Ampere

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With Ampere, users will be able to monitor in real time the recharge rate of the battery and the efficiency of the cable. Read more about Ampere  

Depending on the outlet used to recharge your device, the time that you have to wait for the process to finish can vary. For example, the regular USB outlet from your computer will output a maximum of 5V and 500MAh.
 
On the other hand, most phones today use different voltages for the recharging process, so it’s always good to see if you can use a particular charging method or charger with your device, without damaging the battery.
 
The application is not perfectly accurate, but it’s accurate enough so that users can understand just how good a charger really is or if the cable used is up to standard. Ampere has support for most modern devices and batteries.