What contact points to use to measure battery voltage?
I have the battery of a Samsung Galaxy S7 (SM-G930F) in front of me and I want to test the voltage. I have a voltage meter (multimeter) and it would be very simple to do if the battery only had two contact points. These type of batteries are very complicated (for the unknowing and untrained) with several contact points. This particular battery has 8 contact points, 4 on each side of what looks like a plastic bit (or is it a chip?) in the middle of the connector.
Where is plus (+) and where is minus (-) on this thing?
Does anyone have a schematic on this type of battery connector?
I wonder how people determine where to place the test leads? By watching YouTube videos? I have also seen a couple of videos with people fiddling around the connector, on the battery side and on the motherboard side, seemingly unknowing where exactly to place the test leads. They seem to place the test leads all over the thing until they get a reading. It all looks highly unscientific. Not knowing where to place test leads could potentially cause a short circuit, especially if you're doing that on the motherboard side and with external power on, like I have seen some guys do it on YouTube. It's like sensing for the light switch in the dark, with crocodiles in every corner of the room.
Also, I wonder why "SN:" is printed on it without any numbers? This battery is supposedly a genuine Samsung battery that I purchased from a reputable seller, as a replacement for the original battery that came with the phone. (This phone has had its motherboard replaced once before by an independent service because I was unable to fix it myself by replacing the battery. Now it has the same problem again: it's not charging.)
Bu iyi bir soru mu?