Why does my iphone battery go down when i talk on the phone?

I pay money to the phone company every month so why don't they keep the battery fully charged?

You have to pay the electricity company to keep the battery charged. Same thing happened to me!

There's a little battery light in the upper right hand corner that tells you when your battery is running low. When that happens, plug it in to the battery charger which the Electric Company charges. You pay for the signal that is transmitted so you can talk on the phone & use data.

The phone companies charge it over the airwaves, you can just ignore the battery low signal. Its clearly false.

  • Why running down my iPhone 5 battery so fast? We bought 3 weeks ago and we use it since few days and i seen that it ran down so fast. I thought that because of the internet and LTE because it always using for example weather ect. I blocked all connections and now using just 3G and now better but still run down fast:/ the phone's battery is the wrong or its normal?
  • Why is my iphone5 battery life going down every ten minutes? I had shut off everything and it's going down even faster? I tried resetting, closing all apps, and it still doesn't work? I disabled all of the apps and unnecessary apps. I don't know what is wrong.
  • Why is my Iphone battery going down while being charged? Well just last night I charged my Iphone 4 All night and woke up to it being at 28% . It shows that it's charging with the little lightning symbol in the right hand corner but it actually going down. Now it's at 24% and I'm not even using it? Could it just be my charger or my actual phone? If it was the charger I would think it wouldn't show the lightning symbol but it does. What wrong with it.
  • Why is my iphone battery going down when I charge it in my car? So I have a iPhone 6 and i have a 2015 Mustang and when i plug in the usb or use a car charger in the car it goes down instead of up i don't know why it keeps doing this but I can charger anywhere else in my house or anyone else's car and it charges but in my car it's not charging the battery just goes down while plugged in and I've had this car for about a month