I have this old Samsung Galaxy Tab 3 10.1 (GT-P5210) with LineageOS 14, and it still works perfectly fine for Internet, YouTube and Twitch. But it still has the stock battery, which is going flat pretty fast by now. Now replacing the actual battery seems pretty straight forward, but obtaining one isn't. There are so many brands out there. I ran into this for example: https://www.amazon.nl/XITAIAN-Verva...GT-P5210/dp/B07HQFGTY4/ref=asc_df_B07HQFGTY4/ Would that be trustworthy, or should i go for an original?