$229.99

MM-H5LI Lithium Car Battery LiFePO4 12.8V Automotive Start-Stop Compatible Replacement 700CCA 62 RC 27Ah Group 47 Built-in BMS, Lightweight, Long Cycle Life

Availability: In stock

SKU: MM-H5LI Category:
The smart lithium upgrade for everyday vehicles is here. When your engine demands performance, the Mighty Max MM-H5 Li delivers without hesitation. 
This Group Size 47 lithium battery stands ready with dependable starting power for the conditions drivers face every day. With 12.8V, 27Ah, 700 Cold Cranking Amps, and a 62-minute Reserve Capacity, it provides strong starts and the endurance to support your vehicle’s electrical demands. It’s built for strong starts on freezing mornings, dependable performance in extreme temperatures, and the kind of power that keeps up with modern vehicles. 
Unlike traditional lead-acid automotive batteries, advanced LiFePO4 lithium technology offers lighter weight, efficient power delivery, and stable voltage output, helping your vehicle start quickly and run smoothly. A built-in Battery Management System (BMS) continuously monitors the battery to help protect against over-charge, over-discharge, short circuits, and temperature fluctuations. The result is reliable starting power without the maintenance, excess weight, or guesswork. 
Whether you’re replacing a dead battery or upgrading to something that won’t quit, the MM-H5 Li is ready to go to work. No hassles. No maintenance. No interruptions. 
This is power with purpose, and it’s ready when you are. Are you powered to the max? 
Detailed Specifications: 
Voltage: 12.8 Volt 
Amperage: 27 AH 
Chemistry: Lithium 
CCA: 700 
Reserve Capacity (RC): 62 
Battery Size: 9.50 x 7.00 x 7.50 inches 
Weight: 9.20 lbs
Warranty: 5 years
Weight

9.20 Lbs

Volts

12.8

Terminal

Nut and Bolt

Chemistry

LiFePO4

CCA

700

Length

9.50

Width

7.00

Height

7.50

Warranty

5 Year

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Excellent
Mighty Max Battery
Based on 4689 reviews
Well packaged, battery looks to be good quality, will install on the weekend and update over time. Got it on Amazon.
Arrived quickly, week package. Week put them to use quickly in Spain.
Love my monster music box and my 1st battery lasted a long time.
Had a Legend battery bought in January of 2024 that went bad wouldn’t start under a load. I have a 2005 Volvo xc90 V8 so the battery cranking is important. Ordered the Mighty Max through Amazon I was overnighted to me , delivered to my doorstep. Recharged all ready to go drop in and start, beautiful! Has a 3 year warranty with options to extend that warranty. How great is that!
The batteries were packaged well, and arrived looking good. Now we need to hook them up.
Came fast and packaged well. Even came with a sticker. Fun stuff
Excellent battery replacement for Razor Electric bikes!
so far so good! scooter wouldn’t start but i got this battery the next day and it started right away!
ML22-12 Gel type and ML22-12 Non Gel type Batteries came in good condition, purchased from Amazon 6/23/26 and arrived the next day packaged really good.
Very well packaged and.arrived as promised