Battery Overheats and Quickly Discharges

My phone died and when charged it would not turn on after leaving it overnight. I took it apart and tested the battery ribbon cable and it read no voltage. I took the battery apart and measured at the battery terminals and it read 3.6v. I can read accross the ribbon cable and battery terminals and it looks like both sides of the ribbon cable have a positive voltage.

I bought a new battery and it powered up fine, but quickly got very warm and started to die very quickly. I plugged it in, powered it off, and left it overnight. I was not able to turn it on the next day. The new battery does now not ready anything accross the sides of the ribbon cable end. I havn't taken this battery apart yet.

Does this mean that the phone is damaging the ribbon cables (drawing too many amps) from a bridge in the phone itself. Any ideas?

Thanks