ETX900-TSO-BB-TH-KIT STC Installation kit includes everything you need to install an EarthX battery in your certified aircraft. This kit does not include the battery. You only need to buy the kit for the initial installation.
ETX900-TSO-GB-KIT Gamebird STC installation kit includes everything you need to install an EarthX battery into your existing battery box. This kit does not include the battery and you only need to purchase it once for initial install.
