A battery that has been drained fully and then recharged is far more likely to fail soon than a battery that has been well-maintained with a peak charge. 1-1 of 1 Results. Hi, . If you would rather use the auto lights, just remember that an improper sequence of events at home or in the parking lot could result in your lights staying on until you return to your vehicle, hopefully not with a dead battery. A fully charged battery should have over 12.4 volts. After testing my 12v battery and finding it to be weak I decided to replace it because I don't want to be stranded somewhere. They may even repeat the error. While most modern cars electronically turn off your headlights to avoid battery drain, in certain circumstances, some Prii (the plural for Prius) will actually turn them on. 2008 Prius Dead Battery. The answer is in the headlight controls. When I reconnected the + cable, there was a huge spark and the fog lights flashed on and off. I have a 2001 Toyota Prius with an intermittent problem with the 12 volt battery. Doing things like cleaning your battery terminals can help keep your battery fully charged and even make it last longer. FREE Shipping. But once you realize that the process of turning off a Prius and getting out can turn your routine into havoc, you’ll pay more attention. Prius 2004 (generation II): brake/ABS warning lights. We recommend changing the battery in Toyotas every 4 years. park with your lights on 2.) First road bike: mech disc brakes vs dual pivot sidepull brakes? prius: with a dead drive battery&gas engine wont start,the 12 volt. Fortunately, even though the 12-volt batteries in the Toyota and Lexus Hybrids are located in the rear of the cars, there are posts in the engine compartment that allow you to "jump" the battery if it's dead. The 12 volt battery has been tested and found to be OK etc. If using a battery charger, start the Prius and leave it charging overnight. ✔Best Deals This article is written to show how to change the smaller, 12 volt battery. Allow your battery to charge for at least 4 hours. The do-it-yourself battery test they describe may not catch all bad batteries, but it’s far better than no testing, since the Prius will not start if the 12 volt battery goes dead. Install the negative terminal wire onto the new battery, making sure it is pointed in the same direction as it was on the old battery. jumped the battery and started fine, no charge in plugin battery, traction part of battery … Share Followers 0. It only takes a minute to sign up. Similar batteries can be found in tractors, power equipment, motorcycles, powersports machines, snowmobiles, four-wheelers, and solar power backup systems, … Exit the vehicle, not knowing that your lights are still on. Toyota Master Technician. However two things, first, never leave a Lead-acid battery in a flat state, it needs to be recharged soon after it goes flat. prius 12 volt outlet dead both 12 volt outlets are dead... is there a fuse in the plug or is it in the car's - Toyota 2008 Prius question . By dead, we mean the grid in the cell has melted or has some other irregularities. Turn the Prius on and drive for a minimum of 20 minutes without turning the engine off; this will re-charge the battery enough so it … The good news is that you can test the battery … ), Prius (2nd generation): 12v battery keeps dying, Visual design changes to the review queues, Opt-in alpha test for a new Stacks editor, 2005 Prius-After replacing 12 volt battery, door won't open, but car runs, Prius 2004 (generation II): problem with brake drained hybrid battery, Prius 2004 (generation II): brake/ABS warning lights. jumped started it let it run about 30 min, pulled into garage. Dog starts behaving erratically. Can vice president/security advisor or secretary of state be chosen from the opposite party? Even though the Prius doesn't use it's 12-volt battery the way conventional gas-powered cars do, their batteries do still reach the end of their useful life and need replacing. 7. I followed your advice and discovered a drain of about 0.8 amps, which is a lot. Don't Let Your Prius' Battery Die, Ever. Ages: 5 years and up. References. My battery was dead at lunch today. Fortunately, even though the 12-volt batteries in the Toyota and Lexus Hybrids are located in the rear of the cars, there are posts in the engine compartment that allow you to "jump" the battery if it's dead. And what you prius 12 volt battery dead replacement by sluggish starts or no starting at all culprit seems be! Vehicle Maintenance & Repair Stack Exchange the full charging voltage hybrid cells discover dead. Car will be unable to start as well key to the power button ; 2 Next... 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