Does anyone know if there is a fix for the Tandem App which constantly disconnects on a daily basis?? I asked for help on this over a year ago and basically get no answer other than sorry. 
and weāre working on it.
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Hey Jim. Well the good news is the app is a toy for the x2 itās not necessary, so I get why itās a pia but at least you not using mobi which requires a phone. Hereās what doctor Google thinks I believe the battery management notes are plausible.
Android-Specific Optimization
- **Disable Battery Optimization (Crucial):**Androidās āBattery Saverā mode often kills background apps. Go to Settings > Apps > Tandem App > Battery and set it to Unrestricted or Donāt Optimize.
- Allow Background Data: Ensure the app can run in the background. Go to Settings > Apps > Tandem App > Data Usage and ensure Background Data is enabled, and Restrict app background data is disabled.
- Clear Cache: In the app settings, clear the cache to remove temporary files that might interfere with connectivity.
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And I also wanted to note that mobi connectivity is awesome not only are disconnects infrequent, but when I charge mobi while Iām in the shower it reconnects to my phone in seconds. Tandem clearly has a bug or reception issue with x2. Good luck 
Jim @cathmets , supplementing what @Joe wrote, I will add that IN MY OPINION, the signal quality of my two years old t-Slim is much less effective than it was with my two earlier t-Slim.
Have you plugged in to Tandem Source recently to see if your pump has updates? When my t-Slim was rather new, the battery would drain very quickly; a plug-in long enough to do an upload fixed that issue [I think that service automatically does a system check], and since I upgraded to OS 7,10.3 I havenāt noticed any disconnect on my Galaxy S2 35TH there than when I left it in the car.
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Hello Joe. The app may be a toy but it shows alot more information that I need from time to time if not daily. I have reason to believe the first option you showed to āDisable Battery Optimizationā and set it to donāt optimize may have worked!! Iāll see after about a day though.
Thanks so much for your help as this has been bugging me for many years now. . . 
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I will do this next as well just to give it a tryā¦..
Thanks
I did not mean to disparage the app, and Iām sorry for that. I do hope the system settings improve your experience and Iām always glad to help!
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Yeah. For many years the FOSS apps had this problem because of the changing rules in Android. Itās part of the āmy battery lasts longerā battle between Apple and the Android world, but because Android is distributed different implementations (e.g. Samsung) do different things. AAPS used to have a ādo not kill my appā popup!
Disabling battery optimisation helps, but my understanding is that it should be done on a per-app basis. For us having the battery last a decent length of time is important and if that kills a few SM apps (facebook, twitter, LINEā¦) thatās probably a good thing.
What I do is to go into the Android settings (which, of course, change with every micro-release) and find the app settingsā¦ Iām using Android 15 on a OnePlus; Samsungs have many proprietary features, open Settings, find āAppsā, notice that āBatteryā is immediately below that.
Click on Apps/App management (i.e. Apps then App managment), scroll down to the t:slim app (same for any other app, xDrip+, AAPS etc), click there, then:
Click āBattery usageā:
Allow background activity: Allow all background activity.
This should gray-out āoptimize battery useā; you want that. There may be other things t:slim needs; I was quoting from AAPS but xDrip+ (which I also require because it connects to my iCGM) is the same.
The counterpoint is that every other app on your phone should have āallow background activityā turned off_, with the possible exception of āGoogle Mapsā for the āFind my Pancreasā option.
The way I look at it is that itās my Pancreas and I donāt want someone interrupting it; Iām considering the Mobi (at the behest of my Endo) so Iāve very interested if it does not work.
The other general approach, well worth doing is this (again, this is Android 15 on a non-a-Samsung phone):
o Settings/Battery (same syntax as before; the ā/ā means next step).
o Scroll down, observe: A list of apps by battery usage. Check the settings on every single one until you get to the t:slim app and either uninstall that app or cancel itās ability to drain the battery (the first is easier).
On my āphone AAPS uses, currently, 46.85% of the battery followed by apps that I use every day interactively and then, eventually, xDrip+ (which reads my G7 and has amazingly low battery usage, wish I could write software like that!)
Sc
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Oh no, and no need to apologize! This seems to be working much better now!! Thanks so much for the info!!
Thanks Dennis. The Tandem Source shows : Control-IQ+ (7.10.2)
Software is up to dateā¦.. does that look correct?
Jim, mine is showing 7.10.3
I did update my software to accept the latest Libre in case I decide to change my choice of CGM