100% COMPATIBLE – Fully compatible with Garmin GPSMAP 276c, GPSMAP 276, GPSMAP 296, GPSMAP 495, GPSMAP 478, GPSMAP 378, GPSMAP 376c, 010-00543-00, 100054300, 3580100054300, EGM478 FULL 2200mAh CAPACITY - Capacities listed by competitors are often far lower than promised. Our Li Ion satnav battery has a true, guaranteed capacity of 2200mAh, offering long runtimes with fewer charging breaks - exactly as advertised SUPERIOR QUALITY – Founded in 2004, our batteries undergo extensive, unrivalled testing by our Germany-based in-house quality management team to ensure each one we sell meets our high expectations HIGH-PERFORMANCE SPECS – Capacity: 2200mAh Voltage: 7.4V Cell Technology: Li Ion GPS battery with short-circuit, overheating and overvoltage protection - for runtimes that match or exceed that of your original battery for a high number of charging cycles THE SUSTAINABLE CHOICE – Replacing your device’s battery is the smarter, cheaper, eco-friendlier choice over buying a whole new one. Give your sat nav a second life while cutting your environmental footprint in the process