Replace your Magellan Maestro 4000T Battery or Keep an Extra Battery on hand as a backup. This is a High Capacity 1100 mAh Lithium-Ion Battery that offers even more up time than your original.  Works in your Magellan Maestro 4000T GPS.  Simple, Easy and Inexpensive!  You get a New Battery, FREE Special Tools (necessary for installation), a Helpful Installation Video, AND You also get a full ONE YEAR Money Back Guarantee exclusively when you purchase from us!

• 1100 mAh Replacement Battery for Magellan Maestro 4000T - Extended Life
• 37-00030-001, E4MT181202B12, MX0708

Replace your Magellan Maestro 4000T Battery or Keep an Extra Battery on hand as a backup. This is a High Capacity 1100 mAh Lithium-Ion Battery that offers even more up time than your original.  Works in your Magellan Maestro 4000T GPS.  Simple, Easy and Inexpensive!  You get a New Battery, FREE Special Tools (necessary for installation), a Helpful Installation Video, AND You also get a full ONE YEAR Money Back Guarantee exclusively when you purchase from us!