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. CE Certified. Capacity: 290mAh. Dimension: 29.50 x 24.30 x 4.80mm. Compatible with: Garmin Foretrex 401, Foretrex 405, Foretrex 405cx. Compatible Original Battery part no.: 361-00034-01. Note: Tools not included.