m0ore4ustin391

My battery keeps dying when i let my car sit for 2 days, the battery is 100% dead the remote on my keys wont even unlock the doors hell i cant even pop my trunk from the button on the inside of the car. I already had classic Chevrolet replace my battery and clean my cables but im still have the same problem. I was just wanting to know if any of you guys have had this problem before and if this is a common problem with our cars and what i should do about it?

Any input?

Would the tune have anything to do with it?

Kyle4236

did you do any electrical work? like stereo, guages, etc...

m0ore4ustin391

No upgrades except for a Valentine One radar detector and keep it plugged in. But my brother has the same radar detector and keeps his plugged in and has no problems with his batter, even the people at Valentine say its ok to keep it plugged in because it doesn't draw that much power.

Btw your sig = win!

Kyle4236

well. try unplugging it first so you can rule it out completely. there could always be a bad one in the bunch. did you buy the car new or used?

m0ore4ustin391

Bought the car new from Classic Chevrolet.

HyperMuffin

You either have a huge parasitic drain or maybe a bad alternator.

killianss

Yeah I was having the same problem with my radar detector, car was dieng. After Sitting for a couple days 2-3. I believe it was my radar detector because I havent had it die yet and it was plugged in when it was dieng. You can go to autozone and have them do a Full power Test tho. They can see if theres aynthing draining your battery after your car is off.

Let me know what you come up with.

Turbalt2010

iTrader: (4)

this is really weird, but i also have this same problem, and the same exact radar detector. my car dies in if it sits for like 36 to 48 hours w.o ay use at all.

really pisses me off. i bought a 2010 so i didnt have stupid **** problems like this. but w.e i still love my balt haha

Kyle4236

^this. unplug the radar first and then if that doesnt solve the issue start at square one at the battery and start running through your entire electrical system to check it all. or take it to the dealer and tell them to do it

HyperMuffin

You could also test it yourself if you have a multimeter. You shouldn't be drawing anymore than 40-60mA. That would be about max when car is off and if it is higher you may have a problem. If you have a multimeter just test it yourself. Test parasitic drain with your radar plugged in then test it again with it unplugged and if the mA is significantly lower with it unplugged then the radar is your problem.

68Vette

My car(08 SS/TC) sat for a week at Christmas and when I got back from Michigan, the battery was dead as a door nail. I took it to Advance to have the battery checked and he said that the battery was fine it just showed that is was not fully charged but the battery isn't bad nor is the alternator acting up. So I have been driving around for the last two weeks and it’s been OK but I still don't trust it. This is the first time it happened and I hope the last but still not sure why it died.

CudaJoe

iTrader: (1)

My Battery is currently dead right now. It always dies when it hasn't been started for at least 2 days. Which I didn't drive anywhere this weekend. I'm pissed. Going to buy replacement battery today and see if it helps.

Kyle4236

buy a 2nd battery and you can go 4 days

CudaJoe

iTrader: (1)

yeah, well this definately aint the first time. Battery wont even charge from jumper cables.

mongorat427

iTrader: (82)

Put a shut off switch under the bumper as a last resort

Kyle4236

look at it this way. i'd rather have my battery dying right now then all the crap i got going on with my car right now

blackcopper

Load test the battery correctly, it is not uncommon for them to go bad. They may show 12 volts while sitting in our trunks, but as soon as a load is put to them, they drop severely. Take the battery out and have it load tested by someone that knows what they are doing.

CudaJoe

iTrader: (1)

Duralast Gold. Thats gonna be my fix.

Turbalt2010

iTrader: (4)

let me know if that works. i might have to go the same route.

HyperMuffin

Diehard > duralast

It's all personal preference though.

CudaJoe

iTrader: (1)

Okay duralast in and working great... now I just need to wait two days, lol. Did a load test on acdelco battery that came in car. I charged it for 15mins with jumper cables and patient gf. The load test showed 0% charge and and a load test of 170. the battery labels claims 290. this was done 12hrs after charging

CudaJoe

iTrader: (1)

okay I typed this message on my phone but what I was trying to say is that I had tried to charge the car this morning at around 7am and the car would not charge even after charging it through jumper cables for almost 15 mins. Stole the gfs car and went to work. came back with a new battery, swapped them, and brought the dead battery to Autozone. I had the clerk check the battery with a load test. The label on the acdelco say it should reach a number of 290 on the load test, I got a 170. The charge showed a 0%. lol.

So I asked the clerk what that means, she simply said it means it might hold a charge, it might not, lol. I told her the answer to that. By the way.... whats that grey plastic tube the enter the left side of the battery (negative side)?!?! Its towards the top. plugs into a plastic L tube. Mines cracked so I hope it does absolutely nothing.

CudaJoe

iTrader: (1)

Okkaaaaay...

I will ask the question again since no one decided to read my post.

WHAT IS THE PLASTIC L SHAPE THING COMING OUT THE SIDE OF THE BATTERY? WHY IS IT HOOKED UP TO A GREY PLASTIC TUBE?

Kyle4236

thats your NAWS shot

CudaJoe

iTrader: (1)

lol. no it isnt. Do you know what im talking about Kyle? have you had to change a battery on an 08-10 cobalt SS?