2. Is the phone new? If yes, it might still be learning your usage patterns hence it's draining faster than normal.
3. You can run a diagnostic test through the Device Care app or though the Support button here in Samsung Members.
4. As long as the charging cable is of good quality, it should be ok. Don't buy cheap and knock-off cables because those are made from sub-par materials and may do more harm than good. I've been using branded cables, even if they're more expensive.
Thanks for letting us know us here your inquiries and keen interest to upgrade your phone to Samsung Galaxy A53.
In addition to our dear Samsung member star summeRamirez' replies, please find below.
Samsung launched the Galaxy A53 5G in March 2022 with Android 12 onboard and promised to release four major Android OS updates to the device. Then in 2022, Samsung released the Android 13 update while it received the latest One UI 5.1 update earlier this year 2023.
Should you need further assistance and guidance, you may contact us via our Samsung Customer Care support channels below.