Dead Battery

[Grumpy Goat]

So, around a month ago I went out to my bike (2014 R1200RS) and tried to start it but it wouldn’t turn over, but had power to the display etc. I completed various tests after charging the batter and it appeared the battery was no good. 
I changed the battery started the bike and away I went for a ride, came home turned everything off. 
...

You changed the battery to what? Was it a new battery that was known to be fully charged? How long was the ride?

If your replacement battery was not fully charged and the ride was a relatively short one then maybe not enough charging would have occurred. Also, if the replacement battery was not new then who knows what may be going on.

When my battery was dying it would light up the dash but not have enough power to turn over the engine more than once, and eventually it would not even do that. It also would not hold any charge overnight. New battery fully charge solved that issue, and I have a few accessories but none that are live when the bike is off.