Iphone 4s won't charge after battery replacement

I replaced my iphone 4s battery as told on the directions. I turned the phone on and it worked with 45% on the battery, but it does not charge. I placed the old battery to check if it was the new battery that wasn't working but the same thing occurred. Please help me with solution or tips i did everything carefully and in order.

Looks like you need to replace your battery, take your phone to an authorized repair center and they will look into the details for you.