1. What is Series-Parallel Battery Configuration?

The series-parallel configuration combines batteries to increase both voltage (series) and capacity (parallel). This is commonly used in solar systems to match system voltage requirements while providing sufficient energy storage.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Series Voltage — Sum of individual battery voltages in series (V)
• Parallel Ah — Sum of individual battery capacities in parallel (Ah)

Explanation: Batteries in series add voltage while keeping capacity the same. Batteries in parallel add capacity while keeping voltage the same.

3. Importance of Proper Battery Calculation

Details: Correct battery sizing ensures your solar system meets power requirements, prevents over-discharge, and maximizes battery life.

4. Using the Calculator

Tips: Enter the total series voltage (sum of all batteries in series) and total parallel capacity (sum of all batteries in parallel). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I determine series voltage?
A: Multiply the voltage of one battery by the number of batteries in series (e.g., 3 × 12V = 36V).

Q2: How do I determine parallel Ah?
A: Multiply the Ah rating of one battery by the number of batteries in parallel (e.g., 2 × 100Ah = 200Ah).

Q3: What's the difference between series and parallel?
A: Series increases voltage, parallel increases capacity. Both increase total energy storage but in different ways.

Q4: Can I mix different batteries?
A: Not recommended. Use identical batteries in terms of voltage, capacity, age, and chemistry.

Q5: What about efficiency losses?
A: This calculation gives theoretical capacity. Real-world systems have 10-20% losses due to inefficiencies.