This is a high-performance replacement tablet battery for the AMAZON KINDLE FIRE 7" 5TH GEN S, guaranteed to meet or exceed the OEM specifications of your original. The tablet battery with an output of 3.7 volts. The chemistry is LI-POL at 2980mAH capacity. Manufactured by Empire Scientific. We offer a 1 Year Warranty with purchase. See this product elsewhere at a lower price? Call or email us; we have a Price Match Guarantee.