---
product_id: 53289649
title: "Mighty Max Battery ML7-12 - 12 VOLT 7.2 AH SLA F1 TERMINAL BATTERY - Mighty Max Battery brand product, black (Pack of 1)"
brand: "mighty max battery"
price: "39012 Ft"
currency: HUF
in_stock: true
reviews_count: 8
category: "Mighty Max Battery"
url: https://www.desertcart.hu/products/53289649-mighty-max-battery-ml7-12-12-volt-7-2-ah
store_origin: HU
region: Hungary
---

# Maintenance-free sealed lead acid tech 12V 7.2Ah power capacity F1 terminal for easy drop-in replacement Mighty Max Battery ML7-12 - 12 VOLT 7.2 AH SLA F1 TERMINAL BATTERY - Mighty Max Battery brand product, black (Pack of 1)

**Brand:** mighty max battery
**Price:** 39012 Ft
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your peace of mind—never miss a beat with Mighty Max!

## Quick Answers

- **What is this?** Mighty Max Battery ML7-12 - 12 VOLT 7.2 AH SLA F1 TERMINAL BATTERY - Mighty Max Battery brand product, black (Pack of 1) by mighty max battery
- **How much does it cost?** 39012 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/53289649-mighty-max-battery-ml7-12-12-volt-7-2-ah)

## Best For

- mighty max battery enthusiasts

## Why This Product

- Trusted mighty max battery brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Backup Solution:** Highly rated and widely used for ONT, security systems, and power tools—join thousands who never get caught powerless.
- • **Plug & Play F1 Terminals:** Quick and secure installation with standard F1 spade connectors—no extra tools or adapters needed.
- • **Reliable 12V Power Boost:** Perfect 7.2Ah capacity to keep your devices running longer without interruption.
- • **Shock & Vibration Resistant:** Engineered to withstand bumps and shakes, ensuring consistent performance in any environment.
- • **Maintenance-Free Sealed Lead Acid:** No spills, no fuss—just dependable, rechargeable power in any orientation.

## Overview

The Mighty Max ML7-12 is a 12V 7.2Ah sealed lead acid rechargeable battery featuring maintenance-free design and F1 spade terminals for easy installation. Compact and durable, it resists shocks and vibrations, making it ideal for backup power in ONT devices, security alarms, and power tools. Trusted by thousands, it delivers reliable, long-lasting performance in a sleek, drop-in replacement form factor.

## Description

ML7-12 - 12 VOLT 7 2 AH SLA BATTERY

Review: Perfect Replacement Battery for My ONT - I purchased this battery to replace the backup battery in my home’s ONT, which keeps my fiber internet and phone service running during power outages. My original battery had begun triggering low battery alerts and was no longer holding a proper charge, so I needed a compatible 12V 7Ah sealed lead acid replacement with F1 terminals. This unit is a 12V 7Ah SLA battery with F1 spade terminals, and the dimensions matched my original battery exactly. The terminal size and placement were identical, which made it a true drop in replacement for my ONT. If your existing battery is labeled 12V 7Ah with F1 connectors, this should be fully compatible, but I recommend checking the label on your current battery to confirm before ordering. Removing the old battery was very simple. I opened the ONT battery compartment, disconnected the red and black F1 spade connectors, and lifted the old battery out. Installing this one took just a few minutes. The connectors slid onto the terminals securely, and the battery fit neatly into the compartment without any forcing or adjustment. As soon as I connected it, the ONT recognized the new battery and the low battery warning stopped immediately. The system has been operating normally since installation. While I have not yet had a long power outage to fully test runtime, the battery is charging properly and everything appears stable. For anyone needing a standard 12V 7Ah replacement with F1 terminals for an ONT backup system, this has been a reliable and cost effective solution in my experience. Excellent value for the money.
Review: Trustworthy Seller! - The 5 star is for customer service. The battery malfunctioned about 7 months after purchase. My home security alarm panel was showing low battery warnings. I reached out to the seller and confirmed that it was still under warranty. The seller promptly responded and sent out a replacement battery. Very impressed with the seller!

## Features

- Ml7-12 Sla Is A 12V 7 2Ah Sealed Lead Acid (Sla) Rechargeable Maintenance Free Battery
- Dimensions 5 94 Inches X 2 56 Inches X 3 94 Inches Terminal F1 Listing Is For The Battery Only No Wire Harness Or Mounting Accessories Included
- Package Quantity : 1
- Rechargeable Battery That Can Be Mounted In Any Position Resists Shocks And Vibration Long Lasting High Performance In High And Low Temperatures

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00K8V30D0 |
| Amperage | 7.2 Amps |
| Antenna Location | Power Tool |
| Battery Capacity | 72 Amp Hours |
| Battery Cell Composition | Sealed Lead Acid |
| Battery Cell Type | Sealed Lead Acid |
| Battery Weight | 5 Pounds |
| Best Sellers Rank | #7,722 in Health & Household ( See Top 100 in Health & Household ) #6 in 12V Batteries |
| Brand | Mighty Max Battery |
| Built-In Media | Battery |
| Compatible Phone Models | No Phone Models |
| Customer Reviews | 4.4 out of 5 stars 13,618 Reviews |
| Item Dimensions | 6.25 x 2.75 x 4.25 inches |
| Item Type Name | SLA Battery |
| Item Weight | 4.5 Pounds |
| Manufacturer | Mighty Max Battery |
| Model Name | ML7-12 |
| Model Number | ML7-12 |
| Number of Batteries | 1 12V batteries required. |
| Recommended Uses For Product | Power Tool |
| Reusability | Rechargeable |
| UPC | 860000524902 082045914993 |
| Unit Count | 1.0 Count |
| Voltage | 12.0 |
| Warranty Description | Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service. |

## Product Details

- **Battery Capacity:** 72 Amp Hours
- **Battery Cell Composition:** Sealed Lead Acid
- **Brand:** Mighty Max Battery
- **Number of Batteries:** 1 12V batteries required.
- **Recommended Uses For Product:** Power Tool

## Images

![Mighty Max Battery ML7-12 - 12 VOLT 7.2 AH SLA F1 TERMINAL BATTERY - Mighty Max Battery brand product, black (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/61z9DOmihhL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Will this work for my verizon fios backup battery?**
A: I use this as a replacement for my FIOS battery backup. My backup is in a wall mounted unit, where newer backups are smaller and use smaller batteries (I think “D” cells).

**Q: Is there a car battery charger maintainer to keep this battery charged?**
A: AXTRA 12V car battery charger maintainer will work to charge this battery. It has 0.9-amp slow charge (trickle charge and float charge) and 3.6-amp fast charge. AXTRA 3.6-amp car battery charger is great charger to keep battery fully charged. For me to leave the charger connected, charge and maintain the car battery, I would definitely go with AXTRA car battery charger.

**Q: Can i use this battery to replace 12v 7ah battery**
A: That's what I did.

**Q: My charger has 3 12v options, which should i use from this list?: 12v, 12v agm, 12v lithium.**
A: Just use 12V. This is a lead acid battery. Your other two settings are for lithium and glass mat. This is neither of those.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Replacement Battery for My ONT
*by M***B on February 26, 2026*

I purchased this battery to replace the backup battery in my home’s ONT, which keeps my fiber internet and phone service running during power outages. My original battery had begun triggering low battery alerts and was no longer holding a proper charge, so I needed a compatible 12V 7Ah sealed lead acid replacement with F1 terminals. This unit is a 12V 7Ah SLA battery with F1 spade terminals, and the dimensions matched my original battery exactly. The terminal size and placement were identical, which made it a true drop in replacement for my ONT. If your existing battery is labeled 12V 7Ah with F1 connectors, this should be fully compatible, but I recommend checking the label on your current battery to confirm before ordering. Removing the old battery was very simple. I opened the ONT battery compartment, disconnected the red and black F1 spade connectors, and lifted the old battery out. Installing this one took just a few minutes. The connectors slid onto the terminals securely, and the battery fit neatly into the compartment without any forcing or adjustment. As soon as I connected it, the ONT recognized the new battery and the low battery warning stopped immediately. The system has been operating normally since installation. While I have not yet had a long power outage to fully test runtime, the battery is charging properly and everything appears stable. For anyone needing a standard 12V 7Ah replacement with F1 terminals for an ONT backup system, this has been a reliable and cost effective solution in my experience. Excellent value for the money.

### ⭐⭐⭐⭐⭐ Trustworthy Seller!
*by A***G on October 24, 2025*

The 5 star is for customer service. The battery malfunctioned about 7 months after purchase. My home security alarm panel was showing low battery warnings. I reached out to the seller and confirmed that it was still under warranty. The seller promptly responded and sent out a replacement battery. Very impressed with the seller!

### ⭐⭐⭐⭐⭐ Great battery
*by E***F on February 6, 2026*

Great battery for alarms, fully charged and no issues. Installed in commercial alarm systems

## Frequently Bought Together

- ML7-12 - 12 VOLT 7.2 AH SLA BATTERY - Mighty Max Battery brand product, black
- 16 Gauge Fuse Holder ATC/ATO, SIM&NAT 2 Packs in-Line Automotive Blade Fuse Holder with 10PCS Standard Car Fuses, 10A 15A Automotive Replacement Fuses

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-13*