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Discussion Starter #1
Hi,

Tried to get my GTR out to play today for the first time since the onset of winter and the battery's almost dead, despite having been on a charger 24/7 all winter. Just enough power to make the starter solenoid click on and off.

Just about managed to get it to start off jump leads (5 mins with donor car at 3000rpm, then GTR just about started). Left GTR running for at least 5 more minutes. Turned it off to make sure it would start on its own before going anywhere in it. Nope. Just clicking of starter solenoid again.

No amount of further effort with jump leads would get it going again.

Aside from deciding I needed a new battery, I'm wondering what other people do? I had assumed that having it sitting on a charger 24/7 would have meant it was OK. This isn't my daily driver so I'm now concerned that I'm going to continually have this problem.
 

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I always disconnect one of the leads (minus) if I'm not going to drive the car for more than a month. Even after three or four months, not had a problem. :)

Never considered leaving it on a charger. Don't like the idea for some reason... too much of a good thing? :confused:
 

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Did you check the water in the battery?
Mine had been flat since november and after starting it with a booster and leaving it running for half an hour it wouldn't start the car again. Bought a new battery yesterday, and some UK battery connectors as it had a jap battery. I looked in the old one and every cell was bone dry...oops!
 

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Discussion Starter #6
Hmm no I didn't check the levels, didn't think of that. The battery isn't all that accessible on a 33 that's backed into a garage though. Because there's a slope up to the garage door (from outside) and then a lip, I need engine power to get the car into the garage. I could wheel it out to check the battery but it might be a one way ticket :(

I may be able to wheel it forward far enough - would be worth a check definitely. Mind you, if a cell is dry, isn't it a bit beyond help anyway?
 

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if its been charging 24/7 and the battery is dead then I don't think you will be able to bring this one back to life. Sounds like a new battery is in order, I have just orderded an optima one, seemed the best solution.
 

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I bought a Hella battery, slightly bigger than std but a snug fit in the tray. I had to make a new bracket to clamp it down as well as put new connectors on the leads. 60Ah and £32, other places wanted at least 45 quid.

Yeah, what is an optima battery?
 

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Optima..

Very nice, but omg HOW MUCH!! :eek:

The Hella is an FT075, The place is in Nottingham and are on 0115 9422728. I gotta thank Dean (uk_skyman) for pointing me in their direction. It's about the same width but a bit deeper than std that's why I had to make a new strap. It's not as tall either (for those who like good shelf speakers).
 

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I freely admit that my technical knowlege is not vast, but ....... If you leave a car battery on permant charge 24/7 over the winter, will this not cause the battery acid to evaporate, thereby leaving you with 6 completely dry cells ?

I'm pretty sure that the reason you should not have naked flames near a charging battery, is that the charging process heats the acid, which gives off a flamable gas, which would only cease once all of the available liquid has gone.


Now tell me that you have a sealed battery, so therefore it cannot loose moisture into the atmosphere ! :D :D
 

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I use a battery conditioner.
It constantly monitors the condition of the battery and trickle charges when the voltage drops to a pre-determined figure.
If you keep your prized posession off the road during the winter, then it's a must have bit of kit.
Cost about 50 quid.
 

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I installed a slightly bigger battery but don't have a clamp on it cos the standard one won't fit. Stock R32 GTR.

Last week tried to start the car and it was DEAD!! This was quite surprising cos 2 weeks before that i started the car and the engine turned 2 cranks and started... this after the car was standing for 9 weeks without being started once.

I was baffled about why it wouldn't start.. First crank the engine turned about 3 times and then power died totally. Then only enough power to make a "click" off the solenoid. Jumpstarting didn't even work but then i discovered a loose battery terminal on the positive (red wire).

Somebody help me if i'm thinking along the right lines:
Think the last time i drove the car the battery terminal came loose and probably wasn't charging for all the time that i drove it (about 20kms). Now i tried to start it and it just got drained.

Bummer...

if you going to put in a bigger battery, make sure you have it clamped down adn that the terminals don't come loose!
 

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Remove a lead if not running for a month or longer. Leaving on constant charge does more harm than good (warmth and chemical reactions will evaporate all fluid)

If your really concerned then every 2 weeks connect a bulb and leave until ALMOST flat, then re-charge to full capacity. This should make it last a while longer.
 

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never knew your were an alarm expert too Cord - you never cease to amaze with your wealth of knowledge;)

how's the white beast coming along?

Steve
 
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