Test iPhone 4s hardware without battery. Possible?

[iMore Question]

So, I have this iPhone 4s, which was broken. So i replaced the screen. While I was replacing it, I accidentally broke the black wire that connects the battery to the motherboard. So I dont know if it works, and I dont want to spend money on new battery if the screen doesn't work. I also want to test the motherboard, since I replaced the screen because the old one showed blue vertical lines. So I need to be sure both screen and motherboard is functioning. Can you test it somehow without battery?

 

[Honey Beagle]

Maybe plug the phone into a wall plug socket. That possibly might work.

 

[Rob Phillips]

Maybe plug the phone into a wall plug socket. That possibly might work.

I don't think the phone will power up without a battery, not even if it's plugged in.
OP, your best bet is to bring it into an authorized service center and have them look at it.

 

[pttptppt]

It might work. I remember my old BlackBerry Z10 would work without a battery if it was connected to the outlet