MotoXImage
Husqvarna
AA Class
I've had an Earth X in my 449 for at least 5-6 years. It still does the job. But I recently dropped $300 on a new Harley Davidson lithium battery for the ol Electra Glide. I was sold by the holder to adapt it perfectly into the existing battery box.
It sure cranked the bike up nicely, but I've been too busy to take it out for a proper ride. Within 3 weeks it's dropped into voltage cutoff. Now I have to get a LiFe battery tender. Not really pleased.
Lithiums aren't known for battery drain. They are known for better cranking than lead acid batteries but also for being sluggish in freezing temps. If your battery wasn't very cold when this occurred, you most likley have a vampire battery drain. Usually its from something aftermarket connected directly to the battery instead of a keyed source.