-duty work.
Customer review summary generated by AI, including incentivized reviews.Flex
Would RecommendFlex tools are pricey but worth the money. We haven't had any issues with ours and they do everything we need them to do
Batteries very poor
Would Not Recommendvery poor batteries.leak and will not charge.0ut of 10 batteries 2 charge.and only 2 not leaking every where
Warranty honored by Flex
Would RecommendThe first batteries I bought did not last but Flex honored the lifetime warranty and replaced them. The new ones seem to be doing good.
From flexpowertools.com
Super power, long lasting
I have used the non-stacked and was pretty happy, that is until I tried the battery. I'll be going stacked in the future.
From flexpowertools.com
High output
Would RecommendHefty sized battery with the weight of a smaller cell powered battery with very high watt output
From flexpowertools.com
Perfect Balance, Perfect Size!
Would RecommendThis is the perfect size for most extended jobs! The stacked lithium keep even FLEX’s largest tools purring!
From flexpowertools.com
Disappointed
Would Not RecommendBattery already failed didnt last 4 months not used very much at all
From flexpowertools.com
Hello there! We appreciate your review of the FX0331-1. From what you're describing it doesn't sound like your tool is meeting our standard of quality... Read More
Good charge
Would RecommendHolds a long charge enough to work for 2 work days.
From flexpowertools.com
Hello, Dylan! Thank you for reviewing our 24V 6.0Ah Stacked Lithium Battery. We're glad to hear it's been working well for your jobs! We appreciate yo... Read More
Hello there! We appreciate you taking the time to leave a review for the FLEX Batteries. Please send FLEX a direct message on Facebook, Instagram, or... Read More