Woke up to dead battery

So I’ve been using my LW1 everyday for months now and this morning I woke up to leave and I see that it’s completely dead. Even tho I had about 30% percent charge. Could this be because of the 12v?? Should I replace it? It’s over 3 years old. Not sure what to do but I can’t go to work until I get it turned on again. Any help is appreciated. Ride safe yall!