Kindle inside a sauna sounds fun and relaxing but it might not be very good for your Kindle. Frankly I don't recommend using a Kindle in a sauna. because they are not designed for high heat or steam and using them in a sauna can damage it, especially the battery. But there are some safe tricks you can use to take it into the Sauna. But first you should know the risks - This will apply to all kinds of E-reader Why you should not use Kindle in a sauna? Kindles are designed to operate at 32 - 95 degree Fahrenheit (0 - 35 degree Celsius) and a sauna approximately ranges between 120 F to 195 F (50 - 90 degree Celsius) If you compare the sauna heat and what your Kindle's safe range, you'll see even a few minutes inside a sauna can harm your Kindle, which may lead to - 1. Battery damage High temperature can chemically degrade the battery and you'll later notice short battery life requiring you to charge y our Kindle more, in extreme cases it can even cause swelling or leaking ...