How to store inverter battery when not in use

  • Post last modified:12月 7, 2022
  • Reading time:9 mins read

An inverter battery is a device that changes direct current (DC) to alternating current (AC). It is used in devices that require AC power, such as computers, lights, and refrigerators.

Inverter batteries come in a variety of sizes and voltages. The most common types are lead-acid, lithium-ion, and nickel-cadmium.

Why do you need to store the inverter battery properly?

Batteries are an important part of any power system, and proper storage is essential to maintaining their performance and longevity. 

Here are a few reasons why you should take care when storing your inverter batteries:

1. To prevent damage from heat and cold. Extreme temperatures can damage batteries, so storing them in a cool, dry place is essential.

2. To prevent discharge. If batteries are stored for too long without being used, they can discharge and become unusable.

3. To prevent corrosion. Batteries can corrode if they’re not stored properly, which can shorten their lifespan.

4. To maintain safety. Improperly stored batteries can pose a safety hazard due to the risk of fire or explosion.

How can you properly store your inverter battery?

The average lifespan of an inverter battery is 3-5 years. However, with proper care and maintenance, some batteries may last up to 10 years. Some useful ways to store inverter batteries are:

1. Charge 100%

One of the most important aspects of taking care of your inverter battery is to ensure it is charged fully before storing it away for extended periods.

When lead-acid batteries are left in a discharged state, sulfation can occur. This is when lead sulfate crystals build up on the battery plates, which reduces the battery’s capacity and can eventually kill it. By charging the battery to full before storing it away, you can help prevent sulfation from occurring.

Related: Step by step process of charging a battery with solar panel

2. Store it in a cool & dry place

As we all know, batteries are an essential part of our lives. They power our phones, laptops, and even some cars. 

But have you ever wondered why it’s so important to store your inverter battery in a cool and dry place? 

Here’s why:

1. Batteries discharge faster in warm weather. So if you live in a hot climate, keeping your inverter battery in a cool place is especially important.

2. Warm weather can also damage batteries. Heat causes the chemicals inside the battery to break down faster, reducing the battery’s lifespan.

3. Moisture can also damage batteries. If your battery is exposed to moisture, it will corrode and eventually stop working altogether.

So there you have it! Three good reasons to store your inverter battery in a cool and dry place.

3. Unplug Unnecessary wires:

Your inverter battery is one of the most important parts of your off-grid solar system. With it, you would be able to store energy from your solar panels to use at night or during a power outage.

Related: Learn the process to connect solar panel with battery

But did you know that you need to unplug your inverter battery when you’re not using it?

Here’s why:

If you leave your battery plugged in, it will slowly discharge. Even if your inverter is turned off, it’s still using a small amount of power to stay connected to the battery.

This discharge can damage the battery, shorten its lifespan, and decrease its capacity over time.

When you’re not using your solar system, it’s best to disconnect the batteries completely. This way, they’ll be fresh and ready to go when you need them again.

4. Drain electrolyte

Batteries are one of the essential parts of an inverter system, and it is important to take care of them properly to maintain optimal performance. One key part of battery maintenance is ensuring that they are properly stored when not in use. This means draining all the electrolytes out of the battery before putting it away.

There are a few reasons why this is important:

It prevents the battery from corroding while in storage.

It helps to prolong the life of the battery by preventing sulfation.

It ensures that the battery will be ready to go when you need it, as a fully charged battery is required for optimal performance.

So if you’re looking to get the most out of your inverter system, be sure to drain all the electrolytes out of your batteries before storing them away.

5. Regular Maintenance

If you have an inverter battery that you’re not using, it’s important to do some regular maintenance to keep it in good condition. This includes charging the battery regularly, cleaning the terminals, and storing it in a cool, dry place.

Failure to properly maintain an inverter battery can lead to a shortened lifespan, reduced performance, and even complete failure. So if you want to get the most out of your inverter battery, make sure to take care of it!

Should we switch off the inverter when not in use?

Inverters are essential to any solar power system, converting DC power from the solar panels into AC power that appliances and lighting can use. However, many people need to be made aware that it is recommended to switch off the inverter when it is not in use. There are a few reasons for this:

1) Inverters can consume a significant amount of power when left on, even if they are not used. This can add up to a significant increase in your electricity bill over time.

2) Inverters can generate a fair amount of heat when they are left on, which can shorten their lifespan.

3) If there is a power outage, leaving the inverter on can strain the battery, causing it to drain faster than it would otherwise.


Finally, ensure your inverter battery is stored safely whenever it’s not in use. By taking care of your batteries, you can extend their useful life beyond the typical 7–10 years and safeguard your initial investment.