Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
Reliable Backup Power: This 12V 14Ah AGM battery delivers dependable performance in any weather and supports critical systems when the engine is off. | Made to Last: With its 20-minute Reserve Capacity supports longer run times and a longer overall battery lifespan. | All Power, No Mess AGM Design: Sealed and spill-proof, the MM-AUX14 is built with high discharge output and deep discharge recovery to keep power steady when it counts. | Strength That Starts on the Inside: The rugged construction resists shock, vibration, and harsh conditions, delivering reliable performance across a wide range of temperatures and tough environments. | Tested Tough & Certified Safe: Mighty Max batteries are built in an ISO-certified facility and meet CE standards for quality, safety, and reliability. | Rechargeable and Versatile: Mounts in multiple positions (excluding upside down) for flexible vehicle installation. | Dimensions: Sized at 5.93 x 3.50 x 5.68 inches, ready to fit your ride with ease. Polarity is easy to spot, with the positive terminal on the left and the negative on the right. | Included: Each battery includes mounting screws for quick, hassle-free installation. | Not Included: Wire harness and mounting accessories are not included. | 3 Year Warranty: Mighty Max strength, long-haul protection, and confidence that you
I ordered the Mighty Max 12V battery mainly for its reliability, and it does work well. But I was surprised by the actual color—it looks different in person than on the site. Not a huge deal, but still a bit disappointing. Function-wise, it does its job!
S
Sofia Kim
Great compact battery for my car
The Mighty Max Battery MM-AUX14 is just the perfect size for my car. It’s 12V and 14Ah, so it holds its charge really well! I love that it's AGM technology, which means it's maintenance-free. Highly recommend it for anyone needing a reliable auxiliary battery.
J
Jorge Montoya
Solid performance but delivery was slow
I got the Mighty Max battery recently and it performs pretty well—200 CCA is no joke! However, shipping took a bit longer than I expected, which was frustrating. The battery itself is working great, just wish the delivery could have been faster.
R
Ravi Singh
Perfect for my RV needs!
I purchased the Mighty Max Auxiliary Battery for my RV, and it’s been a lifesaver. The 14Ah capacity is enough for my needs, and it recharges quickly. The AGM design means I don’t have to worry about spills or maintenance, which is a relief while camping.
F
Fatima Al-Mansur
Had issues but customer service helped
I was excited to try the Mighty Max battery, but it stopped working after a few weeks. I reached out to customer service and they were really helpful. They guided me through troubleshooting, and I think I might’ve just had a bad one. Not sure if I'll buy again though.
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FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
