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1. (sorry about the typo I could not justify back spacing to correct the spelling when you know what I'm saying) so download and enjoy it's simplicity.Before this app my phone started only charging on very short cables, and it was so frustrating that my favorite 6 foot and 3 foot cables weren't registering with the phone.

2. All in all, a great app I wish I'd found sooner, thanks developers!I've been using the premium version of the app for years, and it's a valuable tool when dealing with possible charging/battery issues.

3. I have a note 4, its wireless charging caps out at approx 700 mA... The cable charging is at 2.1 amps (charger amperage) , or close to it in conjuction with a high quality sync cable despite the loss that's intrinsic.I've used this app for years.

4. I get that it might be unable to test the exact amperage, but it attempts to claim the amperage is the same whether using wireless charging or USB cable.

5. My suggestion would be to include a feature enabling the user to label and record sets of data, so when performing tasks such as I had been doing it is easier to remember which cords or adapters had the peak (or desired) output.

6. Some charging cables don't charge well anymore, and this app helps me figure out which cables are good, and which ones need to go to the trash.

7. I have noticed quite frequently that I will plug in a cable and it will show 120 amps, unplug it and turn it around and it will start charging at 1200.

8. The time to measure is a little annoying, but really only when you're testing multiple cords/ adapters in quick succession for peak performance.

9. sure their could be a couple of improvements what app is perfect? this app is solid and consistent, and over the years I've checked it with a couple different multi-meaters and found it to be simply accurate on most phones.

10. Runs smoothly.i have finally been able to sort through all my chargers and cords and can see why my phone has had intermittent performance.

11. seems to work well and is very useful for figure out which cables have issues and which power blocks are faulty.

1. Fix Ampere Not Working/Crashes/Errors/Unresponsive & Black/White screen:

1. Restart Ampere: Restarting the app will resolve most errors.
2. Update the Ampere App. Here is how:
   1. On Android goto PlayStore » Search for "Ampere" » Open Ampere » click "Update".
   2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Ampere » click "UPDATE".
3. Clear Ampere app cache: Clearing cached data will force your app to retrieve the latest data directly from Ampere servers.
   1. On Android, goto Settings » Apps » Select "Ampere" » click Storage » click "Clear Cache".
4. Check Ampere app permissions. If any of these permissions required to use your device's features are disenabled, Ampere might not work.
5. Uninstall and reinstall Ampere. If nothing else has worked, completely uninstall Ampere then reinstall.
6. Restart your device. Last, restarting your device can often clear most problems causing Ampere not working

2. Fix Ampere Server issues & Internet Connection

1. Check network connection: An unstable Internet will make Ampere be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
2. Disable VPN: VPN can cause connection errors and lead to Ampere not working. Make sure all VPNs are off
3. Enable background data: When Background data is turned off, Ampere may not be able to connect to the Internet when running in the background.