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
Based on 4585 reviews
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Donna Sherian
I purchased the Mighty Max ML7-12 12V 7.2Ah battery on Amazon in June 2026 to replace the battery in my APC Back-UPS ES 550, and it worked perfectly. The battery was very reasonably priced, arrived quickly, and was incredibly easy to install.

The fit was exact, the connections were straightforward, and my UPS was back up and running in just a few minutes. Now my modem and Wi-Fi system stay powered during outages and power flickers, which has eliminated the need to constantly reset my network equipment.

If you’re looking for an affordable, reliable replacement battery for a UPS, alarm system, or other backup power application, I highly recommend the Mighty Max ML7-12. Great value, easy installation, and excellent performance so far!
kevin jenkins
POWER PROVIDER!! Love It.
Dave Peleshok
Great battery. Working perfectly in my garage door openers.
Alison Russo
Batteries were easy to install. I've used this product before - no issues
Adam Atlas
Nice products, used many and enjoyed all. Really high quality batteries and chargers,!!! 👍
Mike Gibson
The Mighty Max battery is a great product and outstanding value, outperforming batteries costing triple the price.
Thomas Owens
Received on time
Jeff Allen
Ordered as a replacement battery for a 2016 Honda PCX150. Received with a charges which was a nice plus. Battery was fully operational when received and installed. Only issue is in the terminal attachments in that the “keeper” nut would not stay stationary within the battery terminal hubs when trying to screw the terminal to the cable(s). Had to shim and/or tape them in place in order to start the bolts and complete the attachment to the battery terminals. Otherwise appears to be a good replacement battery. Would purchase another when the time comes,
Joe Rios
Shipped timely, looknforward to installing it.
Helen Allen
Battery was received from UPS in a beat up box with a lot of dirt and ink stains on the outside of the box. The inner box with the battery was unharmed. This was an Amazon ship and the packaging was not up to their standard.

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