How long does a mower battery last? If you've got a lawn mower, it's key to know the battery's duration. In this article, I'll answer this question, discuss ways to extend your lawn mower battery's lifespan, and help you get the most value out of it. This knowledge will help you plan, budget, and keep your equipment running longer.
To understand how long your battery will last, you first need to know what kind of battery powers your mower.
What Types of Lawn Mower Batteries Are on the Market?
There are two main types of lawn mower batteries in the market:
- Lead-acid
Each type has its own pros and cons that affect how long they last.
Lithium-ion batteries are popular because of their high energy and power density, as well as long lifespan. These batteries are lightweight, virtually maintenance-free chemically, and provide consistent power throughout their lifetime.
Lead-acid batteries have been the choice for lawn mower batteries for years. They're affordable and reliable, but they require regular maintenance, which involves checking water levels and cleaning terminals. Although they're cheaper initially, lead-acid batteries don't last as long as lithium-ion batteries.
Still, what are the factors that influence how long a lawn mower battery lasts?
Factors Affecting Lifespan of Lawn Mower Battery
Lawn mower battery life expectancy is influenced by several important factors.
Battery Quality
The battery you choose affects how long it lasts. High-quality batteries are made with better materials and construction, so they last longer. Investing in a well-known brand and choosing a battery made specifically for lawn mowers can make a difference.
Usage Patterns
Using your lawn mower frequently and aggressively can affect the lifespan of your battery. If you mow large areas or often tackle tough terrain, your battery will be strained and may not last as long as it would with lighter use. Overusing the mower or failing to recharge the battery properly can shorten its lifespan.
Maintenance Practices
Taking care of your lawn mower battery is important. You should clean the battery terminals regularly to keep them free from dirt and corrosion. This will prevent damage and improve performance. Also, store and charge it correctly to make it last longer.
Temperature Conditions
The temperature affects how long your lawn mower battery lasts. Extreme temperatures, whether hot or cold, can disrupt the battery's chemical reactions, reducing its lifespan. Avoid exposing your battery to extreme temperatures to prevent damage.
Charging Habits
Charging your lawn mower battery incorrectly can also affect its lifespan. If you overcharge or undercharge, the battery cells can get damaged, reducing their capacity and lifespan. Follow the manufacturer's recommendations for charging duration and frequency.
| Battery Charging Comparison | Lead Acid | Lithium-ion |
|---|---|---|
| Can I damage a battery with incorrect use? | Always store battery fully charged. | Keep partially charged. Low charge can turn off protection circuit |
| Do I need to apply a full charge? | Fully charge every few weeks or months. Continuous low charge causes sulfation. | Partial charge better than a full charge |
| Does battery heat up on charge? | Gets lukewarm towards end of charge | Must stay cool or slightly warm |
Source: batteryuniversity
Overall Battery Health
Your battery's overall health impacts how long it lasts. Check for damage, like leaks or bulging, regularly, and fix any problems right away. Also, focus on how the battery performs and notice any changes that could mean it needs replacing.
How Long Does a Mower Battery Last
The average lifespan of a lawn mower battery is approximately 3 to 5 years, depending heavily on the battery type and maintenance.
Lead-Acid batteries typically last 2 to 4 years with proper care and regular maintenance, especially cleaning and checking water levels.
Lithium-Ion batteries have a longer estimated life, often lasting 5 years or more (some models up to 10 years), or 500 to 1,000 charge cycles, whichever occurs first.
The typical estimated life of a Lithium-Ion battery is about two to three years or 300 to 500 charge cycles, whichever occurs first.
Source: Newwark Electronics
Battery lifespans can vary across brands. So, it's important to do your research and choose a brand known for durable, long-lasting batteries.
Signs Your Lawn Mower Battery is Dead
- No sound or clicks when trying to start: This indicates there's not enough power to turn the engine.
- Slow engine crank or no crank at all: The starter motor struggles or fails to turn the engine over.
- Dim headlights (if applicable): Weak or flickering headlights suggest low battery power.
- Low voltage reading with a multimeter: A reading below 12 volts indicates a dead or dying battery.
- Old age: Lawn mower batteries typically last 3-5 years. If yours is older, it's likely nearing the end of its lifespan.
How to Test Your Lawn Mower Battery:
- Visual inspection: Check for corrosion or damage to the battery terminals.
- Charge the battery: If it is low, try charging it fully. If it won't hold a charge, it's likely dead.
- Use a multimeter: Measure the battery's voltage.
A good healthy lawnmower battery should register between 12.6 to 12.7 volts. Source: Warwick Batteries UK Ltd
Tip: If you're unsure how to test your battery, consult your lawn mower's manual or seek assistance from a professional.
Maintaining and Extending Battery Lifespan
Regular Cleaning and Maintenance Tips
Keep your lawn mower battery in good condition by regularly cleaning and maintaining it. Start by disconnecting the battery from the mower and using a dry cloth or brush to remove any dirt or debris. Avoid using water or other liquids, as they can harm the battery components.
Next, inspect the battery terminals for any signs of corrosion. If you see any buildup, gently clean it with a mixture of baking soda and water. Don't forget to wear gloves and eye protection when handling corrosive materials.
Replacing Your Battery? If your maintenance efforts reveal that your current battery is too far gone, you'll need to know if a new one is ready right out of the box. For a full, step-by-step guide on how to safely charge any new or old lawn mower battery, see our guide on How to Charge a Lawn Mower Battery.
Proper Storage Techniques for Off-Season Periods
- Lead-Acid Battery: Fully charge it before storing and consider using a battery tender to keep it topped up.
- Lithium-ion Battery: Keep it partially charged (around 40-60%) before storing.
Find a cool, dry place to store the battery, away from sunlight, moisture, and extreme temperatures. The ideal storage temperature for maximum longevity is typically between 40°F and 77°F (4 °C and 25 °C). It's best to remove the mower's battery and store it in a well-ventilated area.
Checking and Tightening Connections
Regularly check the connections between the battery and the mower. If the connections are loose or corroded, it can cause power loss or inefficient charging. Use a wrench or pliers to tighten any loose nuts or bolts, and ensure the connection is secure. If you see any signs of corrosion on the connections, clean them with a baking soda and water mixture. Put on a little petroleum jelly after you clean it to keep it from rusting again.
Ensuring Adequate Charging Patterns
It is crucial to charge your lawn mower battery properly to maximize its lifespan. Always follow the manufacturer's recommendations for charging duration and frequency.
Note: For detailed, step-by-step instructions on proper charging techniques for both new and old batteries, please refer to our full charging guide.
Responsible Battery Recycling and Disposal
When a lawn mower battery dies, it needs to be disposed of or recycled responsibly. This helps protect the environment and reduces the risks of battery waste. Plus, recycling allows us to recover and reuse valuable materials like lead and acid for other things.
Check with your local municipality or waste management authority to find out where you can recycle lawn mower batteries. Some communities have designated drop-off locations where you can safely dispose of your old batteries. You can also look into battery collection programs offered by retailers and manufacturers. They allow you to return your old batteries for proper recycling or disposal. By doing this, you can help promote responsible battery recycling and protect the environment.
Key Takeaways
To get the most out of your lawn mower battery and extend its life, keep these key points in mind:
Know Your Battery Type:
- Lead-Acid: Affordable, but requires terminal cleaning and checking water levels. Typically lasts 2–4 years.
- Lithium-Ion: Higher upfront cost, virtually maintenance-free, and offers a longer lifespan of 5+ years.
Charge for Storage: When storing for the off-season:
- Lead-Acid: Must be fully charged (and kept topped up with a maintenance charger).
- Lithium-Ion: Should be stored at a partial charge (around 40-60%).
Maintain Temperature: Both battery types are damaged by extreme heat and cold. Store your battery in a cool, dry place, ideally between 40°F and 77°F (4 °C and 25 °C).
Mind Your Voltage: A healthy, fully charged 12-volt battery should read 12.6V or higher on a multimeter. A reading below 12.0V means it is heavily discharged or damaged.
Regular Maintenance: Routinely clean battery terminals with a baking soda and water mixture to prevent power-draining corrosion.
Recycle Responsibly: Never throw away a dead battery. Utilize local municipality or retailer battery collection programs for proper recycling.
Conclusion
To keep your battery in good shape, monitor it, clean it, don't let it die or get overcharged, store it properly, and follow the manufacturer's instructions.
1 comment
My 3 year old Worx is suddenly not charging. What is wrong and what can I do?
Please help. I am 86 years old and not very active at present as I’ve hurt my hip.