Keeping your John Deere D105 running smoothly season after season starts with a reliable battery. A weak or failing battery can leave your mower stranded in the garage, turning a simple lawn care task into a frustrating ordeal. The right battery ensures consistent starts, dependable power for your mower’s electrical system, and peace of mind.
This roundup simplifies your search by highlighting eight excellent battery options for the John Deere D105. We’ve compiled a selection of AGM and sealed lead-acid batteries known for their compatibility, maintenance-free operation, and strong performance to help you get back to a perfectly manicured lawn with confidence.
Top Battery Picks for Your John Deere D105
- UPLUS U1 Riding Lawn Mower Battery, 12V 360CCA
- Caltric AGM Battery Compatible with John Deere D100 D105
- Marxon U1 330CCA Riding Lawn Mower Batteries
- Autocessking Lawn Garden AGM Battery Group 1
- Mighty Max Battery ML-U1 12V 200CCA Battery
- ExpertPower 12 V 35 AH EXP 12350 Sealed Lead Acid Battery
- Mighty Max Battery 12V 35AH Lawn Mower Battery
- Universal Power Group UB12350 12V 35AH Sealed AGM Battery
UPLUS U1 Riding Lawn Mower Battery, 12V 360CCA
The UPLUS U1 battery is a strong contender with its impressive 360 Cold Cranking Amps (CCA), providing the reliable starting power your John Deere D105 needs. Built as a direct BCI Group U1 replacement, it fits perfectly and is completely maintenance-free. You will not have to worry about checking water levels or dealing with acid spills, making installation and long-term use straightforward.
This battery is constructed with 99.99% pure primary lead, which promotes better charging efficiency and greater overall reliability compared to batteries using recycled materials. It is rigorously tested for safety and performance, ensuring OEM-level compatibility with your mower and other major brands like Cub Cadet and Husqvarna.
Caltric AGM Battery Compatible with John Deere D105
For those seeking a battery from a brand known for specific compatibility, the Caltric AGM battery is an excellent choice. It is designed to be a direct fit for the John Deere D105 and other D100 series models, taking the guesswork out of your purchase. This AGM battery is sealed and spill-proof, allowing for safe mounting in various positions without risk of leakage.
The product listing provides an extensive list of compatible part numbers from John Deere, Kawasaki, and other manufacturers, giving you confidence in its fit and function. It is a reliable, ready-to-install power source that will get your mower back in working order.
Marxon U1 330CCA Riding Lawn Mower Batteries
The Marxon U1 battery offers a balance of solid performance and durability with 330 CCA. Its construction is focused on resilience, featuring shockproof material that enhances its ability to withstand the vibrations and bumps common in lawn mowing applications. This build quality also contributes to better heat resistance.
This battery is another maintenance-free AGM option, ensuring a hassle-free experience. It is confirmed to be compatible with a wide range of John Deere models, including the EZtrak Z425, as well as brands like Troy-Bilt and Craftsman, making it a versatile and dependable selection.
Autocessking Lawn Garden AGM Battery Group 1
The Autocessking AGM Battery is a straightforward and reliable Group U1 power source for your lawn and garden equipment. It provides the essential starting power needed for a smooth start every time you turn the key on your John Deere D105. As a sealed AGM battery, it is safe, maintenance-free, and will not leak.
This battery is designed as a general replacement for many popular mower brands, including John Deere, Toro, and Cub Cadet. It represents a solid, no-fuss option for homeowners looking for a dependable battery that gets the job done without complication.
Mighty Max Battery ML-U1 12V 200CCA Battery
Mighty Max is a well-known brand in the power sports and lawn equipment battery market, and this ML-U1 model is a trusted choice. It delivers 200 CCA, which is sufficient for many riding mowers, including the John Deere D105. The battery is sealed and spill-proof, making it safe and easy to handle.
This SLA/AGM battery is engineered for a long service life and can operate effectively across a wide range of temperatures. It recovers well from deep discharges, a feature that adds to its reliability and makes it a practical, long-term power solution for your mower.
ExpertPower 12 V 35 AH EXP 12350 Sealed Lead Acid Battery
The ExpertPower EXP12350 is a highly regarded sealed lead acid battery known for its dependable performance in various applications. While often used for deep-cycle purposes like solar energy storage, its 35 Amp-hour (AH) capacity can be beneficial for lawn mowers, providing a strong and steady power reserve.
As one of the most trusted and reviewed brands on Amazon, ExpertPower batteries are built with quality and safety in mind. Its dimensions are compatible with many standard battery boxes, and its sealed construction ensures safe, maintenance-free operation in your John Deere D105.
Mighty Max Battery 12V 35AH Lawn Mower Battery
This Mighty Max battery offers a different approach with its 35AH capacity, focusing on providing sustained power. This can be an advantage for ensuring consistent electrical performance beyond just the starting cycle. It is designed specifically for compatibility with John Deere lawn mowers.
Like other Mighty Max products, this battery is built to be a durable and maintenance-free power source. Its sealed AGM design prevents leaks and eliminates the need for water refills, offering a set-and-forget solution for your lawn care needs.
Universal Power Group UB12350 12V 35AH Sealed AGM Battery
The Universal Power Group UB12350 is another robust 35AH AGM battery suitable for powering your John Deere D105. Its sealed construction makes it safe for use in confined spaces and resistant to vibrations, which is ideal for the operating conditions of a riding mower.
This battery is designed for deep-cycle use but also provides reliable starting power. It is a versatile unit that can handle the demands of starting the engine and running auxiliary components, all while requiring zero maintenance throughout its service life.
Buying Guide: How to Choose the Best Batteries for John Deere D105 Lawn Mower
When I need to replace the battery in my John Deere D105, I don’t just grab the first one I see. There are a few key things I always check to make sure I get a battery that will last and perform well. Getting the right fit, both physically and electrically, is the most important part of the process.
First and foremost, you have to match the battery group size. For the John Deere D105, the correct size is almost always a U1. This refers to the battery’s physical dimensions, terminal placement, and type. Using the wrong group size is a recipe for frustration; it probably won’t fit in the battery tray, and the cables might not reach the terminals. Sticking with a U1 group battery is the safest bet for a direct, no-hassle replacement.
Next, look at the Cold Cranking Amps (CCA). This rating tells you how much power the battery can deliver to start the engine in cold weather. The original equipment manufacturer (OEM) battery for the D105 typically has a CCA around 230. I always look for a replacement that meets or slightly exceeds this number. A higher CCA rating, like 250 or more, isn’t strictly necessary, but it can provide a little extra starting power, which is nice on those cooler spring mornings. The Amp Hour (Ah) rating is another spec to note. It indicates the battery’s capacity, or how long it can provide a sustained current. For a lawn mower battery, an Ah rating around 18 to 20 is standard and perfectly adequate.
You will also face the classic choice: lead-acid versus AGM (Absorbent Glass Mat). A standard lead-acid battery is the traditional, budget-friendly option. However, it requires periodic checking and topping off with distilled water. An AGM battery is a type of sealed lead-acid battery that is completely maintenance-free. There are no caps to open, and it won’t leak, which makes it safer and more convenient. I personally prefer AGM batteries for my lawn equipment because I don’t have to think about maintenance.
Finally, consider the brand reputation and warranty. A battery from a known brand with a solid warranty gives me peace of mind. A warranty of two to three years is pretty standard for a good quality lawn mower battery. It is a sign that the manufacturer stands behind their product. When I am looking for the 8 best batteries for John Deere D105 lawn mower for 2025, I focus on these factors to find a reliable and long-lasting power source that will get the job done season after season.
Frequently Asked Questions
What is the correct battery group size for a John Deere D105?
The correct battery group size for a John Deere D105 is U1. This is the standard size that ensures the battery will fit perfectly into the mower’s battery tray and that the terminals will be in the right position for the cables to connect without any strain or modification. Always double-check the dimensions of a replacement battery against your old one to confirm a proper fit.
Can I use a car battery in my John Deere D105?
I strongly advise against using a standard car battery. While it might have the voltage, a car battery is much larger, heavier, and not designed for the vibrations of a small engine. The U1 lawn tractor battery is specifically built for this application. Using a car battery is a safety risk and will likely damage your mower’s battery compartment or electrical system.
How long should a battery last in my John Deere D105?
With proper care, a good quality battery should last between three to five years. Several factors affect its lifespan, including how often you use the mower, how you store it during the off-season, and whether you keep the battery terminals clean and tight. An AGM battery might often last on the longer end of that range due to its sealed, maintenance-free design.
How do I maintain my lawn mower battery?
For a standard flooded lead-acid battery, maintenance involves checking the electrolyte levels periodically and topping them off with distilled water if needed. You should also keep the terminals clean from corrosion. For an AGM battery, maintenance is much simpler as it is sealed. The most important thing for both types is proper off-season storage. I always remove my battery, give it a full charge, and store it in a cool, dry place away from concrete floors.
Why does my new battery keep dying?
If a new battery is consistently losing its charge, the issue might not be the battery itself. The most common culprit is the charging system on your mower. The alternator may not be generating enough voltage to recharge the battery while the engine is running. Another possibility is a parasitic drain, where something in the mower’s electrical system is drawing a small amount of power even when the key is off. It is a good idea to have the charging system tested.
Where can I find a reliable replacement battery?
You can find a great replacement for your John Deere D105 at several places. John Deere dealers will have the OEM part, which guarantees a perfect match. Major automotive stores, farm supply stores, and online retailers like Amazon also carry a wide selection of U1 batteries from various brands. When shopping online, just be sure to filter for the U1 group size and confirm the specifications match what you need for a dependable power source.