I have a 2005 Gen 2 with about 79,000 miles. The 7 year old car wouldn’t start yesterday morning, I pushed the start button and it behaved funny, several lights flashed in different sequences, it showed my gas guage being full then being at 1 bar, it showed the boxes that go over the gear indicators all lightup at the same time, and ofcourse the car didn’t start. I turned on an interior light and noticed that it was dull. After some youtubing, I was able to jump start my car from my wife’s 2010 Prius. I figured it was just a dead battery so I drove to work no problem, to lunch and back to work, no problem, and home no problem. The next morning: same thing. I jumped the car then did the battery test via the diagnostics menu: in accessory mode it was reading 11.9 v. I figured it was time for a new battery: I contacted Firestone, they indicated that they can’t do Prius batterys. I got an appointment at the dealership, the battery cost 199.99, labor 15 bucks, and tax etc. brought the total to 232.21. Before dropping it off, I asked the guy if there was a test they can do on the hybrid battery, because I am close to my warrenty expiring (I have had the car for about 7 years and 6 months). He said: Oh, we never have problems with hybrid batteries. I said: well can you check. He said: They extended the warrenties to 10 years…. At this point I knew he was lazy and full of it, even if they did extend warrenties for new cars, I know mine was 8 years and they won’t give me extra time because they are nice. Then he said: with your new battery, we’ll do an electronics test, but that’s not specific to the hybrid battery and that’s all we can do. I don’t believe him … Anyway, I have the new 12 v. battery and it reads 12.8 v in the diagnostic screen. Let’s see if I can go to work tomorrow. All things considered, the original battery did last 7 years, which I am happy with.
Jump starting a Prius with a Prius Oh the Horror! Lolz. That's very scary. Do everything you can not to do that again. Go to Sears and buy a battery charger. There cheap. The dealer charge for a new battery is not bad at all. Seen much worse. And yes the dealer can examine the Hybrid battery. Its usually a diagnostic fee around $125 to hook up there Toyota Techstream laptop. Its easy for them it just plugs into the OBD port. They can check rate of charge on a test ride, and alot of other variables such as each individual module voltage. Get that module voltage and post back here. Good Luck
Testing the hybrid battery in situ is not straight-forward and leaves room for interpretation. Basically, if you do not have a red triangle for a bad hybrid battery, there is NOTHING that a dealership can or will do to replace the battery under warranty. There is no point in having it tested, being a waste of their time and your money.
I replaced the 2005 prius 12v battery at Battery Warehouse in Leesburg, VA yesterday. I got some glass technology made in the USA Dekka battery with installation for $225 + tax. Toyota dealership wanted $325. I was told they removed the original battery so it was time. Note that this ultimately did not solve my problem, which occured again today- which is apparently due to the extreme cold weather and apparently is caused by a faulty combination meter (?) which malfunctions in the cold and turns off the odometer, speedometer and all dashboard lights while also disabling the lift gate and power-off button. So before you waste cash on a new battery that isnt the problem, check the temperature. this battery and car have been fine at all temperatures above 30 degrees.
I also agree... Most concerns raised about the Prius battery are fear-based and unproven. It's as simple as getting a battery that fits securely in the space allowed. The confusion/profit is that a Prius battery never turns a starter so Prius drivers can go way longer on an old battery than a battery in a car with a starter... But because the battery is a different shape and serves a less demanding purpose capitalism manipulates the confusion by charging twice as much for a battery that's only half as good as a regular car battery. Here's the one I'll be buying soon unless someone proves it not to be the best... WKA12-55C/FR 12V 55Ah Werker AGM Flame Retardant Battery - STEEPCLIMBER - Solo Wheelchairs - Wheelchair or Mobility - Batteries Plus It's from Batteries plus for $124 and I've seen 'em online for as cheap as $75 but once you figure in shipping and the risk of being sent the wrong one or a bad one through the mail, I'd rather buy at a chain store that can be found everywhere I drive.
Not doubting your words Seilerts but a system just announced in the UK when the car reaches the end of the normal HV battery guaranty "be it at 100,000 miles or 8 years" you can now pay a test fee (not announced yet), and if your car passes you get an extended 1 year 15,000 mile guaranty. This carries on till the car fails the test. John (Britprius).
I have a Gen I and I have a "Triangle". To test the cells in situ can I take off the trunk covers, remove the back seat and the cover from the battery pack and then do the test - or is it even more difficult than that? Mike