Hey @Hardusb,
I came across your thread, and while it’s a bit old, I hope it’s alright to ask for some advice. I’m currently facing a similar issue.
I recently bought a 300W Gizzu power station along with their 100W solar panel, but I’m finding that it charges quite slowly. I’m considering using the USB-C port for charging as well.
Would you recommend an mppt controller or going with the buck converter? Please assist.
Hope you're doing well! I’d really appreciate any guidance you can offer. Thanks so much!