This is a high-performance replacement tablet battery for the AMAZON KINDLE D00511, guaranteed to meet or exceed the OEM specifications of your original. The tablet battery is 2.1 x 2.57 x 0.192 inches with an output of 3.7 volts. The chemistry is LI-ION at 1530mAH capacity. Manufactured by Empire Scientific, model number TLI-003. 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.