Jump to content
SAU Community

Battery

bluer33

By bluer33,
in General Maintenance

 Share

Recommended Posts

bluer33 Enthusiast

bluer33

Posted
Posted

hi all,

my battery keep on dieing, i drove the car everyweekend and only on the weekend. but lately i have to push start the car to get it going, would it be the alternater? wild driving it read 14.2v but wheni turn the car off it instantly gone to 12.7v i tried changing the baterry it didnt help. how much can i get a new alternater for including fitting, also would a maxima ultinator be ok? thanks for ur help.

Link to comment
https://www.sau.com.au/forums/topic/130518-battery/
Share on other sites
Craved Grand Master

Craved

Posted
Posted (edited)

each battery has an amp hours rating.. so it can supply say 60amp hours

EDIT : was slightly off lol

Amp Hours

The Amp Hour rating tells you how much amperage is available when discharged evenly over a 20 hour period. The amp hour rating is cumulative, so in order to know how many constant amps the battery will output for 20 hours, you have to divide the amp hour rating by 20. Example: If a battery has an amp hour rating of 75, dividing by 20 = 3.75. Such a battery can carry a 3.75 amp load for 20 hours before dropping to 10.5 volts. (10.5 volts is the fully discharged level, at which point the battery needs to be recharged.) A battery with an amp hour rating of 55 will carry a 2.75 amp load for 20 hours before dropping to 10.5 volts.

i have the same issue with my car as its a weekender too.

solar panel charging is how i fixed it up

Edited by Craved
Link to comment
https://www.sau.com.au/forums/topic/130518-battery/#findComment-2415489
Share on other sites
bluer33 Enthusiast

bluer33

Posted
  • Author
Posted
each battery has an amp hours rating.. so it can supply say 60amp hours

EDIT : was slightly off lol

Amp Hours

The Amp Hour rating tells you how much amperage is available when discharged evenly over a 20 hour period. The amp hour rating is cumulative, so in order to know how many constant amps the battery will output for 20 hours, you have to divide the amp hour rating by 20. Example: If a battery has an amp hour rating of 75, dividing by 20 = 3.75. Such a battery can carry a 3.75 amp load for 20 hours before dropping to 10.5 volts. (10.5 volts is the fully discharged level, at which point the battery needs to be recharged.) A battery with an amp hour rating of 55 will carry a 2.75 amp load for 20 hours before dropping to 10.5 volts.

i have the same issue with my car as its a weekender too.

solar panel charging is how i fixed it up

so you dont think its the alternator? how will i know if the afternator is no longer working correctly?

Link to comment
https://www.sau.com.au/forums/topic/130518-battery/#findComment-2415568
Share on other sites
Craved Grand Master

Craved

Posted
Posted

the charge the battery recieves should always be around 14.5v from the alternator.. if its above or well below that it would need to be looked at . ie make sure its belt is not slipping etc

try what Blind_elk said .. the charge value should remain the same from idle to all revs.. shouldn't change dramatically

Link to comment
https://www.sau.com.au/forums/topic/130518-battery/#findComment-2415635
Share on other sites
bluer33 Enthusiast

bluer33

Posted
  • Author
Posted (edited)
the charge the battery recieves should always be around 14.5v from the alternator.. if its above or well below that it would need to be looked at . ie make sure its belt is not slipping etc

try what Blind_elk said .. the charge value should remain the same from idle to all revs.. shouldn't change dramatically

i forgot to mention that i drove the car on sunday for a good hour and today i need to push start. this is the second bettery, both were 1 year old.

Edited by bluer33
Link to comment
https://www.sau.com.au/forums/topic/130518-battery/#findComment-2415658
Share on other sites
mad082 Grand Master

mad082

Posted
Posted (edited)

i've had this happen in a few of my daily drivers. can drive around at night, then next morning they are dead. only happens in winter. its the cold weather that kills batteries. you may've bought the battery 12 months ago, but it may've been sitting on the shelf for 6 months before that. get a new battery and it should be all good. get a century, since they have a warranty.

Edited by mad082
Link to comment
https://www.sau.com.au/forums/topic/130518-battery/#findComment-2416497
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • fatz
      Neil's R33 Gts-t Build

      By fatz · Posted

      Have a vb in honour of the car comming back
    • The Bogan
      Neil's R33 Gts-t Build

      By The Bogan · Posted

      It was a great, but typical track day, and some VB was ingested at the night time debrief 🤪
    • Duncan
      Neil's R33 Gts-t Build

      By Duncan · Posted

      And so, to round this out, I couldn't be happier to confirm @MBS206 has decided to buy the car. He drove down from sunny QLD with a trailer last week and it is off to its new home today. I'll let Matt confirm on next steps but I understand broadly that the plan is to leave it pretty much as is, and just get some quality wheel time with a nicely balanced car that is pretty much track ready. There are a few a jobs still to be done first but nothing too major and I think its a very smart buy Dinner last night at the Paragon with a round of VBs (mostly) for Neil
    • Duncan
      Neil's R33 Gts-t Build

      By Duncan · Posted

      Well, 50 pages and the end of a chapter for this car. We took it out for a shakedown at Wakie yesterday, and everything went well. There were a couple of niggles: - Oil cooler fitting leak - tightened, cleaned, stopped leaking - Radiator cap overflow fitting was leaking....Mark called it, the overflow fitting was threaded in and not tight....tightened, tested and held pressure - Small oil leak at the rear of the block, probably the turbo oil feed - too hot to get at it comfortably but probably just needs to be nipped up - leak at the driver's side rear brake line where it meets the hardline. Fitting wasn't loose, so Matt backed it off and back on, no further leaks - there's also a leak somewhere on the top of the fuel tank, maybe that cross over fuel line - that was has been left to fix when its on a hoist Otherwise than those niggles the car went great, turned great and stopped great so it was a very successful day out. I'm always really nervous when a car first hits the track after a long break, especially with a brand new engine as well but it was great. VID-20251011-WA0007.mp4  Big thanks to @The Bogan who dropped by and helped out, @MBS206 and my nephew Lachlan the apprentice.  Neil's wife Mel also surprised the hell out of all of us by dropping by; she's up in Tamworth these days but was travelling to Melbourne so had plausible deniability for turning up at the garage, it was great to see her but also obviously a bit sad all round.
    • perry_r33
      Skyline R33 Sedan Tail Lights S2 - (2 SETS Available) Silver & Grey

      By perry_r33 · Posted

      Skyline R33 Series 2 sedan tail lights in excellent condition. These are becoming harder to find, especially in this state.    BOTH SETS ARE IN FANTASTIC CONDITION (REFER TO PHOTOS)    ✅ No broken covers or cracks ✅ Lenses are in flawless condition ✅ All rear mounting lugs intact ✅ Comes complete as pictured ✅ Perfect for restoration, replacement, or upgrade   These lights are ready to go, no surprises just quality OEM parts.   These are definitely one of the better sets we have seen in a while. With minimal wear and tear they will come as you see. Bear in mind they are not brand new they are almost 30 years old now. To find them in this condition isn’t easy they can only be obtained on the second hand market.   Australia Wide Postage Available At Buyers Expense. Silver Set:$850 Grey Set:$850 PM Me for purchase or any other questions  IMG_2166.dng IMG_2165.dng IMG_2172.dng IMG_2173.dng IMG_2174.dng IMG_2179.dng IMG_2180.dng IMG_2260.dng IMG_2258.dng IMG_2259.dng IMG_2261.dng IMG_2266.dng IMG_2273.dng IMG_2274.dng IMG_2276.dng
×
×
  • Create New...