The effects of a totally flat battery

[Viscount]

G'day,

I was just wondering if there are any adverse effects of having your battery go completely flat (ie. the immobiliser won't work, clock resets, even the current trip odometers reset). I thought some ECU settings might be lost, or something like that?

Cheers

[Eug]

ecu will reset - that will retard (?) the timing a bit but it will re-learn itself quickly.

people take off their battery all the time whether it wud be for a sound install, or installing an rsm/pfc whatever...

its not a big deal.

[Viscount]

Ok cool thanks mate. I left my lights on the whole day at uni 2 weeks ago. Imagine my surprise finishing an 8 hour day with a flat battery and then finding a parking ticket on my windshield :|

[race_snooze]

it can stuff your battery, like drying out the cells and causing a build up of corriosion (cant spell) on the bat terminal.

[[WLDCRD]]

do it too often and your battery wont hold charge.......and then your car will explode into a huge ball of flame sucking everything into it, then the chasis will implode in on itself and totally disappear into another dimension.

[r34_skyline]

Ok cool thanks mate. I left my lights on the whole day at uni 2 weeks ago. Imagine my surprise finishing an 8 hour day with a flat battery and then finding a parking ticket on my windshield :|

damn, thats gotta suck.

hrmm doesnt the r34 have auto lights off or a chim which tell ya u've left your lights on ?

[Downforce]

damn, thats gotta suck.

hrmm doesnt the r34 have auto lights off or a chim which tell ya u've left your lights on ?

Yes it does have an auto chime when the engine is not running and you either;

a) open the door with the keys still in the ignition, or

B) open the door when the lights are on

BUT, this is a common scenario:

- you have been driving with your headlights on

- you park the car, switch off the ignition, turbo timer is still running the engine

- remove the keys and open the door

- because the engine is still running, the auto chime does not sound to advise you the headlights are still on (because it thinks you're still driving the car)

- arm the alarm and walk away (engine runs until turbo timer stops, headlights are still on, but door is closed by this time - so the auto chime isnt active, and meanwhile you are at a cafe enjoying a cappacino somewhere while your battery runs flat )

[Downforce]

damn, thats gotta suck.

hrmm doesnt the r34 have auto lights off or a chim which tell ya u've left your lights on ?

Yes it does have an auto chime when the engine is not running and you open the door with either;

a) the keys still in the ignition, or

B) the parkers or headlights are on

BUT, this is a common scenario:

- you have been driving with your headlights on

- you park the car, switch off the ignition, turbo timer is still running the engine

- remove the keys and open the door

- because the engine is still running, the auto chime does not sound to advise you the headlights are still on (because it thinks you're still driving the car)

- arm the alarm and walk away (engine runs until turbo timer stops, headlights are still on, but door is closed by this time - so the auto chime isnt active, and meanwhile you are at a cafe enjoying a cappacino somewhere while your battery runs flat )

[Bass Junky]

I do that all the tme Matt.

I jump out walk off, realise that the lights are on and have to go back and look like a nufty and switch them off!!

[Downforce]

I do that all the tme Matt.

I jump out walk off, realise that the lights are on and have to go back and look like a nufty and switch them off!!

lol, me too. hows my wang going? pm me..

[TracidTrax]

i can never forgot to turn my lights off, its just a habbit. Hope i havnt jinxed myself now

[rs73]

If you have powerfc, will a flat battery cause loss of stored settings? Means another $400-500+ to get it re-tune?

[rsx84]

i know to reset the r31 you have to remove the battery terminals then leave it over-night or 24hours before it resets..

[[WLDCRD]]

rs73: i dont believe it does