My EDC is tiny. I keep a bargain S2+ in the car.
I leave a 3C, 3led flashlight i got way back when in the trunk.
interesting
i do the opposite
EDC is FW3A, i consider that ‘big’ {or at least ‘bright’}
then my car light is tiny, and ‘not really all that bright’, for ‘inside the car’, mostly
wle
EDC: Olight S1R-II
Neck lanyard: Olight i1R EOS
Car console: Olight S10R (my old EDC)
Car keys: Fenix E05
Other key-ring: UltraFire B3
I have 4 lights in my car; a Sofirn 2AA light, a cheap 3AAA headlight, an old 3DD Maglite and a 1 million candlepower spotlight. Also an Olight i3E on the key ring.
My EDC may or may not have a decent runtime.
My car light is an old 2xAA Fenix (I think) with Lithium primaries and a physical switch. It may not be able to land an airplane, and it may not have 87 fancy modes, but it will darn well be there when I’m stuck on an unlit rural road looking for my spare and jack.
My pocket EDC for use in the cabin.
A headlight kept in the spare tire/jack area for hands-free.
slmjim
MH20 and E03 on me.
SP32Av2 on my bag.
Random light or two in my bag for s&g.
So… no need for a car-light except for what’s already in the interior (WW LED bulbs in place of the come-with 194s).
Car lights: Coleman C-Tac 60 18650 and Rayz 1000 Lumen 9xAA.
In my truck, which is also my mobile office/toolchest, I have 5 headlamps (sometimes I have to supply them to my guys) and about 20 flashlights. Lol.
I also EDC an S1R II and an IYP365 Nichia.
I never want to be un/under prepared.
I have lights in my cars in case I need more light than my little EDC can put out. Or in case my EDC light battery goes dead. Or in case someone other than me is in the car, and needs a flashlight.
I ride a motorcycle and space is important, also I carry flashlights in my pocket (18650), around neck and keys so I don’t carry any extra vehicle flashlights.
I have a 3 D cell 3nd gen Mag LED running on AA Energizer lithiums with a traffic wand and a Defiant head lamp, also running on Energizer Lithiums (AAA). I also keep a Life Gear 3 AA AR Tech 5 in 1 flashlight/lantern in the trunk, mainly for use as a a road flare in the flashing red mode.
I like lights that run on rechargeables for edc and ones that run on cr123 primaries for the car (and then keep extra primaries in the car too). Convoy M1 is my edc and usually a surefire p60 host in the car.
I have 2 lights in the car now that it’s cooled off and gets dark earlier.
One is a Nitecore EA41 with custom anduril 4s NiMH driver (which is in the car year round) and the other is a D80v2 which I only put in my glove box last month (no li-ion in summer).
I just keep Ultratac A1’s in the car and truck with NiMh in them. Spare cell in both vehicles too. I give em a refresh charge every oil change. 
I have 2 lights inside car, in doors.
Wife’s side a 3 step no name zoom.
My side a wall to wall aspheric.
I’ve currently got about five flashlights and two headlights in the vehicle. All lithium ion, most will stay in there year-round. One is a Black & Decker spotlight that’s been in there since around 2012 with the two original 18650s in it. For the last 3 years I don’t use it a lot but it still seems to work okay. I’m not going to worry about extending the life of lithium ion batteries by keeping them properly stored. And I’m not convinced there’s any danger. They see from a little below zero to a little over 100 fahrenheit year after year. Edit LEDLIB Black & Decker. I’m not sure how hot it gets inside the vehicle.
I agree wholeheartedly. I’ve been keeping Dewalt 20V LI tools and batteries (basically 18650 packs) in my truck for years down in hell (South Florida summers) and I’ve never had an issue.
Yeah I completely forgot about the battery packs that I and maybe millions of other people leave in vehicles all year round all over the world. And I’m not saying that there aren’t some incidences, but the risk is probably small especially with single-cell devices. I may retire that 2 cell spotlight for various reasons such as not being waterproof, size, and just the age of the somewhat hardwired batteries.