The battery is the standard 1420mAh Kindle Paperwhite EY21 battery (seems to be similar if not the same as the original one). Seller included screwdrivers and tools as well as a nice cute pendant, which I really appreciated. I recommend a proper metal tool to open the Kindle, you will struggle with the provided plastic bit, it is very brittle (as are all the plastic bits in my experience repairing phones). Overall, I highly recommend the seller, it was nice of him to include the tools you need and to add the cute pendant, that was a nice touch.