Please ensure both model and battery part number are matched with your device.- Compatible Model: GARMIN-ASUS 01000846, GarminFone, nuvifone A50, - Compatible Battery Part Number: GARMIN-ASUS 07G016004146, 361-00044-00, SBP-21, TCE2110104709376, - RoHS approved for toxic free.- CE and ISO9001 Certificate for quality assurance.