mason819 wrote:
i have a 2019 macbook pro with the intel chip (A2141) and it has no power or signs of life at all. ive held the power button, done smc reset, the charger cord works with my iphone, i have no other diagnostic capabilites. is there a way i can know if this is the logic board or battery?
Model identify <MacBookPro16,1> or <MacBookPro16,4>

If the Mac does not boot you options are obviously limited.
Why would you think battery was there an issue prior ...? If you are plugged in to power I would not think battery.
What I can say—the 2019 Intel 16" MBP has a higher than you would hope, logic board failures.
In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment
Make an appointment for a "hardware issue"
https://www.apple.com/retail/geniusbar/
Outside the USA
https://support.apple.com/en-us/HT201232
I would suggest a 2019 Intel Machine is most likely not worth the cost of repair going forward, esp out of warranty logic board replacement.
Apple is done with the Intel and moved on to their SoC M-series macs.