Need a new battery

My brother can sell you one for $5,000, 40v

I use costco batteries 48 month replacement warranty and no questions asked. Walk in and tell them its no good and they dont replace the battery but they reimburse you then you got get another and buy it and that starts the warranty all over again.

$110.00 and I expect at least 5 years so I'm happy with that. I think I could double that considering it's a Cat battery and I another brand last 10 years that was also reconditioned.
I will say that the lithium jump starter I got works great! It started my welder 6 to 8 times with a dead battery on a single charge and even started the Cat a few times no problem when the battery was only showing between 8 .7 and 9.3 volts. The welder has a magneto so doesn't rely on the battery for anything other than starting. The Cat is basically the same being a diesel. It started my 6.0L gas water truck but the battery was so low that it quit running after about 30 seconds. The lithium jump starter doesn't continue to supply power like a conventional battery type jump starter. What I did was boost the water truck with my pickup and and let it run long enough to charge the battery so my battery charger would work. Then I left the battery charger on for about an hour and then the water truck would keep running after it was boosted.

cfherrman said:

For a 3204 I'd just get 2 group 65's

Really hate 4d and 8d batteries, I run 3 of the semi batteries over a 8d

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I used 2 semi batteries in place of s 4d batteries for a bit, but found in the winter they don't have anywhere close to the cranking power and low voltage light would constantly come on after a cold start, not worth the bit of savings to me. Also assuming they likely wouldn't last as long.

suladas said:

I used 2 semi batteries in place of s 4d batteries for a bit, but found in the winter they don't have anywhere close to the cranking power and low voltage light would constantly come on after a cold start, not worth the bit of savings to me. Also assuming they likely wouldn't last as long.

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What engine

I ran two group 31s in the Allis loader, did fine and easier to handle than a 8D or wrestling with four group 4 6v units 1000cca each spun it like a top.

Is 31 the 3/8" post common semi batteries?

Can get either stud or post

I have 2 8D's in my tractor, and one in my TLB which are new by prior owners. Once these go they will be replaced with 31P batteries. Battery technology is much better now than when the tractor(s) were new. I've done mostly away will all the 6VDC batteries in my antique trucks standardizing on group 31, or 29 series.

I have rather new 65's in my rig pickup, once they go they are getting 31's with the stud in case of a dead battery after working all day I can pull a couple 31's out of the rig and start the pickup.

This has happened a few times before and it sucks when your hot and tired and have to wait 30 mins - 1 hr for a jump.

Hi, new here and am fascinated by the battery discussion. A year old, but, I dont think anything has changed ; jump starting, corrosion, 2 people to lift the batteries, self discharging from non use, not wanting to spend more than a couple hundred bucks...
Sounds like the same old wagon wheel story.
All golf carts used to use lead batteries, now, over half are using lithiums.
So, whats preventing the heavy equipment crowd from using them ?? I'd like to know.
Does anyone here know what the max current draw is from the 24V starter ?

dirt2dig said:

Hi, new here and am fascinated by the battery discussion. A year old, but, I dont think anything has changed ; jump starting, corrosion, 2 people to lift the batteries, self discharging from non use, not wanting to spend more than a couple hundred bucks...
Sounds like the same old wagon wheel story.
All golf carts used to use lead batteries, now, over half are using lithiums.
So, whats preventing the heavy equipment crowd from using them ?? I'd like to know.
Does anyone here know what the max current draw is from the 24V starter ?

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Cost, availability, supply chain, and alternator technology. Current draw depends upon the size of the engine. 200 Amps to 2000 amps.

There already is some battery powered heavy equipment. One of the big issues is how to charge the batteries on the job site? Nobody wants to haul machines to a charging station and back to the jobsite everyday. Might help to do a little research before posting a question.

A serious concern in general, fires with Lithium batteries. Insurers do not want to cover those as are the achilles heel of these batteries.

Cost is probably the big one. 2 seconds on Google and I'm seeing 12 volt lithium batteries with a 750 CCA rating are $900. I can pick up a similar rated CAT battery for $210. Almost a fifth of the cost.

Nobody will pay $2000-2500 for an 8D size lithium battery when they can buy a regular lead acid battery that does the job just as well for $500 or less.

Li batteries should last longer but you don't get the goodie out of them if they are stolen.

OK, lets dig into this some more...
Are we talking 12V or 24V systems ?
I'm assuming 24V here.
COST (purchase )- Lets use a 4D size as a standard; If the sole purpose is to start the engine, and assuming 1500amps will start 99% of the engines, ( and all the specs I see from the lead batteries are 1500A tops ) using CAT as a guide..., $405 for the model 153-5910. times 2 to get 24V , so, $810. am I right ?
the AGM varieties are going for about $700... x's 2 = $1400
COST - downtime for dead , discharged, time replacing and servicing...????

Fires - non issue

Alternator - drop in replacement

Availability - apparently a lithium alternative is not available , right ?

Cycle life - Lithium would be 3 x's longer. Nobody figures that into the cost though....

Weight - two 4D 12V batteries will weigh about 260 lbs together right ?, so, installing them requires a crane right ? ... a single 24V lithium battery with 1500 cranking amps would weigh about 33 lbs.

Charging - reading from this forum the lead acid batteries require charging, recharging a LOT , especially so after non use of the equipment for a period of time. equals more downtime.. cost ?
Not needed with lithium. ( assuming their is no parasitic drain )

Am I missing anything ?

Can't think of a single time I've needed a crane to install/remove 4D batteries (or even 8D batteries).

Let's go with lith lasting twice as long in my area batteries go bad in summer to much heat. lith is not immune to heat

So when the battery goes bad where do you buy an off the shelf lith battery and keep working that day

AzIron said:

Let's go with lith lasting twice as long in my area batteries go bad in summer to much heat. lith is not immune to heat

So when the battery goes bad where do you buy an off the shelf lith battery and keep working that day

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Wonder how they do in 35 below as well?