Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

$99.99

MM-AUX14 Auxiliary Battery 12V 14Ah, 22RC, 200 CCA Rechargeable AGM Car Battery

SKU: MM-AUX14 Category:
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1 Pack $ 99.99
2 Pack $ 179.99
4 Pack $ 349.99
When your vehicle’s systems demand dependable backup, the MM-AUX14 delivers. This AGM battery is engineered for real-world performance in real-world conditions.  With 200 Cold Cranking Amps and a 22-minute Reserve Capacity, it holds its own in cold starts and keeps critical systems running when the main battery is resting.
The sealed AGM design keeps it maintenance-free and spill-proof. It’s built to resist vibration and recover from deep discharges without skipping a beat. The MM-AUX14 is all about durability, consistency, and zero-nonsense power.
Whether you’re replacing a dead battery or upgrading to something that won’t quit, the MM-AUX14 is ready to go to work. No mess. No maintenance. No downtime.
This is power with purpose, and it’s ready when you are. Are you powered to the max?
Detailed Specifications: 
Voltage: 12 Volt 
Amperage: 14 AH 
Chemistry: SLA, AGM 
Battery Size: 5.93 in x 3.50 in x 5.68 in 
Weight: 10.50 Lbs 
Warranty: 3 Years 
Multi Packs Bundled Savings

1 Pack, 2 Pack, 4 Pack

Volts

12V

Amp Hour

14Ah

CCA

200

Chemistry

SLA / AGM

Quantity

1

Length

5.93

Width

3.50

Height

5.68

Weight

10.50 Lbs

Warranty

3 Year

1 review for MM-AUX14 Auxiliary Battery 12V 14Ah, 22RC, 200 CCA Rechargeable AGM Car Battery

  1. Rated 5 out of 5

    DIMITRIOS (verified owner)

    I used this Battery as upgrade to original stop and start Volvo S60 battery connection are the same only this battery little higher and support bracket is not fitting, as handy man i made new one. Battery is secure in place it is on and working great. I’m satisfy with this upgrade. Before I purchase this i went to local Interstate battery store, they had one with higher Amp, but the price was more, and original Volvo is double the price with lower Amp. Also, in the past I bought the mighty max motorcycle, size was exact, Amp was the same as Volvo, but connection is different, now I decide to go with this one price wise is double then the motorcycle, but I think wort it.

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Excellent
Mighty Max Battery
Based on 3474 reviews
Arrived quickly. Even got a sticker with it.
Solid looking battery, came well packaged. Have used their battery before for my lawnmower and now looking forward to see how it lasts in my snowmobile.
I can't believe it less than 48hrs since I ordered from Walmart and it's in the machine. What more can I say except great price.
Thanks Larry
Item as described and perfect fit and arrived on time
Battery arrived in a good shape package strait to my door steps
Arrived just in time to power my generator here in the cold Maine winters. Excellent service!
Arrived quickly from WALMART.COM. Perfect size and proper placement in my generator. Installation was easy. Generator fired right up. Battery came fully charged.
New battery. Ready for cold weather!
So far these Might Max batteries are good but it’s only the first day and they were on charge for 12 hrs. I’ll have to come back and do an update at some point in time. Ordered them on Amazon and got them the next day. I was encouraged by Mighty Max to make this google review and post pictures to extend my warranty for 3 months but there is no way to post pictures 🤣🤣🤣 It’s been a few months and I was able to go back and edit, so here is a video I made, the rest of the photos I have deleted. Batteries are still going strong. Update 12-11-2025
They arrived within 2 days of ordering them packaging was really good I haven't put them in my MX350 yet I hit them with my multi meter fresh out of the box and got 12.4v on both batteries so that is good