[Discuss] Raspberry Pi low voltage indication

[Murray Strome]

I am running my Raspberry Pi 3 with power from a 3A powered USB 3.9 bar 
and it is the only device connected to it.  Frequently, the power light 
is red and there is a yellow lightning symbol at the top right.  3A 
should be enough, shouldn't it?  From what I have read, 2A is supposed 
to be sufficient. I am wondering if there is something I could look into 
or change that would help this situation. The temperature typically runs 
between 52 and 64 deg. C., which is supposed to be OK.


Thanks for any suggestions.

Murray