Solar-powered street lighting is one of the fastest-growing applications for deep cycle batteries globally. With over 100 million solar street lights installed worldwide, the market for reliable solar street light batteries continues to expand rapidly.
Why Solar Street Lights Need Special Batteries
Solar street lights operate a unique duty cycle: deep discharge every night followed by partial daytime recharge. They face temperature extremes (-20C to +45C), limited ventilation, and remote locations where maintenance is expensive. A standard automotive starting battery would fail within months.
VRLA AGM: The Cost-Effective Default
- Sealed, maintenance-free — no watering
- Install in any orientation
- Vibration and shock resistant
- Wide temperature range (-20C to +50C)
- Low self-discharge for seasonal use
- Cost-effective for budget projects
LFP Lithium: Premium for Long-Term Projects
- 5-8 year warranty versus 2-3 years for VRLA
- 10+ year design life versus 3-5 years for VRLA
- 95% round-trip efficiency versus 85% for VRLA
- Smaller, lighter for equivalent capacity
Battery Sizing Formula
Capacity (Ah) = LED Power (W) x Hours x Days / (Voltage x System Efficiency x Allowable DoD)
Common Configurations
- 6V 200Ah VRLA: 30-60W LED street lights
- 12V 100Ah VRLA: 60-100W LED street lights
- 48V 50Ah LFP: 100W+ LED premium systems
For solar street light battery specifications: sales@chisen.cn
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