I had every intention of heading out for a ride today—gear on, helmet buckled, bike ready to roll. I turned the key to the "on" position and hit the starter button… and the dash went completely black.

No response at all, even after toggling the kill switch and trying again. So, plans got scrapped and I went digging for my trickle charger instead.
It’s been connected for about three hours now. I checked on it an hour ago and the screen briefly flickered on for a couple of seconds, then went black again. My guess is the battery is fully flat.
Anyone know if a trickle charger can bring a dead battery back from the grave?
For context: a couple of weeks ago, I removed the battery (a Parts Canada one, I believe) to install a switched power distribution box for a USB charger and heated gear plugs. I checked the battery off the bike back then, and it was showing 12.7V—which I figured was healthy-ish.
Now I’m wondering if I’ve got a parasitic draw. But would that even be possible if the distribution box is wired with a relay?
I’m leaving it on the battery tender a few more hours to see if anything changes. Fingers crossed.
So bummed down that I wasn't able to go out today. Well, I think instead I will watch the 24h Le Mans.
The only silver lining is that this didn’t happen next week—I’ve got a four-day trip to Pennsylvania planned.
Open to any thoughts or advice—especially on diagnosing draw or whether this battery's worth saving!
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