Leave a Review Amperes 4
Great at testing chargers, but timer alert is off
I have found the app great at testing wireless charging, but with a few issues.
Others have mentioned that when testing, you get no indication how far along the testing is.
In addition, after clicking start., it can take awhile (enough to charge 5%) before the test actually starts running.
Lastly, it’s really important when comparing chargers to test them at the same battery % on the phone (since iPhones charge slower at higher %). There is a timer function to alert you when the battery hits a certain % to account for this. Unfortunately when I set mine at 30%, it alerts me at 26%. Not so helpful.Show lessJosiahKnight
Developer Response
Thank you for your review! Unfortunately you are correct about 5% and slow times. In iOS 17 Apple changed the way how they report battery charging to app developers. Instead of 1% increase it's now doing it every 5%. As a result, all tests are at least 5% slower than before. Battery percentage reported is also not correct. Its given in +- 5 from the real number.Works well despite limited / restricted OS functions
This is a very well-designed app, giving one accurate estimates of charge voltage and current, despite the limited-to-non-existent ability to directly read these metrics via iOS functions. As of iOS 17 (if not earlier) it works around these by polling for changes in battery charge level, in effect reverse engineering the voltage and current from those changes over time.Show lessnedgar
Never does anything
Click Start test and it just says “Starting” leave it there for 20 minutes never does anything. Tried multiple times, reinstalling app, restarting phone, everything I could think of to get it to work and different chargers too. Wireless and wired.. it’s always been this way even when I bought the app over two years ago when I had iPhone 11 Pro Max IR but I came back to try it again and still never does anything just “starting” .. This time with my iPhone 13 latest iOS 17 ..At least the free app worked sometimes if u let an ad runShow lessAllYourMacsAreBelongToUs
Developer Response
Hello. If you are running a slow charger or your battery is charged up higher than 85% while you are on iOS 17, test can take painfully long time to start / complete. When before Apple decided to change that functionality in iOS17, we needed your device to charge for 2% of the battery in order to give you correct calculations, now we need at least 10%!!! That’s huge difference. Unfortunately Apple declined all our attempts when we asked them to change it back. So now it either very slow or not at all :( Regards, Andre