MM-G31 Start and Stop Car BCI Group 31 12V 100AH, 140RC, 900 CCA, Rechargeable AGM Car battery
MM-G31 Start and Stop Car BCI Group 31 12V 100AH, 140RC, 900 CCA, Rechargeable AGM Car battery
MM-G31 Start and Stop Car BCI Group 31 12V 100AH, 140RC, 900 CCA, Rechargeable AGM Car battery
MM-G31 Start and Stop Car BCI Group 31 12V 100AH, 140RC, 900 CCA, Rechargeable AGM Car battery
MM-G31 Start and Stop Car BCI Group 31 12V 100AH, 140RC, 900 CCA, Rechargeable AGM Car battery

$229.99

MM-G31 Start and Stop Car BCI Group 31 12V 100AH, 140RC, 900 CCA, Rechargeable AGM Car battery

Availability: In stock

SKU: MM-G31 Category:
When your engine demands power, the Mighty Max MM-G31 delivers. This Group Size 31 AGM battery is engineered for real-world performance in real-world conditions. With 900 Cold Cranking Amps and a 140-minute Reserve Capacity, it delivers fast starts in freezing mornings, steady performance in scorching heat, and the kind of reliability that doesn’t flinch when the weather turns or the road gets rough.
 
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-G31 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-G31 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: 100 AH  
Chemistry: SLA, AGM  
Battery Size: 12.88 in x 6.75 in x 9.50 in  
Weight: 55.80 Lbs  
Warranty: 3 Years
Volts

12V
Amp Hour

100Ah
CCA

900
Chemistry

SLA / AGM
Terminal

Dual Terminal
Quantity

1
Length

12.88
Width

6.75
Height

9.50
Weight

55.80 Lbs
Warranty

3 Year

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Excellent
Mighty Max Battery
Based on 3639 reviews
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Henry Johnson
Battery works great thank you
john hall
Awesome quality battery
Jason Johnson
Battery works so good and charges heart.
Dan Gruber
Fast shipping from eBay on this battery. Was packed well. No damage!
Wessley K
Very easy to install works great 100% recommended their warranty is amazing. They even offer an additional three month warranty on top of the warranty they give. This is a great product. I will definitely buy again in the future.
Robert Ruth
Just put battery in my security system. Works like a dream!
Laura Bingham
Arrived quickly and in good condition.
C Guarino
My last Mighty Max lasted 5+ years in my Honda generator. Still cranked it over but was slowing down. New one starts fast, now ready for 2026 hurricane season.
Jeff Mich
So far so good. 4x 4D batteries on a pallet, ordered through Zoro tools, shipped FedEx Freight with a lift gate. all batteries arrived at 13.93 vdc. The packaging was quite nice
Bryant Enicke
The Honda generator it’s going in will be great again!

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