app to show ELECTRICITY CURRENT IN (ampere)

I have the same requirement having come from using "ampere" on Android. It is useful when faced with a choice of charging cables and power sources. Everyone has more than one computer at home or work. Do they all provide the same charging current? Some third-party cables impede the current and so charging takes longer.

If anyone has come across a suitable app for IoS I would be grateful to know.

U r wrong mr. People who use I phone don’t no the depth so they can’t saw no value in that app. That app very valuable to me because I can monitor the volt and Charging phone with current amps allow us to calculate better understanding when phone will charge. In reality most phone including new one never charge at full rate which means if u have 2.0 amps charger phone will always charger around 1.2 at max rate. It will never reach at max speed. So ampere app in android very useful specially when u charging phone in car because car charger never go beyond more than 400 - 900 mA ever. If u ever drive so!

iPac007 wrote:

... when u charging phone in car because car charger never go beyond more than 400 - 900 mA ever. If u ever drive so!

I have a car power supply that has two outputs - both USB 5v, but one is a 1.2A port and the other is a 2.1A port. These are readily available at many stores and online sources. There are also many car chargers with 3A or 4A outputs.

So to say a car power port is restricted to no more than 900A is false - a car USB port may be (although not all - some cars do include USB ports with up to 2.1A output), but a car power adapter that plugs into a car power outlet is not.

And note that NONE of these things are chargers! They are power supplies, nothing more. They supply USB 5V power at various amperages. All Apple lithium battery powered devcies, like all industry standard SMART Lithium battery powered devices, self-regulate their charging cycles. You can get car and mobile power supplies that output USB standard 5V power at many different current outputs. Your iPhone or iPad will regulate current draw from that power supply by itself, up the maximum the device is programmed to draw.

The iPad's charger is rated at 10W. The output is 5V, so the current is 2A while it's charging.

Here's some battery/charging info.

The quickest way (and really the only way) to charge your iPad is with the included 10W USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.

Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.

How to Calibrate Your Mac, iPhone, or iPad Battery

http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/

At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html

Also, if you have a 3rd generation iPad, look at

Apple: iPad Battery Nothing to Get Charged Up About

http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/

Apple Explains New iPad's Continued Charging Beyond 100% Battery Level

http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- beyond-100-battery-level/

New iPad Takes Much Longer to Charge Than iPad 2

http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html

Apple Batteries - iPad http://www.apple.com/batteries/ipad.html

Extend iPad Battery Life (Look at pjl123 comment)

https://discussions.apple.com/thread/3921324?tstart=30

New iPad Slow to Recharge, Barely Charges During Use

http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html

Tips About Charging for New iPad 3

http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html

Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips

http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad

iPhone, iPod, Using the iPad Charger

http://support.apple.com/kb/HT4327

Install and use Battery Doctor HD

http://itunes.apple.com/tw/app/battery-doctor-hd/id459702901?mt=8

In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.

 Cheers, Tom 😉

Came across this old thread when searching for the same thing. Thought I'd reply in case with my solution in case anyone else stumbles upon it the same way and to counter the several ridiculous responses above ("best course of action is to purchase an Android phone"...seriously?!)

I tried several apps and didn't find anything worthwhile, so ended up purchasing one of these devices which aren't much more expensive then a mobile app anyway:

https://www.amazon.com/dp/B00J3JSEG6/

https://www.amazon.com/dp/B00J3JSEG6/

I got the 2nd one (the white one) though the first has slightly better reviews. There's a ton of them out there for around $10 though (I have no affiliation to any of these products whatsoever) so you may want to do a search to look at others. I came to the conclusion that a device like one of these is a superior and more reliable solution for testing, and diagnosing issues with, charging adapters and cables. Not just the cheap third party ones but the original Apple and MFI certified ones too as I've had plenty of both that have failed in the past. Hope this helps someone out.

There is a new app to show the charge - Amperes. Search the store for this name.

I doubt it. However, this should help you.

If it's important to you, your best course of action is to purchase an Android device. Personally, I see no value in such an app.