Why the cellphone battery provides some airport

I've a LG Optimus You (P500). To get at some point I'm curious about why the phone's battery provides some terminals. I'm informed of which a pair of terminals are usually for your confident and detrimental tips along with the the next connects on the battery's inside thermistor in order to observe it is heat range. Even now of which leaves us perplexed having just what exactly the fourth airport may be to get?

Curiously the cellphone provides merely some airport while your battery provides some. I've desired replies around Yahoo and google but no beneficial effects apart from description in relation to heat range following is available.

Furthermore considering yet another skepticism furthermore sits inside exact image, are usually vent that may be as well as as "A" inside subsequent image? It appears to me as plenty of type connector and the guess usually this can be a connector to a wire having which usually companies could admittance one thing serious around equipment. Your Nokia mobile phones which i possessed furthermore possessed the following feature and We guess the following should be common for all those cellphone subsequently.

Your battery product is definitely LGIP400N which is often used inside Optimus (GT540), Optimus You (P500), GM750, GW620. Your Universe Nexus has additionally some terminals, the fourth and yet another can be used for your NFC antenna (see Why may be the NFC inside Universe Nexus battery? ). It may be of which one of the styles comprises excess performance such as GN and simply just your battery received reused in your product (not switching your fourth terminal).

Anyone who has NFC for their mobile phones, could unfastened your NFC functions if they endeavor to substitute affordable and copy power packs which may not need your NFC antennae as mentioned the following.