1. What is Solar Battery Capacity?

Solar battery capacity measures how much energy a battery can store, typically expressed in ampere-hours (Ah). It's calculated by dividing the total energy in watt-hours (Wh) by the battery voltage (V).

2. How Does the Calculator Work?

The calculator uses the solar battery capacity formula:

Where:

• \( Solar\ Wh \) — Total energy in watt-hours
• \( Solar\ V \) — Battery voltage in volts

Explanation: This conversion allows you to determine how many hours a battery can deliver a certain current, or how much current it can deliver for a certain time.

3. Importance of Capacity Calculation

Details: Knowing your solar battery capacity is essential for proper system sizing, ensuring you have enough stored energy for your needs, and preventing battery damage from over-discharge.

4. Using the Calculator

Tips: Enter solar energy in watt-hours and battery voltage in volts. Both values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between Wh and Ah?
A: Watt-hours measure energy (power × time), while ampere-hours measure charge (current × time). Ah is more useful for battery sizing.

Q2: How do I find my solar system's Wh?
A: Multiply your solar panel's wattage by the peak sunlight hours it receives daily.

Q3: What's a typical solar battery voltage?
A: Common voltages are 12V, 24V, or 48V for home systems, depending on system size.

Q4: Why is battery capacity important?
A: It determines how long your system can run without sunlight and affects the overall system efficiency.

Q5: Can I use this for lithium-ion batteries?
A: Yes, the formula works for all battery types, but depth of discharge limits vary by chemistry.