I’ve seen a few users on here and other forums, social media and in person who don’t understand iOS 12 Battery statistics. So hopefully this post will help. This first screenshot gives you the detail for the last 24hrs (no matter how many times you charge it). The red box shows when it was last charged and to what percentage. As you can see i had mine on charge today which i will explain later. The highlighted Activity and Screen On/Off times show the total of the last 24hrs, again regardless of times on charge in that period. The next screenshot shows the apps that used the most battery in that 24hr period, again regardless of charging. This third screenshot shows how to see, hour by hour, how to understand the statistics. Click on one of the bars highlighted by the arrow and you will see the following: What the charge level was (No.1) The total amount of activity as a bar chart. This is both screen on and background activity with the screen off. Dark blue is screen on light blue is screen off. (No.2) The total time the screen was on (No.3) The total time the screen was off but the phone was doing something. (No.4) Also a list of apps in order of what was using the battery the most being at the top. In this next screenshot you can see indicated by the top arrow that the phone was on charge. If you look closely you can see there are two sets of bars. One for the battery charge (which is going up) and another showing how long it was on charge for. In this case circa 30mins of the 1hr time block. The second arrow shows the screen on/off time as normal and the amount is also circled. Th final two arrows at the bottom will also tell you that although in use they were connected to a charger whilst being used. Finally in the last two screenshots the stats are slightly different. The battery usage tells you how much you used for a single day. But also your average screen on off time over the period and which apps used the most on average. Clicking on a day will then break down for you the apps that consumed the most battery and the level of screen on/off time for that single day. Hopefully this helps people understand how to read the statistics to work out what is/isn’t draining their phone battery. I wouldn’t pay much attention to a single day unless something is highlighted as drastically draining the battery. I’d look at at least a 72hr period but ideally a week to see the biggest drain.