Check Iphone 4s battery cycles

Hi everyone. I just got my iphone back from repair. Ik had two complaints: it wouldn't connect to my speakerdock properly and the battery live suddenly decreased a fivefold, especially when using outside.

Now I got it back and I notice both problems are solved. I can also see thayt they replaced the connector. But is there any way to check whether they replaced the battery as well? Like a way to see the battery's age through a cycle counter or so?

Have done some googling but could only find advice for jailbroken iphones, which mine isn't.

thanks.