Thanks for the replies, I hadn’t seen the review about the charger getting hot.
Might have to invest in a clamp meter in the future… I’m more curious than anything.
Out of the country at the moment so can’t take more photos/measurements.
During the discharge cycle the energy is converted to heat and this heats up the charger. This heat also goes into the battery. Nothing to be worried about. What you can do is place a small fan blowing over the charger to dissipate the heat.
You can find pictures of the S4+ internals and you can see the component which converts the energy to heat, it is attached to a heatsink in the top section of the device (two large ones for the outside slots maximum 1A discharge and two smaller components in the middle for slots 2-3 maximum 500mA discharge).
The test capacity is high, and there is a high probability that it is fake
30Q 1.5A charging will feel a little warm, but not hot. It may be a fake with too high internal resistance
You can take a close look at the negative pole of the battery and remove the PVC from the place covered by the PVC. There will be a letter on the negative pole of the battery. This is the sign of samsung battery,
If there is no such mark, it is fake,
You can send some battery photos to me for identification, including all angles