700mAh Battery for Garmin forerunner 205, forerunner 305, 361-00026-00 NEW 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 Models: Garmin Forerunner 205, Forerunner 305 Compatible Part #s: 361-00026-00.