1. Offline

    tym2brn New Member

    Member Since:
    Dec 19, 2011
    Posts:
    30
    Likes Received:
    4
    Location:
    california
    Your Vehicle Year:
    2002 Prius
    Model:
    II
    Does the Main battery have anything to do with starting my prius?
    Reason I am asking is I replaced My Main battery today with another battery I had from a prius I wrecked 6 months ago..Car will not turn over now...The main battery light is on now,before it was not..Also Main Battery is showing one bar on the dash...Thanks Mark
  2. Offline

    gmcneil05 Junior Member

    Member Since:
    Apr 17, 2012
    Posts:
    87
    Likes Received:
    10
    Location:
    Avon Park, Florida
    Your Vehicle Year:
    2005 Prius
    Model:
    Four
    The battery might need to be charged out of the car before installing.
  3. Offline

    tym2brn New Member

    Member Since:
    Dec 19, 2011
    Posts:
    30
    Likes Received:
    4
    Location:
    california
    Your Vehicle Year:
    2002 Prius
    Model:
    II
    How is this done? I called toyota and I was told they couldn't charge it...Thanks Mark
  4. Offline

    Danny Hamilton Active Member

    Member Since:
    Apr 30, 2007
    Posts:
    926
    Likes Received:
    86
    Location:
    Greater Chicagoland Area
    Your Vehicle Year:
    2007 Prius
    Model:
    N/A
    Yes. The Prius uses the High Voltage (HV) traction battery to power MG1. When the Prius is stationary, MG1 is used as a starter motor to "turn over" the Internal Combustion Engine (ICE). If that battery is drained too far, you will need special charging equipment to charge it back up. For most people, this means making arrangements with their local Toyota dealer to have them charge it up for you. They may not have the charging equipment on hand, and may need to transport it from some other dealership.
  5. Offline

    tym2brn New Member

    Member Since:
    Dec 19, 2011
    Posts:
    30
    Likes Received:
    4
    Location:
    california
    Your Vehicle Year:
    2002 Prius
    Model:
    II
  6. Offline

    usnavystgc Die Hard DIYer

    Member Since:
    Jul 29, 2011
    Posts:
    2,087
    Likes Received:
    564
    Location:
    Bowling Green, KY
    Your Vehicle Year:
    2005 Prius
    Model:
    Four
    Are you sure the service plug is reinstalled correctly? I've seen this posted here on several occasions and that almost always turned out to be the problem. See this post (#9 and beyond) http://priuschat.com/forums/gen-ii-...-replacing-bad-cell-in-main-battery-pack.html.
  7. Offline

    tym2brn New Member

    Member Since:
    Dec 19, 2011
    Posts:
    30
    Likes Received:
    4
    Location:
    california
    Your Vehicle Year:
    2002 Prius
    Model:
    II
    I pulled the battery out of the car yesterday and checked the volts on the individual cel's. low was 1.57 high was 4.78. I knew I was having problems on cel block #7 on my old battery. so removed the tin to examine it and one of the cel's on block #7 had blown up. I replaced block #7 with two battery cel's from the battery back I took out of the wrecked prius..Car runs now,cleared all the codes, they have not come back on yet..
  8. Offline

    usnavystgc Die Hard DIYer

    Member Since:
    Jul 29, 2011
    Posts:
    2,087
    Likes Received:
    564
    Location:
    Bowling Green, KY
    Your Vehicle Year:
    2005 Prius
    Model:
    Four
    Good deal!!! :)
  9. Offline

    tym2brn New Member

    Member Since:
    Dec 19, 2011
    Posts:
    30
    Likes Received:
    4
    Location:
    california
    Your Vehicle Year:
    2002 Prius
    Model:
    II
    codes are back on...cel block #7 is weak...

Share This Page