The 5km solar energizer comes with an internal battery which has a two year factory warranty.
Features:
• Robust solar bracket and weather-resistant housing
• On/off TAG to switch the energizer on and off
• Battery charge state indicator
• Solar panel charge state indicator
• Deep sleep mode for battery safe mode storage
• Day/night sensor
• Star picket mounting
• Lightning protection
Specifications
• Energy: 0.47 Joules output. 0.55 Joules stored • 10 Watt solar panel included • Built-in solar regulator: Advanced MPP power management system