Hi vasonline, welcome!
My Insight (2nd gen) does not have a spare at all (as standard), just a tire seal kit and an electric pump. That does save a lot of weight and space even compared to an emergency spare.
If I'm worried I can always take one of my winter tires along.
I actually had a slow puncture once but could air it up (because I had that pump) and make it to the local dealer to get it fixed; I would not have used the spare if I had it with me.
You'll save most without the spare. Makes the car lighter and more fun to drive.
If I may ask, where did you order your LiFePO4 battery?
I want to do that too, and a
small parallel hybrid pack; I'm looking for options and the 12V swap would serve to test the waters.
Does it have a BMS?
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gigameter or 0.13 Megamile.
For confirmation go to people just like you.
For education go to people unlike yourself.