In the future i plan to start using lipo batteries but I still need to learn and do my homework. I have a few questions regarding the meaning of circuits I find online. TP4056 datasheet is great and details how to wire the chip, but I don't like the example schematic for the dw01 datasheet. Refer to typical application circuit on page 5: vcc and gnd pins are connected to battery terminals on the left (theres a picture of a battery). And then the wires go to very right of the schematic and its written batt + and batt - .. wasn't the battery logo already implying this?? I really don't understand this. It looks like there are 2 batteries on this diagram..
Also, on this typical circuit, we can see CS pin (2) of dw01 is connected to batt -, but Ive read its supposed to be connected to ground instead. And then, the left side of the mosfet connects to the negative terminal of the battery logo? This doesnt make sens, it looks like the mosfet is connected to battery negative on the left and on the right, so its not controlling anything! It should be connected between batt- and ground, not batt- and batt-. What am i missing?
Lastly, i cant tell what we mean by ground. Is ground connected to all the project in that case, like the arduino, etc Id be using, or just the power input like a usb cable I would use to charge the lipo cell?
Thank you for your great help.