Information regarding the upcoming Galaxy A90 is pretty scarce. We know only one thing so far - it will have a pop-up camera of some sort and an almost all screen front. We can now add the battery piece to the puzzle. According to a source with a decent track record, the smartphone will have a smaller battery than its less expensive siblings, the Galaxy A50 and A70. The A50 has a 4,000 mAh unit while the A70 is expected to come with a 4,400 mAh battery. According to the report the Galaxy A90's battery will have the model code EB-BA905ABN and 3,610 mAh capacity. That might be its...