12V 20A Smart Battery Charger and Maintainer with Repair Mode, Compatible with LiFePO4, SLA, GEL, AGM, and Deep Cycle Batteries
12V 20A Smart Battery Charger and Maintainer with Repair Mode, Compatible with LiFePO4, SLA, GEL, AGM, and Deep Cycle Batteries
12V 20A Smart Battery Charger and Maintainer with Repair Mode, Compatible with LiFePO4, SLA, GEL, AGM, and Deep Cycle Batteries
12V 20A Smart Battery Charger and Maintainer with Repair Mode, Compatible with LiFePO4, SLA, GEL, AGM, and Deep Cycle Batteries
12V 20A Smart Battery Charger and Maintainer with Repair Mode, Compatible with LiFePO4, SLA, GEL, AGM, and Deep Cycle Batteries

$69.99

12V/24V 20Amp Smart Automatic Charger & Maintainer with Restoration, Desulfator, and Winter Mode for Car, RV, Boat, ATV, Truck, Motorcycle – Lithium, AGM, SLA, Gel, Wet, Deep Cycle

Availability: In stock

SKU: ML-12V20A Category:
Charge Like a Pro. Even If You’re Not One.
Whether you’re powering up your car, motorcycle, ATV, or deep cycle equipment, the Mighty Max ML-12V20A Smart Charger makes battery maintenance easy, effective, and safe. Designed for all 12V and 24V lead-acid batteries (AGM, GEL, SLA, WET, and more), this automatic 7-stage charger detects, diagnoses, and delivers the right charge—every time.
Need to bring a tired car or motorcycle battery back from the dead? Hit the Repair Mode and let the charger do the work. With built-in protections and an adaptive temperature sensor, it keeps your battery safe from overcharging, freezing, or frying. Exclusive to car and motorcycle batteries.
No buttons to fumble with, just plug, select your mode, and let your Mighty Max charger handle the rest. 
Specs at a Glance:

Dual Voltage Output: Auto-selects between 12V and 24V  
Input Voltage: 100–240V AC, 50/60Hz 
Output Voltage: 12V / 24V (auto select) 
Output Current: 12V 20A/24V 10A 
Charging Modes: AGM/LiFePO4, Car, Motorcycle, Repair 
Safety: Reverse Polarity, Overcharge, Short Circuit Protection 
Cooling: Internal Fan
Size: 7.62×5.31×4.06inches
Certifications: CE / FCC / RoHS
Quantity

1
Length

7.62
Width

5.31
Height

4.06
Volts

12V
Weight

3.00 Lbs

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Excellent
Mighty Max Battery
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Kevin Dewey
Poseidon came properly packaged and arrives fast I purchased from Home Depot for my 2018 turbo s dual battery setup going to try these two batteries out and I'll keep you updated on the status and how long they last big system fast car running the dunes it's dune season let's go
Wade Rome
Very Heavy Battery with excellent fit & finish. Arrived with full charge.
Jonathan P. Kudla
You receive this paper slip with your new battery- register online and receive an additional 3 months of warranty! You register online and then told - oh! you also have to post an online review with a photo to get those extra months! So, here ya go.
Leon Woodruff
I ordered the batteries from Home Depot. They arrived sooner than expected. They were a performance replacement, and Granny is up and running the seats again!
Chris McMullen
Goog price, good specs, and it works.
Pierre F
Great price for 9ah batteries.
Robert Greene
Good starting power and fit easily.
Rodney Butts
Awesome product fitted exactly as it should.
Victor Rueda
Perfect fit just like the original battery. Generator started right up
greg duval
These batteries are some of the best I ever purchased my last set of 4 lasted 6 years. They were a great price and shipped free very very fast. Thank you spexcarz 9-25-2026

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