Battery Capacity Formula:
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The 10 kWh Solar Battery Calculator helps determine the ampere-hour (Ah) capacity of a solar battery system when you know its voltage. This is essential for proper solar system sizing and component selection.
The calculator uses the battery capacity formula:
Where:
Explanation: The formula converts energy capacity (kWh) to charge capacity (Ah) by accounting for the battery's operating voltage.
Details: Knowing the Ah capacity is crucial for matching solar panels, charge controllers, and inverters to your battery bank. It helps prevent overcharging or excessive discharge.
Tips: Enter the nominal voltage of your battery system (typically 12V, 24V, or 48V for solar applications). The voltage must be greater than zero.
Q1: What's the difference between kWh and Ah?
A: kWh measures energy capacity (power over time), while Ah measures charge capacity. Voltage connects these two measurements.
Q2: What are common voltages for solar batteries?
A: Common voltages are 12V, 24V, and 48V for residential systems, with higher voltages used in commercial installations.
Q3: How does this relate to battery bank sizing?
A: The Ah capacity helps determine how many batteries you need in parallel to achieve your desired storage capacity.
Q4: Does temperature affect capacity?
A: Yes, battery capacity typically decreases in cold temperatures. The calculator shows nominal capacity at standard conditions.
Q5: Should I account for depth of discharge?
A: Yes, for actual usable capacity, multiply the result by your desired depth of discharge (typically 0.5-0.8 for lead-acid, 0.8-0.9 for lithium).