will it kill my car battery?

[Daylindafung]

i got my subs, fog lights, dashcam, foot light etc, all wired to my battery. will this kill my battery very soon? and i always charge my phone in the car. after i got my subs, on cold mornings when i start my car, it sounds like it's kinda struggling to turn on.

[slam525i]

Rewire it so it doesn't go directly to the battery, but to the cig-lighter so it doesn't stay on.

Alternatively, wire it to a voltage monitoring box that shuts off after it dips below a certain voltage. (That's what I did for my dashcam.)

[Daylindafung]

i wired my fog lights and dashcam to my fuse. and its only my subs that directly connected to the battery. it that okay? :S

[slam525i]

The sub is powered, right? I.e. you're powering the sub's amp the whole time? Even if there's no signal going into the amp, unless it has an auto-power down (some do), it will keep powering the amp and will draw a significant amount constantly. (Amps suck power even if there's no signal to amplify.)

[Booter22]

i wired my fog lights and dashcam to my fuse. and its only my subs that directly connected to the battery. it that okay? :S

prolly not. when i had my subs and amp installed the shop put in this battery power killer thing ( cant remember what its called) and kills all power when the cars off so you dont drain it. see about getting that installed.

[slam525i]

prolly not. when i had my subs and amp installed the shop put in this battery power killer thing ( cant remember what its called) and kills all power when the cars off so you dont drain it. see about getting that installed.

You could do that with just a cheapie $5 relay if you know what you're doing. Or you can just get power from something else that's only powered when the car is powered (just make sure your amp won't suck enough power to blow the fuse). Doing it with a relay (either home wired or a proper box) is probably best for a high draw device like an amp.

[boxjohn]

None of the things you mentioned should be wired so that power is to them 24/7. They should all be "key on" or "accessory" power.

[ryan2.3]

dash cam would be good to have on at all times. A friend of mine has his always on, and it's a good thing because someone backed into his car while he was parked on the street in front of his house. Caught everything on camera

[p-o-g-i]

When I had an amp and sub installed, I had toggle switch installed so I only turn the amp on when I wanted to use it.

[Lumberjack]

The amp has a relay built in already and "power wire" should be go to the battery however the "remote on" should be wired to a switched 12v source. If you need a solenoid, relay, or switch to turn off your amp or audio system it is wired wrong.
Phones and dash cams use minimal power and will not affect it over a few days without the car running.
I also want to point out that you have no choice but to wire electronics to the battery. The alternator is what charges the battery to maintain the power over an extended period of time.
Saying nothing should be powered all the time is incorrect. Dash cams can be powered all the time as they have motion sensors. Why do some cars 12v sockets always work and some don't? The M3 in fact has a 12v socket on the console that is switched and one in the armrest compartment that is constant on.