Android battery pinout

You can query get all information Android has about your battery by executing

adb shell dumpsys battery

Then you will get an output like this:

Current Battery Service state:

  AC powered: false

  USB powered: true

  Wireless powered: false

  Max charging current: 400000

  Max charging voltage: 5000000

  Charge counter: 1363859

  status: 2

  health: 2

  present: true

  level: 51

  scale: 100

  voltage: 3833

  temperature: 190

  technology: Li-ion

I don't know how and if it is possible to get other details on the battery such as the type number (e.g. for buying a replacement). If you require such information I would check if there is a tear-down video e.g. on https://iFixit.com for your device that includes such information.