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5 Tips to Choose the Best Battery for a Solar Energy System

Purchasing solar storage batteries is a smart move for anyone with solar panels. This will help you achieve a solar power system that provides reliable electricity day and night.

You could utilize your solar panels better, by adding solar batteries.

image - 5 Tips to Choose the Best Battery for a Solar Energy System
5 Tips to Choose the Best Battery for a Solar Energy System

That said, it’s not advisable to spontaneously go to a store and buy a solar battery. There are various elements to consider such as capacity, efficiency, power, and even cost.

To help you choose the best solar battery, here are 5 tips you should consider, before buying one.

How Long Can A Solar Battery Last?

Let’s talk about how long a solar battery will last powering appliances in your home.

You want a battery that provides power throughout the night to help you enjoy the benefits of solar energy. To estimate how long a battery will last while powering appliances, look at capacity and power.

It is important to know that batteries have a depth of discharge (DOD) and most batteries cannot run at full capacity, but provide power to a certain level.

For instance, a 10kWh capacity battery could provide up to 9Kwh of power to run your appliances. You could add a solar battery to power your house through the night, running minimal appliances.

As you consider buying a solar storage battery, knowing a battery’s capacity and power will help you know how long it will last.

A Battery’s DOD also works together with its round-trip efficiency. This is the percentage of usable energy, from the total energy stored by a battery.

You might want to purchase a battery with a higher round-trip efficiency enabling power for longer, thus offering more economical value for your solar battery.

A Battery’s Lifespan

You wouldn’t want to buy a solar battery that will only provide service for a short time.

Solar battery lifespan is usually around 10 to 15 years. Part of this calculation is determined by a battery’s type and maintenance. One of the tips for buying the best battery is exploring the different battery types.

Please also consider the factors below, to further understand how long a solar battery will provide power.


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Capacity and Power

How much solar power do you need to store and how much can your household use?

This is an important question when you are considering the capacity and power of solar battery storage you want to buy.

You’ll need to know how much your solar panels can produce and how much you can use to know what capacity and power of a solar battery you require.

If terms such as kWh (which are used to measure power rating) are too complicated for you, please find a specialist who will help with the correct calculations.

Battery Type

You can choose between lead-acid, lithium-ion, and saltwater batteries, for your solar storage option.

Lithium-Ion Batteries

This is a high-performing lithium-ion phosphate LiFePo4 battery.

Considered the best option, these batteries are known for their performance and efficiency. Compared to others, lithium-ion batteries are lighter, have a higher depth of discharge (DOD), and a longer lifespan.

The only significant drawback of lithium-ion batteries is that they are expensive, so might not work with your budget.

If you are looking for quality lithium-ion batteries to couple with your solar panels, the smart battery from Moixa is a perfect choice.

Lead-Acid Batteries

These are the cheapest of all batteries you can obtain for a solar power system. Lead-acid batteries have been used for many years and prove useful when it comes to storing solar energy.

Lead-acid batteries are low-performance batteries with a low depth of discharge and short lifespan.

Saltwater Batteries

Saltwater batteries are newcomers to the solar battery industry. These use saltwater electrolytes and contain heavy metals. These batteries don’t last as long as lithium-ion options but have a higher depth of discharge than all other types.

Battery type also determines the maintenance needed, in order for a solar battery to maintain its lifespan. Lithium-ion batteries require zero maintenance, unlike lead-acid batteries.

Solar Battery Manufacturer

Many companies are manufacturing solar batteries, with several earning the top brand position. It is important you research the company you’re buying a solar battery from, mainly because of solar battery performance and lifespan

Battery warranties give you an idea of what to expect from a company, in terms of performance and lifespan. The smart battery from Moixa comes with a 10-year warranty, which could be extended if you join their Gridshare membership.

You might also want to look at the company’s track record in the manufacturing and service of solar storage battery variants.

Moixa is well-recognized all over the UK for providing high-quality solar battery storage. Our company is well versed in solar energy and offers one of the best services nationally.

We can install a fully working solar power system with quality solar panels and the best solar batteries.

If you are looking for the best solar battery to add to your solar power system, we have three, high-quality smart batteries at different capacities of 4.8kWh, 7.2 kWh, and 9.6 kWh to choose from.


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