Car Battery and Cold Cranking Amps
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From: John_H on 29 May 2010 22:45 Diesel Damo wrote: >On May 30, 10:36�am, John_H <john4...(a)inbox.com> wrote: >> >> Unless you plan on replacing the cars in the near future do yourself a >> favour and spend a bit extra for calcium techology... Delkor or Alco. >> The same size battery will have an even higher cranking current. > >Well here's the thing. Last time (3 years ago) I tried to do exactly >that. Rang up about them and was told that they do have them, but when >I arrived the response was told "well, there really isn't such a thing >as 'calcium batteries'." So without any technical knowledge of them >myself, I wasn't able to argue about it. > >But now you've mentioned Delkor and Alco, I can at least look them up >and hopefully have more luck this time. The leading battery manufacturers used to give 3 year pro-rata warranties, which has long been replaced with a one year unconditional warranty. Most conventional lead acid batteries last for one year and a fair proportion last three years or better. It's the 30% that fail between 2 and 3 years not covered by warranty that stuffs the economics. There probably isn't a great deal of difference between the longest lasting lead antimony (conventional) and a typical lead calcium (which is what the conventional battery manufacturers base their claims on). The difference in _average_ life is better than two to one in my experience. Most battery manufacturers now seem to offer calcium tchnology, but I've stuck with ones who've been around the longest. Google should find you a close by supplier of either Delkor or Alco. The original calciums were made by Delco in the US and the first set I ever had (around 1981) lasted around seven years. AFAIK the Delcos became Delkor which are made in Korea, as are Alco. I've had excellent results from both but get a better price on Alco from my preferred supplier. Alco also make batteries other than calcium, AFAIK Delkor don't. -- John H
From: Clocky on 29 May 2010 22:46 Diesel Damo wrote: > Is it possible to have too many cold cranking amps? I mean, can it > harm a starter motor? > > NRMA guy replaced my dead 700CCA one with an 850, and it kicks over so > quickly now I practically flinch at turning the key. But I was > thinking of getting something similar for the V6 petrol Jackaroo, > since it's battery has probably almost had it too (bought at the same > time as the Hilux one). > > The only reason is just the obvious advantage of having > interchangeable car batteries. But not if it's going to cause > potential harm to the starter motor in the Jackaroo. No, the starter motor only draws what it needs. Ofcourse, if the starter motor draws much more then normal then there is an issue with the starter motor itself or the load on it. A higher CCA is a good thing.
From: John McKenzie on 30 May 2010 11:48 Diesel Damo wrote: > > Is it possible to have too many cold cranking amps? I mean, can it > harm a starter motor? I've always run truck sized batteries in any larger car (admittedly not on the datsun 1200). I've had to modify the tray to fit it, but the payoff is I've gotten over 10 years out of the current one, and it was a daily driver, then got parked for a good 12 months and never started (long story) and started first crack when i got motivated again, and still going strong. And that's been fairly typical for me with them -- John McKenzie tosspam(a)aol.com abuse(a)yahoo.com abuse(a)hotmail.com abuse(a)earthlink.com abuse(a)aol.com vice.president(a)whitehouse.gov president(a)whitehouse.gov sweep.day(a)accc.gov.au uce(a)ftc.gov admin(a)loopback abuse(a)iprimus.com.au $LOGIN(a)localhost I knew Sanchez before they were dirty root(a)mailloop.com $USER@$HOST $LOGNAME(a)localhost -h1024(a)localhost abuse(a)msn.com abuse(a)federalpolice.gov.au fraudinfo(a)psinet.com abuse(a)asio.gov.au $USER(a)localhost abuse(a)sprint.com abuse(a)fbi.gov abuse(a)cia.gov
From: John_H on 31 May 2010 00:15 John McKenzie wrote: > >I've always run truck sized batteries in any larger car (admittedly not >on the datsun 1200). I've had to modify the tray to fit it, but the >payoff is I've gotten over 10 years out of the current one, and it was >a daily driver, then got parked for a good 12 months and never started >(long story) and started first crack when i got motivated again, and >still going strong. And that's been fairly typical for me with them It's also the reason why the same batteries used in a 24 volt system typically last much longer than they do in a 12 volt sytem. A 24 volt starter only draws half the amount of current from batteries with the same CCA. Calcium technology batteries also have a much higher CCA than conventional batteries of similar size... which might be at least part of the reason for their vastly lower failure rates. -- John H
From: Kev on 1 Jun 2010 03:08
John_H wrote: > John McKenzie wrote: >> >> I've always run truck sized batteries in any larger car (admittedly not >> on the datsun 1200). I've had to modify the tray to fit it, but the >> payoff is I've gotten over 10 years out of the current one, and it was >> a daily driver, then got parked for a good 12 months and never started >> (long story) and started first crack when i got motivated again, and >> still going strong. And that's been fairly typical for me with them > > It's also the reason why the same batteries used in a 24 volt system > typically last much longer than they do in a 12 volt sytem. A 24 volt > starter only draws half the amount of current from batteries with the > same CCA. > > Calcium technology batteries also have a much higher CCA than > conventional batteries of similar size... which might be at least part > of the reason for their vastly lower failure rates. > I just replaced my "supercharge" brand calcium battery after almost 6 years, was a 780cca, Auto Elec replaced it with a 660cca, says it is just as good stating that manufacturers rate them differently. but I am sceptical. I did like the semi sealed Calcium with the full cover over the breathers. Now I have to make a cover for the new battery to stop acid splashing/getting on the bonnet when offroading(despite what Manufacturers say they ALL do it) Kev |