My 2018 lasted 14 months. Always on the battery tender when sitting for more than a few days. I don't have any extra lights or stereo system taking extra power, changed all the lights to led's. Started getting iffy to start, dealer wanted to replace it with the same battery that has no warranty-really! Going down the optima path as that seems to give fewer problems. BTW, my 2016 that I traded still has the original battery and going strong. Not sure why these are not warranted for at least 2 years.
If you have that tiny motorcycle....no wonder...it doesn’t matter what you have or don’t have hooked up......upgrade to a full size car battery...
They put our exact GM motor in cars....they don’t use a motorcycle battery...