🔋 Introduction
In solar energy systems, batteries are used every day.
So the key question is:
👉 How long will the battery last in real operation?
📊 Typical Cycle Life in Solar
| Battery Type | Cycles |
|---|---|
| LiFePO4 | 4000–6000 |
| Lead-Acid | 300–800 |
📅 Lifespan Calculation
Example:
- 1 cycle/day
- 5000 cycles
👉 Lifespan ≈ 13–14 years
🔍 What Affects Solar Battery Life
1️⃣ Depth of Discharge
Higher DOD = shorter life
2️⃣ Temperature
Heat reduces lifespan
3️⃣ System Design
Proper sizing extends life
⚡ Real Insight
Poor system design can:
👉 Reduce lifespan by 30–50%
💡 Best Practices
- Use 70–80% DOD
- Ensure ventilation
- Use high-quality batteries