Need a battery for a Magellan GPS device with the following model numbers: 400, 500, 600? BTI has you covered with our premium 3.7V, 1000mAh Lithium Ion battery. This product has been engineered to meet or exceed the original manufacturer's specifications and replaces the original Magellan part numbers A1175, MA348G/A. All BTI batteries are manufactured and tested under our stringent quality standards and come with an industry leading 12 month manufacturer's warranty. BTI... True to the original.