Batteries- Need a quick answer

Submitted: Thursday, Aug 12, 2004 at 18:17
ThreadID: 15506 Views:2275 Replies:9 FollowUps:10
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Hi all,
I need a quick answer to a battery question. Need to replace my 100Ah deep cycle battery before Monday. My question is what is a better battery- Optima Yellow top or Lifeline 31T. Also is there any difference in the types (Beside the shape of course)
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Reply By: Nudenut - Thursday, Aug 12, 2004 at 18:36

Thursday, Aug 12, 2004 at 18:36
my auto electrician (my brother-in-law...i dont beleive his sister all that often so he could be telling porkies) swears black and blue that the calcium type are not as good as wet type

believe it or not

(i get them cheap so i dont really care)
AnswerID: 72331

Reply By: drivesafe - Thursday, Aug 12, 2004 at 18:37

Thursday, Aug 12, 2004 at 18:37
First Allan, what are going to use the battery for, and how often and where is the battery going to be mounted and how are you going to charge it.
Might be able to help if you can supply a bit more info.
Regards
AnswerID: 72332

Follow Up By: Allan Mac (VIC) - Thursday, Aug 12, 2004 at 19:00

Thursday, Aug 12, 2004 at 19:00
It is replacing an existing auxillary battery that is used in the wagon the van and Camper. Charged by the wagon on the road and on 240v at home. nothing sinister just a deep cycle battery for fridge lights etc
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FollowupID: 332552

Reply By: mcgra - Thursday, Aug 12, 2004 at 19:36

Thursday, Aug 12, 2004 at 19:36
optima do have a cca amp reading.
not many deep cycle batteries have that.

gra
AnswerID: 72348

Follow Up By: -OzyGuy- - Sunday, Aug 15, 2004 at 09:10

Sunday, Aug 15, 2004 at 09:10
Optima have huge Cold Cranking Amps, however they have very low Amp Hour figures when compared to more conventional Deep Cycle batteries at far less than half of their price.

OPTIMA PERFORMANCE SPECIFICATIONS - D31T and D31A
Voltage 12
Cold Cranking Amps at 0°F - 900
Cranking Amps at 32°F - 1125
CCA (EN) - 975
Capacity (C/20 rate) - Amp Hours 75

As you can see the CCA numbers can be expressed in various ways to make them look better, when it is broken down to (Cranking batteries) CCA's versus (Deep Cycle) Amp Hours it is more obvious that they are not a true "storage" battery.
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FollowupID: 332821

Reply By: drivesafe - Thursday, Aug 12, 2004 at 20:00

Thursday, Aug 12, 2004 at 20:00
Hi again Allan, for what you are going to use the battery for, the added cost of going to an Optima battery is not really justified. There are special circumstances where one of these batteries would be better than a deep cycle battery but your requirements are not more than what a deep cycle battery can handle and is what deep cycle batteries are designed for.
As long as you charge the deep cycle battery properly it will give you all the power you want for a much lower cost and will last just as long.
In the situation that you are going to use the battery for, if you have problems with the deep cycle battery, you would most likely have similar problems with the Optima but the Optima would cost you a lot more to replace.
Regards.
AnswerID: 72357

Follow Up By: Allan Mac (VIC) - Thursday, Aug 12, 2004 at 20:17

Thursday, Aug 12, 2004 at 20:17
Appreciate your replies Drive but if you could read the original post and stick to the question it would be more appreciated . Its not rocket science mate.
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FollowupID: 332563

Reply By: drivesafe - Thursday, Aug 12, 2004 at 21:11

Thursday, Aug 12, 2004 at 21:11
Hi Allan, your right, it's not rocket S but YOU still have not stated WHY you need to go to the more expesive batteries. If, as I put it, you have a specialised need, tell us about it, otherwise it seems to be a case of more money than, and so on!
And if so, good luck to you
Regards
AnswerID: 72383

Follow Up By: Allan Mac (VIC) - Thursday, Aug 12, 2004 at 22:07

Thursday, Aug 12, 2004 at 22:07
Ok You win drive. Got plenty of money so which is the better battery. so simple!
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FollowupID: 332576

Reply By: drivesafe - Thursday, Aug 12, 2004 at 23:55

Thursday, Aug 12, 2004 at 23:55
Hi folks, like most people who visit sites like this, I come he because I want to find out from others with more experience in given field, about subjects for which I lack the knowledge of. Like about tyres, bull bars, long range fuel tanks, suspension systems, and so on and so on.
But I also view it as my responsibility and the responsibility of other who use sites like this, to return the favour where we can and try to assist others.

Now with this in mind, I see a posting from someone who wants to replace a deep cycle battery with an Calcium type battery and a question comes to mind as the two different battery types are very rarely used in similar usage conditions.
Has the person been using the wrong battery for a give purpose or is this person about to replace the correct battery with a grossly more expensive battery that is not suited to the chore it is about to be use for.
So not having much knowledge in this field, I asked a simple question in an attempt to try and help someone avoid making an expensive mistake.
Hey, I’ve only been designing, manufacturing and supplying the trade with automotive electronics for over 25 years and for the last 15 years supplying battery charge control systems to the trade for 4WDs, caravans and campers, motor homes, emergence vehicles, marine application and to the mining industry, so I am not an expert but I do have some expertise in this area.
Now I don’t sell batteries but over the last quarter of a century I have come across 1 or 2 ( THOUSAND )
but what the hell do I know.

Allan, I offered you some free info for which you could have either taken it or left it. I was not trying to take the P### out of you and the same info could have been supplied by any reputable battery supplier. But I suspect you’ve gone to some shonk who has seen a sucker walk in and he has filled you with a truck load of house do-do and you have taken it hook, line and sinker.
Buy what you want but the deep cycle battery will work far better that a calcium battery will in the situation you require the battery for.
The calcium battery WILL work but not as well as the deep cycle will and the deep cycle will do it for much less and probably for longer.
Again good luck to you.
AnswerID: 72409

Follow Up By: V8troopie - Friday, Aug 13, 2004 at 01:15

Friday, Aug 13, 2004 at 01:15
Now, that's what I'd call a well worded reply!
onya, drivesafe.

klaus
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FollowupID: 332596

Follow Up By: Allan Mac (VIC) - Friday, Aug 13, 2004 at 09:41

Friday, Aug 13, 2004 at 09:41
Good morning Drive.
I have taken what you have said on board and I accept your views. I posted the question in good faith and as a simple question on the merits of 2 batteries side by side not to establish the whole gambit of how and why batteries fail and/or there specific functions.
Now to clarify a few points I run and have run a 100a/h deep cycle battery for well over 5 years , The brand of battery is a Hybralec SLA and has given good service over this time. it is maintained by a Hybralec smart charger and . The son borrowed the battery for a long term trip and had no charging facilities and has now killed it. (thats the short story) It is my intention to replace the batteriy with another Hybralec, however in doing my research and checking the forum post I noticed that there was some posts about their useage of the Optima and the Lifeline batteries. hence my question .pure and simple. and as a final word, I take umbrage at the comments given about being a sucker and getting taken in with some bull**** from a sales person etc.
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FollowupID: 332623

Follow Up By: drivesafe - Friday, Aug 13, 2004 at 22:17

Friday, Aug 13, 2004 at 22:17
Hi Al, I don’t take umbrage at the sort of answers I hear or see. Been dealing with Joe Public for more than 30 years, but if you do, then try not slinging off at others “ It’s not rocket science “.
For most people, even many in the battery business, it might as well be rocket science for the little they know and I was not have a go at you but as other have stated, why would want a square peg for a round hole?
The calcium batteries are intended for specialised jobs and I enquired if you had such a situation otherwise you were wasting your money and I and others were trying to be of some assistance to you, Stupid us.
More to the point, this is a public site so others would be reading the postings. I for one, would not want someone trying to seek ideas about dual battery systems get the wrong idea and fork out for something that was going to cost a fortune and was not going to fill there need as well as something else that was available for a lot less.
Any way have fun with your square peg!
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FollowupID: 332712

Follow Up By: Flash - Saturday, Aug 14, 2004 at 11:06

Saturday, Aug 14, 2004 at 11:06
IMHO
drivesafe's original reply was very reasonable, and obviously he's trying to offer good advice.
Nobody is forced to take anybody's advice- (and nobody HAS to waste their time giving it) but if you don't like what is offered you don't have to be bordering on rude when anybody replies to a question, with what may - or may not in YOUR opinion- be good advice.

It's just good manners!

Allan Mac- if you don't have something nice to say, then say nothing, it's that easy.

Well said drivesafe! (And BTW I agree with your advice- it's spot on)
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FollowupID: 332754

Reply By: Member - Sand Man (SA) - Friday, Aug 13, 2004 at 01:02

Friday, Aug 13, 2004 at 01:02
Hi Alan,

One thing that hasn't been made apparent is the Capacity of the Optima compared to your old battery.

The standard Optima Yellow top is rated at 55Ah as opposed to your 100Ah one.
They do have a "31 Group" Yellow top but even that is only a 75Ah Unit and its physical size is 326 x 165 x 242, Will this fit in your existing Cradle?

Check here for the full specs:-
http://www.optimabatteries.com.au/Products/Yellowtop.htm
Bill


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AnswerID: 72412

Reply By: -OzyGuy- - Friday, Aug 13, 2004 at 01:33

Friday, Aug 13, 2004 at 01:33
Allan you posted -> "My question is what is a better battery- Optima Yellow top or Lifeline 31T. Also is there any difference in the types (Beside the shape of course)"

The answer to your question is they are both AGM's and the Concorde 31T battery at 105 a/h is the better battery.

HOWEVER, I totally agree with driveSafe, I would want to know why you must change your existing battery? is it 5+ years old?
Is it being correctly recharged by your alternator?
Is your Isolator delivering the right charge to your existing battery?

You could get 300+ Amp Hours from a decent genuine Deep Cycle battery for the same price if you were not wanting an AGM battery.

I would ask you why you want an AGM and not a more conventional DC battery.
AnswerID: 72413

Follow Up By: Allan Mac (VIC) - Friday, Aug 13, 2004 at 10:15

Friday, Aug 13, 2004 at 10:15
Thanks for your reply Ozy
see my last reply to drivesafe.
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FollowupID: 332626

Follow Up By: Bonz (Vic) - Friday, Aug 13, 2004 at 17:50

Friday, Aug 13, 2004 at 17:50
Al, from what I know the deep cycle will a lot of stuff for a longer time, whoilst the other will belt out the CCA if you need them, sort of like running a fridge and light and son on, against running a winch for a shorter time, one needing amps for ages the other needed lots of amps for less time, QED
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FollowupID: 332674

Reply By: Magnus - Friday, Aug 13, 2004 at 18:11

Friday, Aug 13, 2004 at 18:11
Well I was going to reply, but i can't compare those two specific batteries.

Sorry bout that

Cheers

Magnus.
AnswerID: 72492

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