Smavco Bundle 3000mAh 010-10517-00, 011-00955-00 Extended Battery for Garmin Gpsmap 276, 276C, 296, 376, 376C, 378, 396, 478, 478, 495, 496 Plus 12" Short Flat Micro USB Cable Capacity: 3000mAh/25.20Wh Dimension: 77.07 x 48.54 x 21.86mm Compatible Part no.: 010-10517-00, 010-10517-01, 011-00955-00 Compatible Models: Garmin 010-00543-00, 100054300, 3580100054300, EGM478 Garmin GPSMAP 276, 276C, 296, 376, 376C, 378, 396, 478, 478, 495, 496