Anker Nano Phone Charger, USB C GaN Charger 30W, PIQ 3.0 Foldable PPS Fast Charger USB C for iPhone 17 / 16 and more series, Galaxy, iPad, Compatible with MagSafe

i have a ton of Anker Nano's as they go on sale often. Are those fine?or is it preferable to have a 5v2a (i have some old Samsung that is those specs.Some of the ones linked here that have a permanent attached cable are 5V4a, 5v5a. Are those better? Output: 5.0V==3.0A / 9.0V==3.0A / 15.0V==2.0A / 20.0V==1.5A (30.0W Max) PPS: 3.3-11.0V=3.0A Max, 3.3-16.0V=2.0A Max (30.0W Max) https://www.amazon.com/Anker-Charger-Foldable-iPhone-Included/dp/B0B2MLRF93/