1. What Is DoD? (Simple Explanation)
Depth of Discharge (DoD) = how much battery capacity you use
👉 Example:
100Ah battery → use 80Ah → DoD = 80%
2. Why DoD Is Critical for Buyers
DoD directly affects:
- Battery lifespan
- Usable energy
- ROI
👉 Higher DoD = more usable energy
3. LiFePO4 vs Lead-Acid (Key Difference)
| Battery Type | Recommended DoD | Impact |
|---|---|---|
| LiFePO4 | 80–90% | High efficiency |
| Lead-acid | 50% | Limited usable energy |
👉 Same capacity, lithium gives almost double usable energy
4. Real Cost Insight (Very Important)
Example:
- Lead-acid 10kWh → usable 5kWh
- Lithium 10kWh → usable 8–9kWh
👉 You need fewer lithium batteries
5. Buyer Decision Tip
👉 If your system cycles daily → choose high DoD battery
👉 If backup only → DoD less critical