The Zoom H5 has two XLR inputs, and a 3.5mm stereo mini-jack input. Simply put, the XLR inputs are for larger microphones, such as the ones you’d use on a podcast, or shotgun mics, which are used to record dialogue in film.
The 3.5mm stereo mini-jack input accepts TS, or TRS plugs. Using the TS plug will give you a mono sound, which is only one track, and which will be present on the left-hand side. If you connect a TRS plug to it, the Zoom H5 will record a stereo signal.
According to Zoom, the H5 should be able to run for about 15 hours. Bear in mind that your mileage may vary, as certain variables, such as whether you’re using Phantom Power, can affect how long the recorder can go for.
There are many different variables which could potentially affect the battery life of the device, but the takeaway is that the H5 can record for hours at a time, and It’s always worth carrying some extra batteries with you, just in case.