Garmin Nuvi 660FM Battery with Tools - Replacement for Garmin GPS Navigator Batteries (1500mAh, 3.7V, Lithium Polymer) Replacement Garmin Nuvi 660FM Battery with Tools Replacement for Garmin GPS Navigator Batteries with 3-Pin Connector Quantity: 1 Battery, 1 Tools Kit, Lifetime Warranty Capacity: 1500mAh, Upstart Battery Brand On Sale for a Limited Time!