【Customer Service】Rest assured with 30 days Refund and 12 months Warranty; Note: Amazon return windows will close after one month, don’t worry about it, you can click on seller store on right corner “ask a question” and contact seller directly. 【Basic Details】Item Model: C21N1818-1; Battery Type: Li-ion; Voltage:7.7V; Capacity: 37Wh/4850mAh; Battery Color: Black. 【Compatible P/N 】C21N1818-1 0B200-03190800 2ICP7/54/83 M929-03KF( Note ：There are two battery type: C21N1818 and C21N1818-1. Please check your laptop's original battery before placing the order. These listing sells is C21N1818-1). 【Compatible Laptop Models】For ASUS VivoBook 15 F512DA F512FA F512FB F512FJ F512FL F512FL-BQ076T F512JA F512JA-AS34 F512JP F512UA; Vivobook 15 X512DA X512DA-BR7N4 X512DK X512FA X512FB X512FJ X512FL X512JA X512JF X512JP X512UB X512UA X512UF; VivoBook 15 R564DA R564FA R564JA R564JA-UH51T; VivoBook K512FA; VivoBook S512DK S512FA S512FB S512FL S512UA; VivoBook A512FA A512FB A512FL A512JA A512UF A512JP A512UA . 【Note】The package includes: 1*battery and 1*Instructions. Packaged by sponge or bubbles to prevent damage. Before purchasing, please open the back cover of the laptop to confirm the battery model and shape. Specification:
Model: C21N1818-1 ( NOT Compatible C21N1818 ) Color: Black
Voltage: 7.7V Capacity: 37Wh/4850mAh
Battery Type: Li-ion
Battery Condition: Brand New

Replacement Part Number for:
C21N1818-1 0B200-03190800 2ICP7/54/83

Compatible with Machines Model:
ASUS VivoBook 15 F512
ASUS VivoBook 15 X512
ASUS VivoBook 15 X512DA
ASUS VivoBook 15 X512DK
ASUS VivoBook 15 X512FA
ASUS VivoBook 15 X512FB
ASUS VivoBook 15 X512FL
ASUS VivoBook 15 X512FJ