If you drive more than twenty or thirty minutes battery light comes on and stays on. • The warning light will repeatedly illuminate for 10 seconds, with 4 second intervals during a charge cycle (DC plug is still connected) if AC power to the charger is interrupted. If the engine shuts off and the headlights stop working while you do this, you are dealing with a loose, corroded or frayed cable or wire. February 14, 2013. When the Battery Light Comes On . Hi All, Newbie here with a problem that 2 mobile mechanics have been unable to solve, I have a 2004 Mini One R53. Check engine light turns on and off in your car. Why battery warning light is on and drive belt off Toyota Corolla. With the car still running i pulled the negative cable off the battery terminal and it kept running, so that means the alternator is charging, and suprisingly the battery and brake light went off. 2003 Chevrolet Malibu. When you start car battery light comes on then goes off, comes on again five minutes later, goes off again. When I am on smaller roads, at slower speeds, it goes away. If your car won’t start but the lights and radio work fine, it could be one of several problems, possibly including a dead battery. Why car battery light on an off? Slipping alternator belt or failing alternator is the reason why Battery light + Brake light won’t turn off 1 Answer. Most of drivers feel annoying when they see the Check Engine Light still turn of even the car problem was solve. I put the terminal back unto the battery and the car labored alittle and the lights … You should be charging at about 13.5 amps while idle with no strain on the system. Once the battery goes dead the car won’t start. Hello guys, I have an infiniti G35 (year 2005) with 165,000 miles on it. I checked the … Just to be 100% clear, the battery warning light: is on when the engine is off. I just got new tires today, and on the way home I noticed the battery light blinking on and off. About 4 weeks ago on the way back from work my Battery light started flashing on and off at approx 8 second intervals. The reason why the radio, dash lights, headlights, and other electronics draw power while the engine doesn't has to do with the amount of current each device draws and what may be interrupting the path. The alternator isn’t keeping the battery charged but it is brand new and I had them test it twice and they said it’s good. But if your car doesn’t have this feature, your headlights may stay on until you either turn them off or till your car battery is completely drained. The light is not on the entire time I am driving fast, it comes on for a few seconds, then goes off, then comes back on, and goes back out. Q: I was driving home from work one day and when I pulled up to a stop sign my check engine, battery, and oil light came on. Most parts stores will test this for you for free. T01L LED Closet Light - BLS Super Bright 20 LED Under Cabinet Lighting Battery Powered/DC Input Wireless Motion Sensing Light, Auto On Off Switch, Motion Sensor & Light Sensor, Light Beam Adjustable 4.4 out of 5 stars 2,588 It does not come on all of the time, but it has been on 3 times in the last three weeks. You can drive a short distance on the battery, especially if you turn off most of your car's electrical items (like the radio, air conditioning, etc. Usually, the light turns off after some time, but if it stays on even when you are driving, then pay attention. Do not turn your car engine off as you may not be able to restart it if there isn’t sufficient charge remaining in the battery. I never had anymore problem with it doing that until now. This light comes on when your alternator is not making electricity and the car is running off of battery power alone. it comes and go. After another few minutes all warnings lights flash and all gauges freeze, then power steering goes out and car … Use constant current drivers? ... it might be the reason why the car battery light is still on. But how long can the car keep going in this case? Then, turn the car on and check the brightness again. Don’t … Experts consider that, if your alternator is the problem, the car will keep running strictly on battery power for about half an hour, until the battery discharges completely. I had also scraped a parking log that was broken in half and in the wrong place about the same time. with out car batteries -> with old car batteries? If your battery light comes on, you either have a bad battery, bad alternator or poor connection somewhere in the charging system. If your car battery keeps draining, the first things to check are your lights. To check how your battery is doing, switch on your headlights while the car is off. 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