1150mAh Li-Polymer Battery for Garmin Nuvi 600, Nuvi 610, Nuvi 610T, Nuvi 650, Nuvi 660, Nuvi 660 FM, Nuvi 670, Nuvi 680 High Quality, high capacity, light weight rechargeable battery No memory effect. Can be charged or discharged as needed without loss of capacity. Overcharge protection, with built-in battery life microchip. Compatible Part #s: 361-00019-02, D25292-0000, 010-00540-70, 010-00455-00, 361-00019-06