---
product_id: 379757478
title: "Mighty Max Battery ML9-12 12 V 9 Ah Rechargeable SLA Battery"
brand: "mighty max battery"
price: "R2764"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Mighty Max Battery"
url: https://www.desertcart.co.za/products/379757478-mighty-max-battery-ml9-12-12-v-9-ah-rechargeable
store_origin: ZA
region: South Africa
---

# 12V 9Ah power punch Performs in extreme temps Maintenance-free sealed AGM tech Mighty Max Battery ML9-12 12 V 9 Ah Rechargeable SLA Battery

**Brand:** mighty max battery
**Price:** R2764
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your life—reliable energy, zero compromises!

## Quick Answers

- **What is this?** Mighty Max Battery ML9-12 12 V 9 Ah Rechargeable SLA Battery by mighty max battery
- **How much does it cost?** R2764 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/379757478-mighty-max-battery-ml9-12-12-v-9-ah-rechargeable)

## 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

- • **Built to Endure:** Shock and vibration resistant for rugged, on-the-go lifestyles and outdoor adventures.
- • **Zero Hassle, Zero Leaks:** Sealed AGM design means maintenance-free use—no spills, no mess, just pure power.
- • **Power That Keeps You Moving:** 12V 9Ah capacity fuels everything from electric scooters to UPS systems with reliable energy.
- • **Fits Anywhere, Works Everywhere:** Compact size and versatile mounting options let you power your gear your way.
- • **Wide Compatibility, One Battery:** Trusted by top brands like Razor, Vexilar, and APC for seamless device integration.

## Overview

The Mighty Max ML9-12 is a 12V 9Ah sealed lead acid rechargeable battery featuring advanced AGM technology and a heavy-duty calcium-alloy grid. Designed for maintenance-free, leak-proof operation, it delivers consistent performance across a wide temperature range and resists shocks and vibrations. Compact and versatile, it powers a broad spectrum of devices including electric scooters, UPS systems, fishing electronics, and more, making it the go-to battery for professionals and enthusiasts who demand dependable energy on the move.

## Description

Delivering power when you need it the mighty max ML9-12 12 Volt 9 Ah uses a state of the art heavy-duty calcium-alloy grid that provides exceptional performance and Service life in both float and cyclic applications The ML9-12 is an absorbent Glass Mat (AGM) technology with a valve regulated design that can be used in enclosed and indoor environments without leaking or maintenance providing a superior performance for thousands of models Mighty max sla batteries are utilized in a wide variety of applications including consumer electronics electric vehicles engine starters golf carts hunting lawn and garden tools medical mobility motorcycles power sports portable tools solar toys and hobby access control devices emergency lighting security and more

Review: Excelente reemplazo y mi no break funciona como nuevo
Review: The ML9-12 SLA 12V 9AH battery is a solid choice for anyone looking for a reliable, maintenance-free power source for various applications. Here’s a breakdown of my experience with it: Pros: Compatibility: This battery is incredibly versatile, working seamlessly with a wide range of devices, including Aqua Vu, Marcum, Vexilar fishing electronics, Razor electric scooters, UPS systems, and even electric dirt bikes like the Razor MX350 and MX400. This compatibility makes it a go-to option for users with diverse needs. Reliable Performance: Whether used in high or low temperatures, this battery holds up well. I’ve used it in both warm and cold environments, and the performance remains consistent. Its ability to handle high discharge rates and recover from deep discharges is impressive, which speaks to its durability. Maintenance-Free: As a sealed lead acid (SLA) and AGM (Absorbent Glass Mat) battery, there’s no need to worry about spills or leaks. This feature also makes it easy to mount in any position, which is convenient for tight spaces or mobile setups. Shock and Vibration Resistance: The battery’s design allows it to withstand shocks and vibrations, which is a major plus if you’re using it in outdoor or off-road applications, such as electric scooters or fishing sonar units. Cons: No Accessories Included: The listing is clear that it includes just the battery. There are no wire harnesses or mounting accessories, which could be a downside if you’re looking for a complete kit. Make sure you have the necessary cables or mounts before purchasing. Size Consideration: While its dimensions (5.94 inches x 2.56 inches x 3.94 inches) are compact, it’s important to double-check the space available in your device to ensure compatibility. Overall Impression: The ML9-12 SLA 12V 9AH battery is a strong performer with great versatility. It’s a durable, maintenance-free option that works across many different devices and in various conditions. If you’re comfortable with the need to provide your own accessories and installation tools, this battery is a fantastic investment for reliable power on the go.

## Features

- Ml9-12 Sla Is A 12V 9Ah Sealed Lead Acid (Sla) Rechargeable Maintenance Free Battery
- Amperage 9 Dimensions 5.94 Inches X 2.56 Inches X 3.94 Inches Terminal F2 Listing Is For The Battery Only No Wire Harness Or Mounting Accessories Included
- Compatibility Aqua Vu Marcum Vexilar 12Volt Vexilar Fl-8Se Genz Pack Ion Block Rocker Ups Audio Hr-1234W-F2 Apc Be550G Vexilar Ip1212 Fl-12 Ice Pro Apc Back-Ups 600 Bn600 Marcum Lx-5 Ice Fishing Sonar Razor Ecosmart Metro Electric Scooter Vexilar Up2012D Fl-20 Ultra Pack Vision Cp1272 Razor E200 / E200S / E225 / E300 / E300S / E325 Geek Squad 875Va Ups Cyberpower Rb1290 Ups Apc Back-Ups Es Be725Bb Portable Fish Finder 570 Leoch Djw12-9 0 T2 Razor Mx350 Mx400 Electric Dirt Bike
- 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 | B00K8V2Y8W |
| Item model number | ML9-12 |
| Manufacturer | Mighty Max Battery |
| Product Dimensions | 15.24 x 6.35 x 10.16 cm; 2.49 kg |

## Product Details

- **Battery capacity:** 9
- **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 ML9-12 12 V 9 Ah Rechargeable SLA Battery - Image 1](https://m.media-amazon.com/images/I/61ETlI4-RLL.jpg)
![Mighty Max Battery ML9-12 12 V 9 Ah Rechargeable SLA Battery - Image 2](https://m.media-amazon.com/images/I/61G-0n-mhML.jpg)
![Mighty Max Battery ML9-12 12 V 9 Ah Rechargeable SLA Battery - Image 3](https://m.media-amazon.com/images/I/714tC6aO+VL.jpg)
![Mighty Max Battery ML9-12 12 V 9 Ah Rechargeable SLA Battery - Image 4](https://m.media-amazon.com/images/I/616aGOVqooL.jpg)
![Mighty Max Battery ML9-12 12 V 9 Ah Rechargeable SLA Battery - Image 5](https://m.media-amazon.com/images/I/71pxHDt8r8L.jpg)

## Available Options

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

## Questions & Answers

**Q: Would the battery minder be a good choice for a charger?**
A: I do it.  The typical BatteryMINDer like the Model 1510 or the Model 2012 only puts out between 1.5 amps and 2 amps.  That's just fine for charging and maintaining a 9Ah battery.

**Q: Is this the correct battery for the cyber power Lx1000g?**
A: This will work as a replacement for the RB1290 battery, same size and 9A 12 V.  They work well in Cyber power UPS's   just not certified (OEM) by Cyber power.  I have several models of Cyber power UPS's and they work in them but I do not have your model.  Your model calls for the RB1290 the same as mine.

**Q: Does this fit apc bn600**
A: According to the specifications of the BN600, this battery will work with it. The terminals are the same. The Mighty Max is rated at 9 Ah rather than the 8 Ah specified, but this simply gives more capacity. One dimension listing shows the specified replacement at 3.8 inches high, while the Mighty Max measures 3.94 high measured from base to top of terminals, so while it might be a snug fit, I strongly suspect this is simply sloppy measuring on someone's part and the fit will not be any problem.

**Q: Will this work for a cpap machine?**
A: Yes and no.  Please let me explain.  Your cPap machine requires 12 volts so it will work in that regard, however the power supply that comes with my machine is capable of over 6 amps.  So the remaining question is for how long ?  I would take a wild guess and say 3 maybe 4 hours but without knowing how much your machine draws (current wise) it is simply a guess.  If you can look up the specifications for your machine you can get a much better idea.  I am sorry I cannot be more helpful.  Have a great day!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by G***C on 16 February 2026*

Excelente reemplazo y mi no break funciona como nuevo

### ⭐⭐⭐⭐⭐ Review
*by B***N on 11 October 2024*

The ML9-12 SLA 12V 9AH battery is a solid choice for anyone looking for a reliable, maintenance-free power source for various applications. Here’s a breakdown of my experience with it: Pros: Compatibility: This battery is incredibly versatile, working seamlessly with a wide range of devices, including Aqua Vu, Marcum, Vexilar fishing electronics, Razor electric scooters, UPS systems, and even electric dirt bikes like the Razor MX350 and MX400. This compatibility makes it a go-to option for users with diverse needs. Reliable Performance: Whether used in high or low temperatures, this battery holds up well. I’ve used it in both warm and cold environments, and the performance remains consistent. Its ability to handle high discharge rates and recover from deep discharges is impressive, which speaks to its durability. Maintenance-Free: As a sealed lead acid (SLA) and AGM (Absorbent Glass Mat) battery, there’s no need to worry about spills or leaks. This feature also makes it easy to mount in any position, which is convenient for tight spaces or mobile setups. Shock and Vibration Resistance: The battery’s design allows it to withstand shocks and vibrations, which is a major plus if you’re using it in outdoor or off-road applications, such as electric scooters or fishing sonar units. Cons: No Accessories Included: The listing is clear that it includes just the battery. There are no wire harnesses or mounting accessories, which could be a downside if you’re looking for a complete kit. Make sure you have the necessary cables or mounts before purchasing. Size Consideration: While its dimensions (5.94 inches x 2.56 inches x 3.94 inches) are compact, it’s important to double-check the space available in your device to ensure compatibility. Overall Impression: The ML9-12 SLA 12V 9AH battery is a strong performer with great versatility. It’s a durable, maintenance-free option that works across many different devices and in various conditions. If you’re comfortable with the need to provide your own accessories and installation tools, this battery is a fantastic investment for reliable power on the go.

### ⭐⭐⭐⭐⭐ Review
*by C***C on 11 June 2025*

I am using 24 of these batteries at this point and about to invest in 48 more so. I have tons of equipment, and anything worth a darn is behind a UPS for clean power and to survive the occasional blip in power. In the last decade, I literally haven't replaced a power supply in anything at all except a TV once because I took a surge through the cable line I forgot to protect. The clean sinewave coming off of a good UPS ensures me maximum life from power supplies and other delicate components, protects my equipment from surges, and at the heart of it all is the MightyMax battery. I've been using the ML9-12 for all my UPS 650, 600, Network 40, and similar gear. I even build my own packs for larger installs like my 2200s and 1500s. MightyMax is the best battery money can buy, performing well over it's cost point. Don't buy expensive batteries from the UPS manufacturers. Yes, those batteries are great, but you can save money and not skimp on performance using MightyMax batteries. I have done extensive testing, being I'm a geek like that, and here is what I have found: 1. They really are 9AH, just a tad over. With a lot of testing, I am getting on average 9.6AH out of these batteries. I have never gotten under 9.2 and never more than 9.9. I have had other batteries claim to by 9AH and I get mid-8s which is horrible and deceptive. Not with MightyMax, whatever it says they are, they are. 2. They age really well. These batteries age well for their price. Realistically most cheap UPS replacement batteries last a year to 18 months or so and you replace them. The originals usually last around 4 years "on the shelf" meaning they rarely if ever actually get used. With no more than 1 deep discharge per year, you'll get right near that 4 years. The MightyMax batteries last around 3 years with the same "on the shelf" type usage but they are 1/3rd the price so I'm making money with "on the shelf" usage. 3. In areas more prone to outages that may cause deep discharges (like where I live), the OEM batteries last no more than 2 years when deeply discharged 6+ times per year. Sometimes the OEMs only last 18 months. The MightyMax batteries last 18 months or a bit more like this so they aren't quite as strong as the OEM batteries but they are close enough that at 1/3rd the price it is totally worth it. 4. These batteries can dump serious power. They handle a great discharge rate (C Rate) right on par with OEM batteries, in fact, the MightyMax actually fair a LITTLE better in this aspect, however not enough to write home about, but again, 1/3rd the price.... you seeing the pattern? Tips and Tricks: 1. The internals of the older APC UPS 600 are actually better than the internals of the new 650s IMHO. The difference from being a 650 or a 600? The battery realistically. Use this 9AH battery in an APC UPS 600 and magically you've got a 650. This battery fits perfectly in the 600 which usually uses a 7AH battery. I haven't seen any issue with Power Chute or anything reporting incorrectly and the charge rates seem to be relatively consistent. 2. The Network 40 ACP UPS has a little riser in the bottom (it's part of the molded plastic). If you cut that riser out you can fit one of these ML9-12 batteries and bingo, you have a APC 650! The battery charge rate is SLIGHTLY slower than the 650 from the 4 I measured but the parts look identical and I have seen no adverse effects during a power outage and run time is consistent. 3. If you have a battery that got a few deep discharges and seems to be shot, you can try using a desulfate mode on a small charger to revive the battery. I've done this with a few batteries that seem to have prematurely died before their time and it works in about a quarter of the cases. Since these batteries charge low and slow inside a UPS, sit topped off all the time, and always have a charge, they don't sulfate much, so this doesn't work all the time, but every once in a while you can revive one the ups is complaining about. These revived batteries seem to last another 6 months or so in my testing. OVERALL: Absolutely worth it. Go with MightyMax batteries every time.

## Frequently Bought Together

- ML9-12 - 12 Volt 9 AH, F2 Terminal, Rechargeable SLA AGM Battery,Pack of 1
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- ForEverlast Solar Panel, Deer Feeder Battery Charger, For Outdoor Use With Mounting Bracket

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-09*