Hi all,

2010 USDM base model Fit, manual trans

Had a bit of an adventure last night trying to get a friend's dead car jumpstarted. Ended up with their car alive, my car dead, and a third car involved. The important part is that I cranked their car while it was hooked up to my car (turned off). A dumb move, I know. This obviously drained my battery and possibly caused other damage, which is the nut of this question:
I have since tried jumping my car this morning, giving it plenty of time on the lead before making an attempt. I get nothing from the starter, some weak and blinking dash lights, and a dim dome light. When I try the headlights all I get is a rapid clicking. My battery is dead-dead, right? Fuses on top of the battery look fine, and though I haven't gone back out into the cold to check all the relevant interior fuses, I imagine the headlight relay(?) clicking is the result of insufficient voltage from the busted battery? Mainly looking for a bit of assurance and confirmation of my suspicions.

Thanks all!

 

If you can voltage test see what it says. I would have someone jump start me and run it for 20 miles or so and then shut it off at a place that sells batteries.

 

Have you tried cleaning and tightening your battery connections?