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Parked up car how long battery ok

  • 01-09-2013 7:43pm
    #1
    handlemaster
    Registered Users, Registered Users 2 Posts: 6,003 ✭✭✭


    How long is it advisable to leave a car before having to turn it over for the battery to remain functioning properly. peugeot 407 hdi


Comments

  • #2
    colm_mcm
    Registered Users, Registered Users 2 Posts: 73,520 ✭✭✭✭colm_mcm


    It all depends on how good the battery is.


  • #3
    handlemaster
    Registered Users, Registered Users 2 Posts: 6,003 ✭✭✭handlemaster


    colm_mcm wrote: »
    It all depends on how good the battery is.

    true.. average then . how long ?


  • #4
    colm_mcm
    Registered Users, Registered Users 2 Posts: 73,520 ✭✭✭✭colm_mcm


    I've started cars after months of being idle, how long are you thinking of leaving it?
    Disconnecting the battery altogether will prolong it as you'd have things like the alarm drawing current. You'd want to be sure the car can unlock mechanically it at case. Also consider things like the handbrake locking up.


  • #5
    Atlantic Dawn
    Registered Users, Registered Users 2 Posts: 84,761 ✭✭✭✭Atlantic Dawn
    M


    Can depend on weather conditions, I would say for a healthy battery that was fully charged, you could leave it for about 4 weeks during summer months.


  • #6
    corkgsxr
    Registered Users, Registered Users 2 Posts: 3,404 ✭✭✭corkgsxr


    Can ya run a lead out and put a smart charger on it.


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  • #7
    dgt
    Closed Accounts Posts: 12,985 ✭✭✭✭dgt


    handlemaster wrote: »
    true.. average then . how long ?

    So how big is it, like how many cubits diameter? Is it quadrilateral shaped? Was it made in Western Caroline Island? How many ferrets do you use to recharge it? Is the date stamped by the Julian calendar?

    Go to the car and find out
    • The AH of the battery
    • The CCA
    • How old it is

    And if it's started for short journeys, hard starting etc then we can have a better guess at how long you could leave it ;)


  • #8
    CiniO
    Registered Users, Registered Users 2 Posts: 16,069 ✭✭✭✭CiniO


    My golden rule is that if I leave car for longer than a week, I unplug the battery beforehand.

    Modern cars tend to drain more battery power when parked than older cars (f.e. 90's cars).
    F.e. 2004 Mazda 6 which I had was taking about 20mA when stationary, doors locked, alarm on.
    That gives electricity usage of about 0.5A per day, so brand new, fully charged, 100% healthy battery with 50Ah capacity, would be drained down to 0 in 100 days.
    Considering most cars don't have brand new 100% healthy batteries, and some cars might drain more electricy than others, and there is also quite big demend for electricity when starting the engine needed, many cars might not be able to start even after week or two being parked.


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