Why does my iPhone 4S lose charge while locked?

I closed all apps running in the background and i also have the brightness at like 25% and i lock it and loses charge. Does this happen with every iPhone? Btw its a 4s. Also does using the iPhone 4S and playing games on it while its charging make its batter run out faster? I really need help.

Yes it is normal for it to lose battery life while locked as it is constantly conncting to the internet to push notifications to you (such as Facebook messages/emails etc.) You can lower the effect of this by turning mobile data off, however keep in mind you will no longer receive push notifications until you turn it back on or switch on Wi-Fi.

Also no, playing games while the unit is charging does not make the charge run out faster, it will just take longer for it to charge.

Hope this helps, and it is a problem with all smartphones!

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