I thought this should be mentioned, fsi6 has two voltage regulators and we should use this one nearest to radio module . My radio is powered by 1x 18650 battery , while tested it was charged to 3.9V, Elrs and esp are powered from regulator shown on picture above . These are voltages outputted by this regulator while using elrs tx :
10mw - 3.3v
25mw - 3.25v
50mw- 3.10v
100mw- 2.85-2.90v
Probably using 4xAA battery results will be better.
I thought this should be mentioned, fsi6 has two voltage regulators and we should use this one nearest to radio module . My radio is powered by 1x 18650 battery , while tested it was charged to 3.9V, Elrs and esp are powered from regulator shown on picture above . These are voltages outputted by this regulator while using elrs tx :
10mw - 3.3v
25mw - 3.25v
50mw- 3.10v
100mw- 2.85-2.90v
Probably using 4xAA battery results will be better.