a LiPo rechargeable battery. An 900mAh battery weighs less than a 9V
alkaline battery, and will run a [TeleMetrum](../TeleMetrum) for hours.
+[ThisA document](InsertSheet.pdf) contains notes about how to install a
+flight computer such as TeleMetrum in a rocket.
+
By default, we ship TeleMetrum with a simple wire antenna. If your
electronics bay or the airframe it resides within is made of carbon fiber,
which is nearly opaque to RF signals, you may choose to have an SMA connector