The warm summer breeze is a welcome sign, but it also marks the end of your lawn mowing season. As you put your trusty mower away for the winter, you might be wondering what to do with its battery. Proper storage is crucial for maintaining the battery’s health and ensuring a smooth start come spring. This guide will equip you with the knowledge you need to keep your lawn mower battery in top condition throughout the off-season.
A Short Overview of Lawn Mower Battery Storage
Storing a lawn mower battery correctly is about preventing it from experiencing detrimental effects like sulfation, corrosion, and deep discharge. These issues can significantly shorten the battery’s lifespan and lead to a frustrating start next season. This article delves into the best practices for storing your battery, whether it’s a lead-acid, lithium-ion, or AGM type.
1. Understanding Battery Types:
Before diving into storage techniques, it’s crucial to recognize the different types of lawn mower batteries:
1. Lead-Acid Batteries: These traditional batteries are commonly found in older mowers. They require more maintenance but are generally less expensive.
2. Lithium-Ion Batteries: Newer and more efficient, these batteries boast longer runtimes and require less maintenance. They are typically found in cordless lawn mowers.
3. AGM (Absorbent Glass Mat) Batteries: These batteries are a type of lead-acid battery, but they use a special mat to absorb the electrolyte solution, making them less prone to spills and more resistant to vibration.
2. Preparing the Battery for Storage:
Before you store your battery, it’s essential to prepare it properly:
2.1. Charge the Battery Fully:
The first step is to ensure the battery is fully charged. A discharged battery is more susceptible to sulfation, which can permanently damage its capacity.
Note: For lead-acid batteries, a charge level of 100% is ideal. However, lithium-ion batteries should be charged to about 80% for optimal storage.
2.2. Clean the Battery Terminals:
Dirt and corrosion on the battery terminals can hinder proper charging and discharging. Clean them thoroughly using a wire brush and baking soda solution.
2.3. Disconnect the Battery:
Always disconnect the battery terminals from the mower before storing it. This prevents accidental draining and ensures safety.
3. Choosing the Right Storage Location:
The environment where you store your battery plays a significant role in its longevity:
3.1. Cool and Dry Place:
Store the battery in a cool, dry, and well-ventilated location. Extreme temperatures can damage the battery.
3.2. Avoid Direct Sunlight:
Sunlight can cause excessive heat, which is detrimental to the battery. Choose a shaded or indoor location.
3.3. Prevent Freezing:
Freezing temperatures can lead to electrolyte expansion and damage the battery’s internal structure. If your storage location might experience freezing, consider bringing the battery indoors during the coldest months.
4. Storage Techniques for Different Battery Types:
The specific storage techniques vary depending on the battery type:
4.1. Lead-Acid Batteries:
- Regular Charging: Lead-acid batteries benefit from periodic charging during storage. Aim to charge them every 1-2 months to maintain a full charge.
- Trickle Charger: Using a trickle charger, designed specifically for lead-acid batteries, can help keep the battery topped off without overcharging.
- Storage Solution: Some individuals prefer to store their lead-acid batteries in a solution of baking soda and water. This helps prevent sulfation and corrosion.
4.2. Lithium-Ion Batteries:
- Optimal Storage Charge: Store lithium-ion batteries at around 80% charge. Avoid fully charging them as this can accelerate degradation.
- Avoid Extreme Temperatures: Lithium-ion batteries are more sensitive to extreme temperatures than lead-acid batteries. Ensure they are stored in a temperature-controlled environment.
- Regular Monitoring: While lithium-ion batteries are relatively low-maintenance, it’s advisable to check their charge level periodically during storage.
4.3. AGM Batteries:
- Similar to Lead-Acid: AGM batteries require similar storage practices to lead-acid batteries.
- Regular Charging: Charge them every 1-2 months using a dedicated charger.
- Trickle Charger: Using a trickle charger is a convenient way to maintain a full charge during storage.
5. Troubleshooting and Common Storage Issues:
Even with proper storage, you might encounter some issues:
5.1. Battery Won’t Hold a Charge:
If your battery struggles to hold a charge, it could be due to sulfation, corrosion, or internal damage. Consider replacing the battery if it’s showing signs of age.
5.2. Battery Terminal Corrosion:
Clean the battery terminals regularly to prevent corrosion and ensure proper connection.
5.3. Battery Leaking:
Leaking batteries are usually a sign of damage. Replace the battery if you notice leaking.
6. When to Replace Your Lawn Mower Battery:
Even with the best storage practices, lawn mower batteries have a finite lifespan. Consider replacing your battery if:
- Age: Batteries typically last 2-5 years, depending on usage and storage conditions.
- Reduced Performance: Noticeably reduced runtime or starting power could indicate a failing battery.
- Swelling: A swollen battery is a clear sign of damage and needs to be replaced.
7. Conclusion:
Storing your lawn mower battery properly is essential for ensuring its longevity and a smooth start next season. Remember to charge the battery fully, clean the terminals, and store it in a cool, dry, and shaded location. Choosing the right storage technique based on your battery type and monitoring its condition regularly can help extend its lifespan and minimize the need for premature replacement.
By following these simple steps, you can rest assured that your lawn mower battery will be ready to go when you need it, ensuring a worry-free mowing season every year.
Frequently Asked Questions
1. What type of batteries do lawn mowers typically use?
Lawn mowers typically use lead-acid batteries, also known as flooded lead-acid batteries. These batteries are common in various applications due to their affordability and reliable performance. However, they require specific care to maintain their lifespan and prevent damage.
Lead-acid batteries have a liquid electrolyte, which can leak or evaporate if not stored properly. Additionally, they can lose their charge over time, requiring occasional charging to ensure they’re ready for use.
2. Do I need to remove the battery from the mower for storage?
It is generally recommended to remove the battery from the lawn mower before storing it for an extended period. This prevents potential damage from moisture, corrosion, or accidental discharge.
However, if you’re confident in your storage environment’s dryness and temperature control, leaving the battery in the mower might be suitable. But always consult your mower’s manual for specific storage recommendations from the manufacturer.
3. How do I prepare the battery for storage?
Before storing your lawn mower battery, ensure it’s fully charged. A fully charged battery will have a longer shelf life and prevent damage from deep discharge.
Once charged, clean the battery terminals with a wire brush or sandpaper to remove any corrosion. Then, apply a thin layer of petroleum jelly or battery terminal protector to the cleaned terminals to prevent corrosion during storage.
4. Where is the best place to store a lawn mower battery?
The ideal storage location for a lawn mower battery is a cool, dry, and well-ventilated area. Avoid storing the battery in extreme temperatures, especially direct sunlight or freezing conditions.
A garage or shed with a stable temperature and low humidity is generally a good choice. If you’re concerned about moisture, you can store the battery on a shelf or in a plastic container with a lid.
5. How often should I check the battery’s charge during storage?
It’s advisable to check the battery’s charge every few months, especially during prolonged storage. You can use a battery charger or a multimeter to measure the battery’s voltage.
A fully charged battery should have a voltage of around 12.6 volts. If the voltage drops below 12 volts, you should recharge the battery to prevent deep discharge and potential damage.
6. Can I store the battery in a charged state indefinitely?
While storing a battery in a fully charged state is generally recommended, it’s not a guarantee against deterioration. Over time, even a fully charged battery can lose its capacity and eventually need replacement.
The ideal storage time for a fully charged battery is around six months. Beyond that, the battery may start to lose its charge, even if stored properly.
7. What should I do if my battery is damaged or doesn’t hold a charge?
If your lawn mower battery shows signs of damage, such as swelling, leaking, or corrosion, it’s best to replace it. A damaged battery poses a safety hazard and may not be able to hold a charge effectively.
If the battery doesn’t hold a charge even after being fully charged, it might be nearing the end of its lifespan. It’s generally a good idea to replace batteries that consistently fail to hold a charge to ensure your mower starts reliably.