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12V battery on Leaf runs down if charger lead left connected?

  • 20-11-2016 10:15pm
    #1
    BoatMad
    Registered Users, Registered Users 2 Posts: 13,702 ✭✭✭✭


    It was claimed on FB , that a user ran down the 12V leaf battery by leaving the charge lead connected for 2 days but not charging

    This seems very strange !

    anyone any thoughts


Comments

  • #2
    Soarer
    Registered Users, Registered Users 2 Posts: 9,014 ✭✭✭Soarer


    Try it and let us know how you get on! ;)


  • #3
    BoatMad
    Registered Users, Registered Users 2 Posts: 13,702 ✭✭✭✭BoatMad


    Soarer wrote: »
    Try it and let us know how you get on! ;)

    good idea , will leave it in tomorrow as car not being used , have done this before with no ill effects , i think its a MY13/14 issue ( as were many 12V issues (


  • #4
    [Deleted User]
    Posts: 21,179 ✭✭✭✭ [Deleted User]


    Has been known to happen The original 2011-13 Leaf. Not sure about the 2014+.

    Could be that something was left plugged in, light on etc.


  • #5
    cros13
    Registered Users, Registered Users 2 Posts: 3,285 ✭✭✭cros13


    It's still a known issue on the Mk1 Leaf. The DC-DC converter that charges the 12V system is prevented from running while the on-board charger(s) (or rapid charger) are charging the traction battery.

    I think with the onboard charger(s) in the mk1.5 & 1.75 the issue is fixed. It's indicated in the service manuals that the third dashboard charging LED will flash on its own while the 12V is being charged.


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