Wish I had your knowledge mate

The bolts end up going in, its just a little effort for it to do so.
The tech guy I spoke to at the dealer suggested that my lack of maintenance (not putting it on a tender or charger while not riding it) may have been a contributing factor. Even the manual says not to let is sit for even 2 weeks without charging! Must be a very low quality battery since I have never had to touch any battery in the 15 years of owning bikes.
I explained to him that once the BMW dealership tightened and tested the battery, it went great for 24 hours. I started and stopped the bike 5 times with no issue then the next day its gone beserk again. I'm guessing I wont have the bike for a while and the cost for this will be huge! He didnt sound confident when we spoke yesterday