I've been told that different charging sources charge my phone at different rates, and have been told that some car chargers act at a normal USB rate instead of a rate closer to an AC outlet.

When I plug into my car charger, is there a way for me to see at what rate my battery is recharging? My phone is an HTC Evo.


Battery Indicator Pro will tell you or you can go into Settings -> About -> Battery and look there.


The System Panel app has a nice historical chart of battery usage so you can see how quickly it charges as well as how long it takes to drain.


If you're looking for the actual current draw of electricity coming in to your device, the app Ampere will display this. Note that it may require some tweaking for certain devices.


CurrentWidget does the trick for me.

  • Which one? There's lots of battery widgets. – ale Nov 13 '10 at 14:48
  • the one called "currentwidget" did the trick for me. – Dan Nov 18 '10 at 2:10
  • Haha, you should probably edit to clarify as "The app "Current Widget" in the market..." – kcoppock Nov 19 '10 at 18:12

You can check the amount of current(in mA) passing to your device via some applications like:

These apps are available for free on Google play store. They will tell you with what rate is your phone charging.

For example:-

If they show less than 500 mA then the device is charging slowly and may take a lot of time to be charged. But if it shows more than 1200 mA then that's good. For my device I get 1600mA.

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