Solar power has become a top choice for Australian homeowners looking to reduce energy costs and environmental impact.
An equally important part of this transition is solar battery which ensures your home runs both efficiently and sustainably.
While these batteries benefit us by storing excess energy generated during the day for later use, many people overlook the importance of maintaining these silent powerhouses.
Did you know a well-maintained solar battery can last for years while neglecting it can lead to early failure and reduced efficiency?
However, just like any other valuable investment, with the right practices, you can dramatically extend the lifespan of your solar battery, making your investment worthwhile and ensuring optimal performance year after year.
Whether you’re a solar enthusiast or just beginning your journey as a new user, this blog’s proven solar battery maintenance tips will help you get the most out of your batteries.
Ready to unlock its full potential and make your solar battery last longer?
Let’s dive in and explore some simple yet proven maintenance tips to maximize your solar battery’s lifespan!
The Ultimate Guide to Solar Battery Lifespan: What to Expect?
People often become overwhelmed by the wide variety of options available in the energy market while purchasing solar batteries. With sleek, eye-catching designs, it’s easy to get caught up in aesthetics without thinking about lifespan and performance.
However, important questions arise, such as: How long do solar power batteries last? How to buy the best solar battery storage in Australia?
Well, in Australia, most solar batteries have a lifespan ranging from 5 to 15 years, depending on the type of battery and its usage.
Among different types of solar batteries, the two main types of solar batteries commonly used in Australia are lithium-ion batteries and lead-acid batteries,
Now, let’s see how each battery represents different characteristics in terms of longevity, performance, and maintenance:
Lithium-Ion Batteries: The Leading Choice for Australians
Lithium-ion batteries, such as the Tesla Powerwall and LG Chem RESU, are increasingly popular due to their high efficiency of 90-95% and incredibly long lifespans, ranging between 10 to 15 years.
Their sleek, compact designs and minimal to zero maintenance are the other reasons that make them ideal for Australian homes and businesses.
Lead-Acid Batteries: A Traditional Reliable Option
Lead-acid batteries are traditional batteries that are less commonly used today. However, flooded and AGM battery types are still in use, particularly in off-grid systems, due to their reliability and cost-effectiveness.
These batteries typically last 5-7 years and require higher maintenance than lithium batteries.
Also, their reduced depth of discharge, which varies around 50% to 60%, and low-efficiency rating make them less appealing to residents who want long power backup.
So, should you choose a lead-acid battery for solar storage?
However, despite their unsatisfactory features, lead-acid batteries have good sides. They are recyclable and temperature adaptive.
They can be used repeatedly and withstand extreme temperatures, which makes them suitable for Australia’s scorching summertime.
Now let’s have a look at the table in the next part that outlines maintenance tips according to different battery types used in solar energy systems in Australia.
From Lithium to Lead-Acid: How to Maintain Your Solar Battery Based on Type?

Proper battery maintenance isn’t just about longevity; it’s about optimizing performance and ensuring your home stays powered by the sun, no matter what weather you are currently living in.
So, here are some essential differences in solar battery care depending on type:
Battery Type: Lithium-Ion Batteries
Maintenance Tips for Lithium-Ion Batteries
- Monitor Charge Cycles: To maximize battery lifespan, it’s best to keep charge levels between 20% and 80%.
- Temperature Control: Install batteries in a temperature-controlled environment, ideally between 10°C and 30°C optimal temperature.
- Regular Visual Inspection: Check the battery status, voltage levels, and other important metrics using the battery management system (BMS).
- Avoid Deep Discharge: Prevent regular discharge of the battery below 20%.
Key Things to Focus:
- Lithium-ion batteries are more flexible with charge cycles and require less frequent maintenance.
- This battery chemistry makes them sensitive to extreme temperatures, especially during Australia’s extreme mid-summer heat.
- Smart systems help in optimal battery management, so remote monitoring can be performed on a routine basis to ensure the best outcome.
Battery Type: Lead-Acid Batteries
Maintenance Tips for Lead-Acid Batteries
- Clean Battery Terminals Regularly: To keep the battery terminals clean or rust and corrosion-free, use a mixture of baking soda and water.
- Check Water Levels: While using flooded lead-acid batteries, periodically check water levels and refill with distilled water.
- Temperature Monitoring: Keep the battery in a cool area with optimal temperatures ranging from 20°C to 25°C.
- Avoid Overcharging: Prevent your battery from reaching full capacity every time. Use a charge controller to prevent overcharging, as this can damage lead-acid batteries.
Key Things to Focus:
- Lead acid batteries are more susceptible to corrosion, especially in coastal or humid areas.
- Only flooded lead-acid batteries require this high maintenance. AGM and GEL batteries can function properly with moderate level maintenance.
- Overcharging & Overheating can reduce the battery storage capacity and shorten lifespan.
Battery Type: Gel Batteries
Maintenance Tips for Gel Batteries
- Check Charge Settings: Ensure the correct and suitable charging voltage for the Gel batteries.
- Temperature Control: Like all batteries, Gel batteries should be kept within recommended temperature ranges to prevent overheating.
- Regular Inspections: Perform daily routine checkups on the battery’s health to identify early signs of wear or tear.
- Avoid Vibration: Excessive vibration can damage the battery’s internal components, so secure the battery to prevent shaking.
Key Things to Focus:
- Gel batteries are sensitive to overcharging and require specific charging parameters.
- Store in a cool, dry location and avoid exposure to high heat or freezing temperatures.
- Though these batteries are designed for deep discharges, prolonged deep discharges will shorten their life.
- Gel batteries are sealed and less likely to spill but still need to be kept in stable environments to avoid damage.
Overall, lithium-ion batteries need the least maintenance and are ideal for those looking for convenience and long-term reliability.
Whereas lead-acid batteries require more frequent attention but are still a cost-effective option, especially for off-grid applications.
Apart from these two, Gel Batteries have the advantages of being sealed and resistant to spillage, but they still require monitoring to ensure they’re charged correctly and not overcharged.
Truths About Solar Battery Maintenance: How Often is Enough?
When it comes to solar battery maintenance, how often is enough to ensure peak performance and longevity?
The answer isn’t one-size-fits-all, as it depends on several factors, including battery size, type, usage, and environmental conditions.
But rest assured, regular checks and a few simple maintenance practices can go a long way in keeping your system efficient.
However, here’s a general guideline:
- Quarterly or semi-annual routine checks should take around 30 minutes to an hour each time. Inspect the battery for any visible damage, corrosion, or leaks.
- An annual deep cleaning of the battery area ensures no dust or debris is blocking the ventilation. Depending on the system’s complexity, this maintenance could take 1 to 2 hours.
- It’s a good idea to have a professional technician inspect and service the battery system at least every 3–5 years.
It will take 2 to 4 hours, during which they’ll check the battery’s overall health, update any software if needed, and ensure optimal performance.
Is Your Solar Battery Failing? Signs & Symptoms Saying It’s Time for Upgrade!
As your device’s battery ages, you may start to notice signs that it’s degrading. But what are those? Are you curious to know them all? Keep reading and find it out!
So, here are key signs and symptoms indicating your battery is degrading:
- Your battery drains faster than usual.
- Takes longer charging time to reach full capacity.
- Turns off unexpectedly, even with a charge remaining.
- The battery heats up quickly during use.
- Battery percentage keeps fluctuating. Surprisingly, the charge level jumps up or down so frequently.
- The battery’s performance slows down, causing the device to lag or freeze during use.
- Receiving frequent alerts on battery health or low capacity.
These symptoms often point to a battery nearing the end of its life. This will notify you early, reducing extensive damage and maximizing your savings.
Top 7 Maintenance Practices for Long-Lasting Solar Batteries!

1. Regularly Check Battery Charge Cycles
Every time a solar battery discharges and recharges, it undergoes a complete cycle. However, the more cycles a battery goes through, the shorter its lifespan becomes over time.
In Australia, where solar energy systems are used year-round, it’s crucial to monitor how long energy can be stored in a battery and the battery’s charge cycle to ensure it’s operating within its optimal range.
So, what’s the optimal range?
Well, for regular use, keep the battery’s state of charge (SOC) between 20% and 80%. Avoid discharging below 20% and overcharging above 90%, as they significantly reduce battery life.
2. Ensure Proper Temperature Management
Australia’s climate, with its diverse regions ranging from scorching hot summers to freezing winters, weather and seasons pose a particular challenge for solar battery systems.
How Temperature Affects Solar Batteries?
Temperatures above 30°C to 35°C can cause the battery’s electrolyte to degrade faster, reducing capacity and lifespan. However, any temperature below 0°C can lead to performance issues, lowering overall battery efficiency.
Therefore, maintain the optimum temperature range between 20-60 degrees for the best result.
In Australia, many branded batteries like Tesla Powerwall 3 have built-in thermal protection systems, which include sensors to monitor cell temperatures and actively cool the battery mitigating the risk of thermal runaway.
3. Keep Battery Terminals Clean and Free from Corrosion
Corrosion on battery terminals is a common issue in solar energy systems, particularly for lead-acid batteries.
Building rust and corrosion on the battery can obstruct the flow of electricity and decrease the performance of your solar battery. In some states of Australia with high humidity, such as coastal areas, this problem can be even more pronounced.
Best Battery Cleaning Tips:
- Inspect the battery terminals regularly for signs of greenish or white patches, cracks, or swelling.
- Ensure proper tightening of terminal connections to avoid loose connections, which can also lead to power loss.
4. Optimize Your Solar Battery Usage
In Australia, the effectiveness of your solar battery will depend mainly on how well it integrates with your solar panel system and how you manage to use it.
Therefore, to maximize self-consumption and reduce electric bills, try to use stored energy during peak hours.
Also, to increase battery longevity, aim for a partial discharge of around 50% rather than letting it fully discharge.
5. Monitor Battery Health with Regular Inspections
To identify any potential issues early, keep track of your solar battery’s health regularly.
In Australia, some battery manufacturers offer remote monitoring services. These services allow you to check the performance of your batteries remotely through user-friendly online apps.
What to Look For?
- Voltage levels: Regularly monitor the voltage levels of your battery. A sharp drop in voltage can be a sign of malfunction.
- Temperature readings: Check the temperature meter readings from the apps regularly to ensure they stay within the recommended range.
- Performance reports: Review the performance data from monitoring software to spot any significant drops in efficiency or irregular patterns.
6. Invest in Professional Maintenance
While there are many things you can do to maintain your solar battery yourself, it’s wise to invest in professional maintenance services.
Australian solar installers often offer comprehensive maintenance packages that include regular checks, cleaning, and performance optimization.
Why Choose a Professional Expert for Solar Battery Installation?
Professionals can identify potential issues you might miss and offer solutions. Also, many battery warranties require professional installation and maintenance checks to remain valid.
By addressing minor issues early, you can avoid expensive repairs or replacements later.
7. Store Your Battery Correctly During Off-Season
The best time to install solar batteries might vary from state to state, but if you don’t use your solar battery for an extended period after installation, it’s essential to store it correctly to avoid damage.
Best Tips for Battery Storage
- Fully charge the battery before storing it, but do not overcharge!
- Store in a cool, dry location away from direct sunlight or extreme temperatures.
- Check the battery periodically (every 3-6 months) to ensure it’s still in good condition.
Take Care of Your Solar Battery for Maximum Efficiency

Maintaining your solar battery is crucial for ensuring that it continues to provide reliable, efficient performance for years to come.
By following these proven tips, such as monitoring charge cycles, maintaining optimal temperature levels, and keeping terminals clean, you can significantly extend the lifespan of your battery and maximize your solar investment.
Remember! With the right care and attention, your solar battery can serve you for many years, reducing your dependence on the grid and contributing to a more sustainable future for Australia.
So, ready to get the most out of your solar system? Read our Solar Emporium’s Guide and see the visible difference it makes!
You can also contact Solar Emporium for more info. Our expert team is always there to provide you with the best solutions for your energy needs.