Garmin eTrex GPS Navigator Has Unlimited Battery Because of This

The Garmin eTrex Solar is a handheld GPS navigator that utilizes solar power to provide unlimited battery life when used in sunny conditions. The eTrex Solar is designed for outdoor enthusiasts like hikers, geocachers, and adventurers who need a simple, reliable GPS device with exceptional battery life.

• Unlimited battery life when used in bright sunlight (75,000 lux)
• Solar charging capabilities to keep the battery topped up
• Long battery life of up to 1,800 hours in expedition mode without solar
• 2.2″ high-contrast display easy to read in sunlight
• Multi-band GPS support for improved accuracy