Product Review

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.

Compatible Models:
Samsung Galaxy S4, S IV, GT-I9500, GT-I9505, Galaxy S4 LTE I9506
Galaxy J
SGH-M919(T-Mobile)
SCH-I545(Verizon)
SGH-I337(AT&T)
SPH-L720(Sprint)
SCH-R970(U.S. Cellular/MetroPCS)
SGH-I337Z(Cricket)
Not for Galaxy S4 Active

Note
Using your phone in temperatures lower than 5°C may affect battery performance.
If you notice battery life dropping after a period of use, slipping two sheets of paper under the battery may allow a better contact between phone and battery.