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12V battery empty

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Peeto, Nov 25, 2016.

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  1. Peeto

    Peeto Member

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    Hi guys,

    my wife just forget to turn off light inside the car for 2 days and car is dead, I can not start. This 1 min video helped me to turn it on again. Hoping it can help others like myself.


     
    #1 Peeto, Nov 25, 2016
  2. bisco

    bisco cookie crumbler

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    well done, thanks!(y)
     
    #2 bisco, Nov 25, 2016
  3. Peeto

    Peeto Member

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    30min before I was like I will ask here as I am total anti-tech guy regarding cars. Only "problem" with this solution, you have to bother somebody with car and cables to jump you in /if you do not have 2 cars at home/ and than you can recharge by driving for a while. But I was quite scary after reading some negative topics, dead batteries and so on, but nothing bad happend.
     
    #3 Peeto, Nov 25, 2016
  4. Peeto

    Peeto Member

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    btw, Hi Bisco, how is your plug-in now? I have my first winter with prius and when I changed my tyres to winter ones + temperature around 0C my increased consumption is about 0.5-1l/100km ...not so bad
     
    #4 Peeto, Nov 25, 2016
  5. bisco

    bisco cookie crumbler

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    i lose about 25% of battery capacity, so i'm down from 16 miles of ev to 12. mpg's also drop about 20%. reformulated gas, bad weather and etc.
     
    #5 bisco, Nov 25, 2016
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  6. Neohippy

    Neohippy Active Member

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    I thought the car was only rated for 11 EV miles?
     
    #6 Neohippy, Nov 25, 2016
  7. bisco

    bisco cookie crumbler

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    rating is by a standardized epa test. ymmv. most of my driving is local, 30-40 mph. some get more, some get less. precipitation and a/c use also reduce distance.
     
    #7 bisco, Nov 25, 2016
  8. Peeto

    Peeto Member

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    that is still impressive, I would be satisfy if I have PIP. The local car service guys from my small village never saw hybrid, they come with their car, I told them, guys, just connect your car to my battery here and here /from video/ and they told me ok, now try turn engine on. I told them, thanks guys you can disconnect, car in on now. they answer me, no something goes wrong, your car is still off/does not hear engine/ :) so we had a fun a bit :) ..its nice to live on small village :)
     
    #8 Peeto, Nov 25, 2016
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  9. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Your battery was near-dead, but with a jumpstart and a bit of driving around everything is fine now?

    I would get it checked with a digital load tester. I'd suspect it's Cranking Amps are compromised, that the battery is marginal at best, and should be replaced soon.
     
    #9 Mendel Leisk, Nov 25, 2016
  10. Peeto

    Peeto Member

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    not really. no sign of anything. I drive 30min to recharge it. And since than I drive once per 2 days and everything is OK. Battery is 5 year old. It would be really bad if u need change batteries so soon or if they die after recharge.
     
    #10 Peeto, Nov 30, 2016
  11. fuzzy1

    fuzzy1 Senior Member

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    For the 12V battery, 5 years old is at or near end of life in most U.S. climate zones.

    And because the Prius 12V system charges very slowly, 30 minutes is much too short, it takes many hours. See Patrik Wong's post at #10 of this thread: Dead battery. Again. | PriusChat
     
    #11 fuzzy1, Nov 30, 2016
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  12. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    And, it's not 30 minutes on a dedicated charger, it's 30 minutes "driving around".
     
    #12 Mendel Leisk, Nov 30, 2016
  13. fuzzy1

    fuzzy1 Senior Member

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    I'd describe the Prius internal 12V inverter as a 'dedicated charger'. But a very slow one, meant to be good for full time use. The faster home or bench chargers are meant for temporary use, so can charge faster without cooking the battery.
     
    #13 fuzzy1, Nov 30, 2016
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  14. Peeto

    Peeto Member

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    thanks guys, I read all your posts. Nothing happend from this incident. It is freezing now in my country. Even car looks perfectly fine, I will better change the battery after winter, or let it check by toyota service guys. I have much less experience, and if u say, battery is near dead, i have no reason to not believe you. If anything will happend, i will report here to share experience...
     
    #14 Peeto, Dec 3, 2016
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  15. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Yeah, we're all counting on your battery dying. Don't let us down.... No no no: kidding, hope you make it through winter. :)
     
    #15 Mendel Leisk, Dec 3, 2016
  16. Peeto

    Peeto Member

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    :) i think of your posts, every morning, especialy when it is minus degrees celsius :) .. I perhaps have some chances, that previous owner change battery already once as I bought car as 5yrs old :)
     
    #16 Peeto, Dec 3, 2016
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  17. fuzzy1

    fuzzy1 Senior Member

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    There is usually very little reason to change the battery just after winter. The warming weather will extend its life. It is just before and during winter that most replacements are needed.

    But if the charge is simply low, an ordinary 12V battery charger should take care of it, at much lower cost than replacing it. An ordinary battery check by the Toyota service guys will not charge it, they will merely tell you if it needs replacement. While they could also charge it for you, that is a separate step from testing it, and you would have to ask (and maybe pay for) that step.
     
    #17 fuzzy1, Dec 3, 2016
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  18. Peeto

    Peeto Member

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    Survived days after jumpstart: 10 no external charging, only regular drive... not dead, yet. :) -8 Celsius here..
     
    #18 Peeto, Dec 5, 2016
  19. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Finally below freezing here, this morning, and light snow (first of the year). But we are on the edge of that great temperature regulator: the Pacific Ocean. :)
     
    #19 Mendel Leisk, Dec 5, 2016
  20. Peeto

    Peeto Member

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    -32 celsius today morning :D , battery still working (y)
     
    #20 Peeto, Jan 8, 2017
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