The "Flat" extended life GPS battery works with the GL300 series GPS units, including the GL300, GL300VC and GL300W units
Extend the life of your GPS unit up to 2 months or more, depending on movement and ping rate
for maximum life and use with your GPS unit.
- "Flat" cell, 10,000 mAh rechargeable lithium ion cell battery pack
- Charging cable and adapter
NOTE: This maximum life battery must be used with the Large GPS case.