Choosing the correct cable size is essential for safety and efficiency in solar battery systems.

Why Cable Size Matters

Incorrect cable sizing can cause:

• Voltage drop

• Overheating

• Energy loss

Basic Calculation Principle

Cable size depends on:

• Current (A)

• Cable length (m)

• Voltage system

Example

For a 48V system with 100A current:

• Short distance → 25mm²

• Medium distance → 35mm²

• Long distance → 50mm²

Best Practice

• Always oversize slightly for safety

• Use high-quality copper cables

• Ensure proper insulation

Correct cable selection improves system stability and lifespan.