It's my first time designing a PCB and my first time posting to this website (so yeah, I'll be a bit of a mess). I've got a few questions regarding the pins labeled VTHERM and VTH_REF, a thermistor labeled RREF, and a Li-Ion battery, all shown at the right side in the image below.
My questions are:
1) How do I wire the two pins and the thermistor to the battery when the battery is drawn with 4 leads? Are there any 4 lead Li-Ion batteries? I've seen mobile phone batteries with 3 leads, maybe that's the case?
2) Do I need this whole Thermistor jazz if I'm expecting temperatures of around 40C during the day? Can I leave the pins NC?
3) Can this IC solution charge a Lithium Ion Polymer battery if it mentions it's designed for a Lithium Ion Battery?