Key terms of energy storage system -- Battery Power

A battery’s power is how fast it can be charged or discharged. You can find the related information in the product datasheet.

For example, in the datasheet of AlphaESS SMILE B3, the battery max. charging/discharging current is 1C which means it can discharge all its usable energy in 1 hour.
As for another battery of AlphaESS, M38210-S, the max. charging/discharging current is 0.5C, which means it can discharge all its usable energy in 2 hours. (Make the max. charging/discharging current divide 1, you will get the charging/discharging time; or you can simply refer to the chart below)

A higher power home battery system doesn’t mean it’s better than a lower one as your own household’s energy usage needs will determine how much power you require from a solar battery and the best energy storage solution for you.