New 3000 mAh Replacement Battery for Samsung Galaxy Note 4 EDGE 4G LTE (SM-N915 AT&T Sprint T-Mobile US Cellular Verizon) standard and original battery which is a backup for ur old battery. a real worth for money spent. samsung galaxy note 4 edge battery is 3000mAh Li-ion. it can last for a little more than 16 hours once fully charged