Hi
If I saw this I would be alarmed too but not to worry because you shouldn’t be
The reason why the chip isn’t there is because different battery manufacturers have different ways of designing and managing their battery’s I have had iPod touch screens that look completely different and perform nearly identical to the original(apart from small colour differences)
But to sum it all Up I wouldn’t be worried unless you plug it in and it doesn’t work but that’s rare and it will probably work really really well!
Hopefully I answered your question
Thanks:)