Built My Own Fast Charging Power Bank—Is It Safe? Anything suggestions？

https://preview.redd.it/iaqlcstxqlle1.jpg?width=3024&format=pjpg&auto=webp&s=c8368376388c1e29403918d28a92ced5e1aa3a2b https://preview.redd.it/s7o1tnkyqlle1.jpg?width=3024&format=pjpg&auto=webp&s=5320cf33adeaba4728d8ad9e8607c8fee5535a0b I just finished building my own fast charging power bank for my new iPhone, and I'm really excited about how it turned out! But I’m also a bit worried—can this setup be trusted with my phone? Is it safe enough, or should I be concerned about risks like overheating or damaging the battery?and I’m wondering—can this power bank be brought on a plane?