The 15Ah LiFePO₄ cell is one of the best choices for powering solar street lights. With excellent safety, high capacity, and long cycle life, it is ideal for 12W to 40W solar lighting systems. In this guide, we’ll explore its specs, benefits, pricing, and best applications.
🔋 What is a 15Ah LiFePO₄ Cell?
A 15Ah LiFePO₄ (Lithium Iron Phosphate) cell is a rechargeable battery with a nominal voltage of 3.2V and a capacity of 15 ampere-hours. It’s widely used in solar applications due to its safety, long life, and consistent performance.
⚙️ Technical Specifications
| Parameter | Details |
|---|---|
| Nominal Voltage | 3.2V |
| Full Charge Voltage | 3.65V |
| Capacity | 15Ah |
| Energy | 48Wh per cell |
| Cycle Life | 2000–4000+ cycles |
| Max Discharge | 1C–3C (15A–45A) |
| Weight | 400g–600g |
| Size | ~150mm x 70mm x 25mm |
✅ Key Benefits
- Long lifespan: 5–10 years of use
- Safe and thermally stable chemistry
- Compact and high energy density
- Low self-discharge rate
- Supports high current loads
- Eco-friendly (no cobalt)
💡 Use in Solar Street Light Systems
When used in a 4-cell series configuration (4S1P), the result is a 12.8V 15Ah battery pack (192Wh). This setup is ideal for street lights between 12W to 40W and provides 10–14 hours of runtime.
Need more backup? Use 4S2P = 12.8V 30Ah = 384Wh.
🛠️ Practical Tips for Integrators
- Use a quality BMS for protection (overcharge, discharge, temp)
- Use 14 AWG or 12 AWG copper wire for connections
- Choose cells with consistency in internal resistance
- Use aluminum or ABS enclosures for battery protection
💰 Pricing and Availability
In India, a single 15Ah LiFePO₄ cell costs around ₹250–₹400 depending on brand and grade. Popular brands include EVE, CATL, and Lishen. Available through local battery suppliers or bulk from China (Shenzhen, Guangzhou).
📦 Where AUTIGO Uses It
At AUTIGO, we use 15Ah LiFePO₄ cells in multiple product lines such as:
- Solar Street Lights (12W–40W models)
- Solar Flood Lights
- Custom OEM solar lighting solutions
🔌 Sample Configuration
- Battery Pack: 4S1P (12.8V, 15Ah)
- Charging Voltage: 14.6V
- Max Discharge Current: 15A
- Recommended BMS: 4S 20A LiFePO₄
If you’re looking for a reliable, long-lasting, and safe battery cell for your solar street light, the 15Ah LiFePO₄ cell is a top-tier choice. It offers outstanding performance with minimal maintenance. For bulk purchase or OEM support, connect with AUTIGO Solar Manufacturer today.
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