What’s Important with a Solar Battery? 

If you have a HomeSun SolarService, we will take care of all things battery but, if not, here are some key things to bear in mind for a solar battery...

1. Size:

You’ll need to think about how large your battery needs to be. This depends on your electricity consumption patterns, the size of your solar panel system, and your goals (e.g., backup power during outages or maximizing self-consumption).  In general, the size and price are proportionally related. The more you want to store, the more expensive the storage you need.  

The power is expressed in kilowatt-peak (kWp) units which stands for the maximum output of energy that the system can produce. The larger the PV system and the higher the efficiency of the individual solar cells, the higher their output, and that larger the solar battery you will need. 

2. Battery Chemistry:

Different battery chemistries are available, such as lithium-ion, lead-acid, and flow batteries. Lithium-ion batteries are the most common choice due to their high efficiency, longer lifespan, and lower maintenance requirements. 

3. Lifespan:

Consider the battery’s expected lifespan. Lithium-ion batteries typically last 10 to 15 years or more, while lead-acid batteries have a shorter lifespan.   

4. Warranty

Check the warranty offered by the battery manufacturer. A longer warranty period provides peace of mind and indicates confidence in the product’s durability (if you are with HomeSun we will replace the battery free of charge, so you don’t need to worry about manufacturer warranties). 

5. Depth of Discharge (DoD)

Pay attention to the battery’s DoD, which indicates how much of the stored energy you can use. A higher DoD allows for greater energy utilisation but can affect battery lifespan.

6. Power Rating

The battery’s power rating determines how much electricity it can deliver at once. Consider your peak energy needs, especially if you plan to use the battery for backup power during outages.

7. Efficiency

Battery efficiency is important because it affects how much energy is lost during charging and discharging cycles. Higher efficiency means more of your stored energy is available for use.

8. Installation and Compatibility

Ensure that the battery is compatible with your existing solar panel system. The installation process should be straightforward, and it should work seamlessly with your solar inverter. 

9. Cost

Ensure that the battery is compatible with your existing solar panel system. The installation process should be straightforward, and it should work seamlessly with your solar inverter. 

10. Seller Reputation

Choose a reputable battery manufacturer or supplier with a track record of delivering reliable products and good customer support. 

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