Back up fuse

mortenk said:

Check the current with ignition off - that's the only way to determine if the draw is unexpectedly high. I can leave my 2016 (with original battery) in the garage without a battery tender for a month or more and it always fires right up.

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Same here - my "winter storage procedure" for the FJR is to pull it into the garage and remove the key (usually late October, early November). De-winterizing involves turning the key and pressing "start" on the ignition sometime in March. It's been years since I've plugged a battery into a tender over the winter.

That's a LOJACK device. No surprise it's draining the battery as it needs to be constantly sending location data.

I just googled the FCC ID on the box.