Group U1 Batteries
Batteries for
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UB12350 Battery - Group U1 12V 35Ah Replacement EP-SLA12-35LSpecial Price $88.95 Regular Price $105.95 -
MotoBatt MBU1-35 Sealed AGM Power Sport & Tractor BatterySpecial Price $149.99 Regular Price $155.93 -
UB12350-I2 (Group U1) 12V 35Ah Universal BatterySpecial Price $98.95 Regular Price $105.95
Power your world with our premium Group U1 battery collection. Expertly selected for reliability and performance, each battery is built to start your mower, run your scooter, and energize your projects without fail.
The Group U1 Battery is the perfect balance of starting power and steady energy. Built to a universal size standard, this versatile battery uses advanced AGM technology, making it sealed, spill-proof, and completely maintenance-free.
It delivers the strong jolt needed for a lawn tractor and the long-lasting endurance for a mobility scooter in one powerful package. Explore our curated selection and find the dependable power your machine deserves.
Our Featured Group U1 Batteries
We have a bunch of great batteries for you to look at. Each one is special in its own way. Let's find the one that is just right for you!
For High-Power Demands: MotoBatt Sealed AGM Battery
Do you have a big machine that needs a lot of power to get started? Then you need a battery that is up for the challenge. For the toughest jobs, we highly recommend the MotoBatt MBU1-35 Sealed AGM Battery. This battery is super strong and perfect for UTVs or big lawn tractors.
It gives a big jolt of power to start even the toughest engines. Plus, it is an AGM battery, which means it is sealed up tight. You never have to worry about spills or adding water. It also comes with a great 2-year warranty, so you can feel good about your purchase.
The All-Rounder: Universal 12V 35Ah Battery
Meet our most popular battery! People love it because this 12-volt U1 battery works for so many different things. If you need a reliable and versatile option, the Universal UB12350 12V 35Ah Battery is a true all-star.
You can use it in a mobility scooter to get around town, or as a backup power source for your computer. It is super reliable and just works. We also have it with different kinds of connectors, so it is easy to install in your machine.
For Deep Cycle Needs: MotoBatt Mobility Battery
Some batteries are good at starting things, but others are champs at running for a long, long time. We call these "deep cycle" batteries. The MotoBatt MBD12350NB Mobility Battery is one of those long-distance runners.
This battery is made for things that need power all day long. Think of electric wheelchairs or solar panels that store power. It’s a sealed AGM battery, so it is built to be tough and last for many years of use.
The Premium USA-Made Option: Lifeline 33Ah Battery
If you want the absolute best of the best, look no further. Made by hand right here in the USA, the Lifeline GPL-U1 33Ah Battery is so good that even the Coast Guard approves it for use on boats!
This battery is a powerhouse. It is great for both starting big engines and running things for a long time. It also has an amazing 5-year warranty. It’s a top-quality choice for anyone who needs serious, reliable power.
For All Kinds of Setups: Universal Group U1 Battery
This is another version of our popular Universal battery. Loved for its simple, strong design, the Universal UB12350-I2 Group U1 Battery is a fantastic group U1 battery and a real workhorse.
It’s great for home alarm systems, kids' ride-on toys, and so much more. Like its sibling, it is a sealed AGM battery, which means no leaks and no maintenance for you. Just connect it, and you are ready to go.
For Solar & Renewable Energy: Sun Xtender Solar Battery
Are you using the power of the sun? This battery is made just for you. For people with solar panel systems, the number one choice is the Sun Xtender PVX-340T Solar Battery.
It is really good at storing solar power so you can use it later. It has special technology inside that helps it live a very long and happy life. If you are serious about off-grid power, this is the battery you need.
What is a BCI Group U1 Battery?
That sounds like a complicated name, but it is actually really simple! A BCi group U1 battery just tells you the size of the battery. Think of it like a shoe size. A size 9 shoe is a size 9 shoe, no matter who makes it.
The Battery Council International (BCI) created these sizes so it’s easy to replace your battery. You know that any battery with the "U1" label will fit perfectly in your machine. This makes shopping for a new battery super easy.
So, what are the group U1 battery dimensions? They are usually about 7.7 inches long, 5.1 inches wide, and 7.2 inches high. This small size makes them a great fit for all kinds of things without taking up too much space.
Key Specifications to Consider
When you look at batteries, you might see some letters and numbers that seem confusing. Don't worry, we'll explain them in a simple way. Knowing these will help you pick the perfect battery.
Battery Type: AGM vs. Flooded Lead-Acid
There are a few kinds of batteries out there, but we really love AGM batteries. All the batteries we talked about above are AGM.
AGM (Absorbent Glass Mat) batteries are modern and awesome. The liquid inside is soaked up in a special mat, so it can't spill. This makes them safe, strong, and they last longer. Best of all, you never have to do any work on them!
Flooded Lead-Acid batteries are the old-school batteries. They are cheaper, but you have to check them and add water sometimes. They can also leak if they tip over. We think AGM is a much better choice for most people.
Cold Cranking Amps (CCA)
CCA is a measure of a battery's starting power in the cold. Think of it like a big yawn and stretch in the morning to wake up. A battery with more CCA has more "oomph" to get an engine started, especially on a chilly day.
If you have a lawn tractor that you use in the fall, you will want a battery with good CCA. A U1 battery 350cca has plenty of power to start most mowers without any trouble. It’s a great number to look for.
Amp Hour (Ah) Rating
Amp Hour, or Ah, tells you how long a battery can last before it needs to be recharged. It’s like the size of the gas tank in a car. A bigger Ah number means a bigger "tank" of power.
This is super important for things like mobility scooters. A higher Ah means you can travel farther before you need to plug it in. Our batteries have great Ah ratings, so you can keep going and going.
Terminal Type & Polarity
The terminals are the little metal posts on top of the battery where you connect the cables. U1 batteries can have different kinds of terminals, like a simple nut and bolt or a threaded post.
You just need to make sure the terminals on your new battery match the cables on your machine. Also, make sure the plus (+) and minus (-) signs are on the correct sides. If you are not sure what you need, our Battery Finder Tool can help you figure it out in seconds!
Common Applications for Group U1 Batteries
You would be amazed at how many things use a U1 battery. This little powerhouse is used in all sorts of machines that we use every day. They are super handy and versatile.
Here are just some of the places you can find our Group U1 batteries hard at work:
Lawn and Garden: This is the most common use! They are perfect for riding mowers and lawn tractors. Big brands like John Deere, Craftsman, and Husqvarna often use this size.
Mobility: Electric wheelchairs and mobility scooters need reliable, long-lasting power. Our deep-cycle U1 batteries are perfect for helping people get around safely.
Powersports: Got a UTV or a side-by-side vehicle? The high power of a good AGM U1 battery can give you the strong start you need to get your adventure going.
Renewable Energy: People who use solar or wind power love these batteries. They are great for storing clean energy to power lights, radios, and other things in a cabin or home.
Marine & RV: While they are small, they are great for running things on a boat or in a camper. You can use them for trolling motors or as a backup power source.
Backup Power: They are also used in emergency systems. This includes backup lighting in buildings and UPS systems that keep your computer on during a power outage.
Why Choose Impact Battery?
We know there are a lot of places to buy batteries. But at Impact Battery, we believe we are different. We don't just sell you a box; we provide a promise of quality and support.
We are experts who love what we do. We test and check every group U1 battery to make sure it is a great product before we offer it to you. We want you to be happy with your battery for years to come.
Also, we are here to help. If you have a question or are not sure which battery to pick, just ask! Our friendly team of battery specialists is ready to help you. Plus, we ship fast, so you can get the power you need delivered right to your door.
Frequently Asked Questions
Still have questions? We have answers! Here are some of the most common things people ask about Group U1 batteries.
What is a Group U1 battery used for?
A Group U1 battery is most often used in lawn and garden equipment like riding mowers and tractors. They are also perfect for mobility scooters, electric wheelchairs, UTVs, and small solar power systems that need reliable energy.
How long does a Group U1 battery last?
Typically, a high-quality AGM Group U1 battery will last between 4 and 6 years. Lifespan depends on proper charging and how you use it, but our sealed AGM models are built to provide many seasons of reliable service.
Are all U1 batteries the same size?
Yes, for the most part. The "U1" designation is a BCI size standard, so they all share similar dimensions (about 7.7" x 5.1" x 7.2"). This makes it easy to find a replacement that fits your equipment perfectly.
What is the difference between a U1 and a U1R battery?
The only difference is the position of the positive (+) and negative (-) terminals. On a U1 battery, the positive is on the left. The "R" in U1R stands for reverse, meaning the positive is on the right.
Do I need to add water to my U1 battery?
No, not with the batteries we sell! All of our Group U1 batteries are sealed AGM models. They are completely maintenance-free, so you never have to worry about checking fluid levels or adding water. Just charge it and go.
What does CCA mean for my mower battery?
CCA stands for Cold Cranking Amps, which is how much power the battery can deliver to start an engine in cold weather. A higher CCA, like 350cca, means the battery has more starting power on chilly mornings.
Conclusion
Finding the right power source is so important. From making sure your lawn mower starts every time to providing the freedom of a powered wheelchair, having the best battery makes all the difference. The right Group U1 Batteries are the key to keeping your world running smoothly.
Take a look through our collection and find the perfect match for your needs. Every battery we sell is backed by our knowledge and our promise of great service. We are excited to help you power your life.


