My iPad keeps going flat when it's plugged into a TV

While riding, FulGaz does have a higher battery use than some more passive apps. If you are using an Apple Lightening-to-AV adaptor with your iPhone or iPad, it is always worth plugging the lead that charges your device into the HDMI adaptor so that your iPad or iPhone is charging while you are riding.

The adaptor (Apple branded adaptor highly recommended) isn't just a lead and a couple of plugs, it contains a small microchip that does a lot of video processing as well and draws quite a lot of power.

For older iPads and iPhones, this is particularly important because they are designed to run more slowly to save power, this can reduce video playback performance and cause other issues.