Upgrade via replacement.
We wouldn't give you anything less than the best. Grade A cells chosen from among the top 10%. Rigorous inspection tests to ensure reliability. A built-in IC chip to prevent against short-circuiting. Complete NFC functionality. What does this all mean? In terms of quality, you won't find a better replacement. Don't just take our word for it, though - type in any quick, power-related search on Amazon and see who pops up. As the leader in our industry for the last 3 years running, we know batteries.
Samsung Galaxy NOTE 3 III, SM-N9000, SM-N9005, Verizon SM-N900V, T-Mobile SM-N900T, AT&T SM-N900A, Sprint SM-N900P