This recently happened to my 2015 e-golf. No warning. I spent some time on subs for battery sizing and watched battery replacement videos. Flawless victory! I feel very lucky that it 1. I had just returned home from work when the alerts lit up, 2. my OBD dongle was still good (did I really need it?), 3. I had the tools and there are no ICE parts to work around, and 4. I’m competent enough to do this.
true. it didn’t die, per se, but i def didn’t want to drive/tow it until i made an attempt to fix it.