Hi Pawel,
I don’t know the android partition size. I’m not using that tablet at this moment to check.
The battery life is decent, not great. It’s about 4-6hrs depending on various settings. I mainly only turn on WiFi, 50% brightness w/ battery saver on. I split my usage to approx. tablet mode (40% of the time) and with keyboard dock (60%).
Again, like I mentioned before, there’s a few minor things I wish they would correct. Occasionally the trackpad behaviour is the only issue I really have. Sometimes the trackpad is very erratic. Try moving in any direction, it goes elsewhere. Only fix is, either to undock and dock keyboard OR press pwr button to go into standby/sleep and press pwr to turn on. Keyboard also could have been made of aluminum, but then it would cost more.
Just an FYI, i emailed Teclast (direct from their website for assistance) but they don’t have really good cust service. It’s been 2 months without any response.
Otherwise, I’m super happy