Can you do a couple of power tests for me?
First, make sure you have
https://github.com/joel16/VITAident installed. Then do each of the following sections and record your data.
Control
Make sure the battery is charged to 100%. Quit all apps and be at the bubbles screen. Take a rubber-band and put it around both thumbsticks so it is constantly sending input to the Vita and prevent it from entering sleep state. Set a timer for 2 hours, once the timer goes off, open VitaIdent and record the battery information (percent remaining, capacity, capacity remaining, etc).
Now charge the battery to 100% again. Quit all apps and press the power button once to enter sleep mode. Set a timer for 2 hours and record the percentage remaining.
Finally, charge the battery to 100% again. This time turn the power off (hold the power button and choose power off). Set a timer for 2 hours and record the percentage remaining.
USB Drive
Making sure you charge the Vita to 100%, do the same steps but this time with a USB drive (not SD card reader) inserted and mounted with VitaShell.
SD Card Reader
Making sure you charge the Vita to 100%, do the same steps but with a USB SD/microSD card reader with a card inserted and mounted with VitaShell.
===
At the end you should have 9 results (3 for each section). Please post them here once you get it. If possible, do the whole thing multiple times so the data is more reliable.
Right now I'm getting significant power usage from my adapter and I'm not sure if the problem is specific to my chip or it's a problem with the Vita (my hypothesis).
Thanks.