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Now that I had the update 21.3 my surge won't sync over to my app on my iPhone. On the app: It only says "looking".. And it say I have low batt, even tho it's just charged. So the problem is the app on my phone, and not really my surge..
Try restarting the Surge, if as you say the Surge isnt syncing then it has not been talking to the server and the battery level reported will be wrong.