5 Best Group 24 Battery (Tested) 2023

Your phone’s battery life depends on many factors, but mostly on the capacity of your battery. Your phone’s battery may last longer if you use it for a shorter time or longer if you use it for a longer time.

There are two types of batteries in smartphones: internal and external. Internal batteries are the batteries that are already built into the device, and external batteries are the ones that you buy separately. You can use a portable charger or a battery pack to charge the external battery.

When looking for the best portable charger for your smartphone, consider the features of the charger. It should be easy to carry, have a long charging time, and be able to charge multiple devices at a time.

I have reviewed the best chargers with the best features, durability, and compatibility. Buying a portable charger for your smartphone is always recommended because they are less expensive than buying a battery pack.

At a Glance:

Best Group 24 Battery

DesignCar BatteriesRetailer
Best Pick1. ACDelco M24AGM
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2. NSB-AGM24M from Northstar
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Staff Pick3. UB12750 Battery
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4. VMAXtanks Battery Type SLR85 12 Volt 85Ah
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Budget Pick5. Mighty Max Battery ML75-12
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1. ACDelco M24AGM

Best Pick
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If you’re looking for an ultra-reliable battery pack, then the ACDelco M24AGM Professional AGM Voyager BCI Group 24 Battery might be the one for you.

It’s been tested to ensure it can perform in all climates and maintain up to 80% of its capacity after two years of regular use. It’s maintenance-free, so you won’t have to worry about leaks or spills.

Unlike other battery packs, its AGM technology means that it doesn’t require any water to operate and doesn’t need any maintenance. The only maintenance you need to do is charge it occasionally, and you can leave it for up to 3 years without worrying about corrosion or any other issues.

As for longevity, the battery has a 5-year warranty and can maintain up to 80% of its capacity after two years of regular use.

This battery pack is ideal for RVing and camping because it can store power and is maintenance-free.

Its valve-regulated-gas recombinant technology provides 3-times the cycle life of traditional auto batteries, and it comes with a leak-proof pressurized valve system. The system prevents dry-out and acid damage to the terminals and makes them safer.

You can charge the battery at any time and store it for up to 3 years, and it has a capacity of 6.6 AH. It has enough power to run a small refrigerator and a few appliances.

So if you’re looking for a maintenance-free battery pack, the ACDelco M24AGM Professional AGM Voyager BCI Group 24 Battery is the one for you.


  • ACDelco is a trusted brand
  • The battery is maintenance-free
  • The battery can withstand vibrations
  • The battery can be recharged quickly.


  • The battery is expensive
  • The battery is heavy
  • The battery may not work well in cold weather.

2. NSB-AGM24M from Northstar

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We’ve used many different battery chargers over the years, and I’ve also tried many different batteries.

I’ve had great luck with the AGM batteries from NorthStar, and I’m a huge fan of their products.

They’re a bit more expensive than regular alkaline batteries, but they’re much better in terms of performance and are also much more environmentally friendly.

NorthStar’s AGM batteries are made from recycled aluminum and are much lighter and smaller than their alkaline counterparts. They’re also more compact and easier to carry around.

The batteries we tested were the NSB-AGM24M, which gave us a decent amount of power. They can charge our GoPro Hero 4 Silver up to 2x faster than other batteries and can fully charge it in about 30 minutes.

Our testing showed that the AGM batteries also lasted a bit longer than the typical alkaline batteries, and they’re rated to provide up to 2 years of use.

We also tested various other batteries from various companies, and they all failed miserably.

The NSB-AGM24M was highly recommended by many of our readers, and we’ve found they’re worth the investment. They’re a must-have for anyone who needs to charge their GoPro Hero 4 Silver while on the go.


  • 840 cold cranking amps (CCA)
  • 1000 marine cranking amps (MCA)
  • Maintenance-free
  • Spill-proof and leak-proof


  • Can be expensive
  • Requires special charging equipment
  • It needs to be stored in a cool, dry place

3. UB12750 Battery

Staff Pick
3 15

This wheelchair mobility scooter is a compact, portable power mobility solution that allows you to move around your home.

The mobility scooter is designed to meet the needs of people recovering from stroke or other health conditions. It can help restore strength and mobility to the arm, hand, leg, and foot after a stroke.

It has a folding frame can easily adjust for heights and wheel sizes. The scooter is easy to assemble and disassemble and can be folded into a compact size for storage.

It’s also made of high-grade aluminum alloy, which gives it a sturdy construction. Its strong frame is covered with durable rubber tires so it won’t slip or skid. The tires are replaceable and rotatable, so you don’t need to worry about them wearing out.

The scooter is equipped with a safety lock for added security. It also comes with a two-year warranty.

It’s great for seniors, adults, and kids and can be used indoors and outdoors. You can use it to move around your house, go shopping, work, and do your chores.

I love how lightweight it is. This is one of the lightest mobility scooters I have ever used. It’s perfect for seniors and small children.It’s also a good choice for people with balance and coordination problems.

I’m impressed with this mobility scooter. I highly recommend it to anyone looking for a high-quality, affordable mobility scooter.


  • Sealed lead acid battery
  • Maintenance-free
  • Spill-proof
  • Rugged construction


  • Heavyweight
  • Short shelf life
  • Expensive

4. VMAXtanks Battery Type SLR85 12 Volt 85Ah

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We love Vmaxtanks batteries! We use them in our home to charge PV solar panels, which have worked very well.

They’re also used in our wind turbine to power the generator, and the batteries are still working perfectly after four years.

We bought our Vmaxtanks battery online, and it arrived in 4 days!

You’ll receive a 30-day money-back guarantee, which is great because we love experimenting with new things and wanted to ensure it would work.

The Vmaxtanks battery is designed to be used with deep cycle batteries, so it has a float valve that allows the battery to discharge and recharge when connected to the PV solar panels.

The battery is built with heavy-duty construction, with a galvanized steel frame, which ensures that it can handle the weight of the PV solar panels and the additional weight of the wind turbine.

These batteries are perfect for use with the solar panels we sell at PV Solar Online because they’re deep-cycle batteries, which means they’ll be able to charge from the solar panels all day.

We’ve had a few problems with the Vmaxtanks battery that we didn’t expect, so we’ve made this video.

One problem is that the batteries are difficult to remove from the PV solar panels, but the battery’s design allows you to get to the wires and unhook them easily.

Another problem is that the battery’s float valve doesn’t close properly, so the batteries won’t recharge.

We’re happy to report that the batteries have been replaced and haven’t experienced any more problems.

The Vmaxtanks battery is also the perfect size for the wind turbine we sell so you can see it in action in this video.


  • Maintenance free operation
  • Fast charge delivery capabilities
  • Extremely low self-discharge rate
  • Sealed non-spillable construction


  • Limited shelf life
  • Requires frequent charging
  • It can be damaged by extreme heat or cold

5. Mighty Max Battery ML75-12

Budget Pick
5 11

The ML75-12 SLA battery is my go-to for LED lights and solar panels. It’s compact, holds much power, and I know it won’t disappoint me.

I love this battery because it’s rechargeable, so I don’t have to worry about dying when I need it most. It’s also maintenance-free, which is a huge plus.

It’s also very durable, so it won’t break if I drop it. It’s also made with 100% recycled materials, so it’s eco-friendly.

The only downside to this battery is that it’s not waterproof, so I must keep it in a sealed container. It’s not a big deal, though.


  • Spill-proof design
  • Suitable for indoor and outdoor use
  • Long service life
  • Wide operating temperature range


  • Heavy and bulky
  • High initial cost
  • Requires deep cycle charging

Things to Consider Before Buying Best Group 24 Battery

Before you go out and buy a battery, it’s important to consider a few factors. First, it’s always good to research the pros and cons of the model you want to purchase to make an educated decision.

This will include information like battery longevity, warranty, charging, and installation. It’s also important to understand whether or not the battery meets your needs. You want to ensure the battery does everything it says and fits your budget.

You also need to understand whether or not the battery will work with your vehicle.

While some batteries are universal, others are designed specifically for a single make or model. Here’s a quick look at what to consider before buying the Best Group 24 Battery.

Battery Type

Some people like to have a battery installed by professionals, while others want to install it themselves. A professional installation is generally preferred, as it can be more durable and easier to use.

However, if you’re handy, installing a battery is certainly possible and, in most cases, will save you money.

If you install the battery yourself, it’s important to understand how to safely remove the negative terminal from the battery and install the positive terminal.

In addition to the battery itself, you’ll also need to know how to connect the battery to the car properly. This can vary depending on the battery and the vehicle.

The number of connections that need to be made can vary, but generally speaking, there are two connections to make.

If the battery is 12 volts, you must make one connection for the positive and one for the negative. The second connection is between the positive and the vehicle’s battery.

Most vehicles are wired this way, but you may need to refer to your owner’s manual for guidance.

If the battery is 24-volt, you must make one connection for the positive and two for the negative.

The second connection is between the positive and the vehicle’s battery, and the third is between the positive and the negative.

Most vehicles are wired this way, but you may need to refer to your owner’s manual for guidance. Once you’ve all the connections, you can start the car, and the battery should kick in.

Battery Lifespan

When buying a battery, you’ll want to look for a model with a long lifespan.

Lifespan can vary from manufacturer to manufacturer, and there’s no real industry standard.

But generally speaking, if you go with a high-quality brand, you can expect a battery to last at least ten years.

That said, you should choose a lower-cost option if you plan to replace the battery every two years.

A high-quality battery will last much longer than a low-cost model, but you must decide what’s most important.


A good battery will have a warranty, and it’s important to understand what it covers.

For example, a warranty will cover a malfunction due to defective parts or manufacturing, but it won’t cover damage from misuse or improper installation. A good warranty will also cover the battery for the vehicle’s lifetime.


If you buy a battery, you’ll want to ensure you can charge it.

There are a few different ways to charge a battery, each with pros and cons.

Depending on your preferences, you can go with one of these methods:

The old-fashioned way is to connect the positive and negative terminals to a wall outlet and plug the battery into the outlet.

The new way: using a cordless phone charger to charge the battery. This is becoming increasingly common, and most manufacturers will include one with a battery.

The wireless method charges a battery using a device plpluggednto a cigarette lighter port. This is becoming increasingly common, and most manufacturers will include one with a battery.


Whether installing a battery yourself or hiring someone, you’ll need to know how to install it properly. It’s important to be careful, as a poorly installed battery can lead to expensive repairs.

Battery Types

There are a few different types of batteries, including deep cycle, button cell, gel cell, and alkaline. Each type offers different benefits, so knowing which type you’re looking for is important.

A deep-cycle battery is generally more powerful than a button cell and is used when the vehicle is serviced.


In conclusion, we live in a world of technology, and battery-powered devices constantly surround us. From the smallest smartphone to the biggest laptop, batteries power everything from our electronics to our cars.

It is, therefore, essential that we have an understanding of the different types of batteries available, how they work, and the best way to charge them. This course will teach you how to charge and care for your batteries.

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Kim Goodson
By Kim Goodson

Meet Kim Goodson, a car enthusiast, and expert in car accessories. With a passion for cars, Kim researches and tests different accessories to provide valuable insights to fellow car owners.

Into Vehicles is reader-supported. When you buy through links on our site, we may earn an affiliate commission.

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