How to Compare Solar Battery Warranties in Australia?


When you buy solar systems, solar batteries play a major role in them. The quality of batteries will make your solar power generation system effective.

On average, the solar battery storage solutions will last around five to fifteen years. Which factors will affect the durability? They are types of batteries, usage, maintenance, and the surrounding temperature.

When you compare different commercial solar products, one of the biggest factors you should consider is their warranty.

Remember, warranties are also of different types. Each type of warranty covers different things. Therefore, you should always make an apple-to-apple comparison before signing anything.

Here are a few important factors to consider while comparing solar battery storage warranties.

Period covered

Manufacturers of solar batteries mention the number of years they cover under the warranty. The chemical composition of the battery is one important factor. It affects longevity of the system.

Lead-acid batteries have a shorter life than lithium-ion batteries.

Hence, Lead-acid battery warranties cover a shorter period than lithium-ion batteries. Lead-acid batteries offer a warranty for less than 5 years. Whereas Lithium-ion batteries offer warranty for up to 10 years and more.

Warranty on inverters

The complete solar panel system is composed of three things- solar panels, batteries, and inverters.

Manufacturers extend the warranty coverage to the inverter. What is an inverter? This equipment changes the direct current stored in the battery to the alternating current electricity.

All home gadgets need only alternating current. Therefore, an inverter becomes an essential element.

Most of the batteries come with an in-built inverter. However, if the inverter is not included in the battery package, then you can purchase it separately from the same vendor or a different vendor.

When you purchase the inverter from a different manufacturer, it means that it will have a separate warranty.

So, before making any decision, it is essential to check whether the seller will include the inverter or not. If it isn’t included, then it is better that you seek advice from the vendor.

Charging cycle

One charging cycle means the full charging and discharging of the battery Commercial solar companies sometimes make the number of charging cycle processes the basis of warranty.

The warranty is an assurance that the battery performance will be excellent up to a certain number of charging cycles.

The battery type and its chemistry are vital elements of this warranty.

Lithium-ion batteries can withstand many processes before they degrade as compared to lead-acid batteries. This is the reason lithium-ion batteries offer warranties with a higher cycle count as compared to lead-acid batteries.

But experts say that it is difficult to evaluate the warranty based on charging cycles because the batteries get degraded with age.

Throughput warranty

Throughput warranty is the warranty based on the total power output of the battery throughout its life.

The “megawatt-hours” for each battery are calculated to determine the warranty period.

The throughput warranty is valid until the battery stores and delivers this megawatt-hour value.

The metric offered by the throughput warranty is more tangible and authentic.

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