People who do there reserch come here and post " Hi i am trying to do this, i have product 'A' and am trying to use it but am having problems! This and this is happening, Can someone help"
Others come here and go.
"Hi i am new and trying to do this, could someone please post a circuit and program for me to 'Help'" and then nomatter what someone says they tell you they tried it and did not work.
Then they repeat the same line above. It is very depressing as it indicates they just came here to get someone to do it all for them.
Now what did you think of the sujestion in post number 6 as i looked at the board and it does what you want 'Cuts off the power before the battery is damaged'.
Did you google the board model and see what others think.
When you post think of exactly what you want and describe it to the group.
EG. I am running an arduino with other boards attached and when the power begins to fail i would like it to first turn off the other boards then put its self to sleep.
Or
I want it to save all parameters and then disconnect from the power.
Or
I would like would like it to disconnect the power compleatly.
Help us to help you. At least describe your project and what you hope to achieve.
Daz