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The Energup 40V OP4040 6.5A lithium-ion battery is a high-capacity, reliable replacement for Ryobi 40V power tool batteries. Compatible with a broad range of Ryobi 40V tools and chargers (excluding OP408VNM), it features an LED battery life indicator and advanced safety certifications. Designed for extended runtime and durability, it comes with a 45-day money-back guarantee and 13-month warranty, making it the smart choice for professionals and DIY enthusiasts alike.





A**R
Very good alternative
No issues at all! Lasts maybe 90% as long oem equivalent. The charger also charges oem.
D**Y
No issues fitting on to ryobi charger and tool
To early to determine battery life but appears to be manufactured with excellent quality. Would order replacement batteries from them again
S**E
good replacement
My Ryobi leaf blower abruptly died and I found a direct replacement was crazy expensive. This one works fine. I had a little trouble ejecting the battery from the tool is my only gripe.
C**R
Great choice at half the price of Ryobi
Dismayed that your Ryobi batteries either won't charge up fully, or only last through half the job? This battery is a great option at almost half the price. They charge right up in the charger you already have, and I had forgotten what it was like to complete my yard work with some charge left over. They are hard plastic, so no softer ends like the Ryobi batteries, but that would only affect gripping during installing/removing if your hands are sweaty. Battery seems to have plenty of juice, as I said, and lasted through all of the trimming and blowing. Even had enough juice left over to blow off my neighbor's walk and driveway. If you are suffering using old and finicky 40v batteries, do yourself a huge favor and buy some of these. The manufacturers batteries are way overpriced. Highly recommend these.
B**R
Battery charger
FYI - This Does not charge a real ryobi battery. When asked how the product was doing and I explained the issue & I just received a “OK” message. I will be returning
E**.
Worth it!
Very good alternative to buying OE ryobi batteries. Bought them for the 40v 2000psi pressure washer and I was able to wash two cars and only one bar went down on each battery. Would highly recommend.
A**R
Great sub at lower price
I bought this as an alternative to spending way more for the original battery. It went right on the charger, working great, no issues connecting with the chain saw.
D**W
You get what you pay for
I have a Ryobi 5ah battery that’s 3 years old that lasts longer than this new 6.5ah. I can’t even mow my lawn without this battery dying. It’s cheap, it works, but keep that in mind when buying it.
Trustpilot
2 months ago
1 week ago