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Old 06-11-2021, 02:46 PM   #1
97sl2DOHCaut1.9
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Default batt post and jumpstarting

Hi

Back drivin the Saturn again after few yrs . . . got a que:

How do do you deal with the GM side posts as far as charging and jumpstarting ??? I cant seem to get a bite on the bolt ever . . . is there a common mod for this ???

Also, whats the consensus on battery chargers here . . . I just got one of the Schumacher 4-6a 40a 225a (engine start) chargers. Will these start a dead battery? is it safe to do that ?

Thanx
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Old 06-11-2021, 03:22 PM   #2
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Default Re: batt post and jumpstarting

Has somebody modified/replaced the battery cables? The stock side-terminals are easy to clip onto. Maybe post a picture of the terminals and you charger/jump-start clips.

As far as jump-starting a "dead" battery, it depends on why it is low on voltage and how low it is If the battery has a solid internal short (fairly rare, thankfully), then jumping it may make for a lot of drama.
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Old 06-12-2021, 03:05 PM   #3
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Default Re: batt post and jumpstarting

GM battery bolts require clamps with a special provision for GM batteries to work the best. The simple clamp type you can get anywhere/everywhere often don't clamp around the ring without serious effort.

If you look close at this set that Lowes let me find quick they have an extension on the end for side-posts.

I was always annoyed by the GM batteries when I had to drive their vehicles when I was younger...now I swap them out as soon as I'm allowed/able to.
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Old 06-12-2021, 05:44 PM   #4
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Default Re: batt post and jumpstarting

If you want to do away with the side posts, but not redo the ends of the cables completely, you can push the bolt that attaches to the battery out past the plastic cover. Then you can slip the plastic cover off revealing the O-ring style end. Go get yourself some side post adapters and screw them into the battery posts.

Now you have yourself a "top post" retrofit side post battery! I used to do this when I put amps and speakers in my cars, made wiring them in a whole lot easier and made it even easier to jump if I needed to.

If you don't mind a bit of extra work, you can always cut the ends off the cables and replace them with top post style ends, but get good ones that won't come loose. Then get yourself a top post battery of your liking (matching as close to your CCA of course).

The charger you got should start it, just make sure you have the Boost/Start option selected and wait about 5-10 seconds to let it build up a charge in the battery. I personally would let it run a cycle and charge the battery unless you HAVE to move it right this instant.
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Old 06-12-2021, 05:52 PM   #5
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Default Re: batt post and jumpstarting

Here's a pic of my current battery (don't ask me why the dealer put a Delco battery in either... but I guess I didn't have to pay for it), I'm planning on adding a small amp for some speakers. Just wanted to show what it looks like when you pull the plastic sleeve off the wire.

I'm just using the original lug right now, but I'm going to use a different one once I get around to doing the wiring.
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Old 06-21-2021, 01:00 AM   #6
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Default Re: batt post and jumpstarting

The SidePost innovation was implemented to avoid the battery
connections on Top of battery corroding, due to acid fumes from
the cells.


Although the Saturn 'S' electrical system is quite robust,
Fast / Boost high amperage charging is Asking for trouble.

.............................................
Clean terminal connections decrease maintenance (particularly if they are coated
with grease, preferably synthetic, as silicone dielectric).

Oxide coatings on metals tend to be insulators, while clean/shiny metal surfaces conduct well.

The 5 amp charger will normally suffice over a couple hours (check electrolyte level, top up with purified water).

Question is WHY did battery discharge.

Main reason for dead Starter, is starting with weak/low battery.
Main reason for Low/dead battery, is bad/weak alternator (usually brushes wear out, sometimes diodes fry
from reverse polarity when 'jump' charging.

GOOD to have shop test Charging System for operation, or monitor with volt meter.

Last edited by TomM96; 06-21-2021 at 01:13 AM. Reason: fergat un
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Old 06-21-2021, 06:37 PM   #7
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Default Re: batt post and jumpstarting

And yet I continually see side post batteries corroded and nasty just like any other battery. Thanks, GM.
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Old 06-22-2021, 11:17 PM   #8
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Default Re: batt post and jumpstarting

Quote:
Originally Posted by cujoe_da_man View Post
And yet I continually see side post batteries corroded and nasty just like any other battery. Thanks, GM.
They've probably been over-tightened and cracked the internals letting acid out. I had acid traveling down the inside of the wire on my truck, so I ended up replacing the wire.

They are a bit fiddly to get jumper cables on well, but over all I don't hate the design.
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Old 06-23-2021, 04:53 AM   #9
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Default Re: batt post and jumpstarting

I'm sure replacement posts are available that make getting a bite easier.

I don't know how valid (or wise) this is but this "hack", using mini vice grips, looks like it worked for this guy.

NSFW (language)

https://www.youtube.com/watch?v=mfDG0bcJ4Tk
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Old 06-23-2021, 07:36 AM   #10
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Default Re: batt post and jumpstarting

Cujoe-

Yes; many sidepost batteries Leak -- this completely contradicts the
entire design concept.

Also many sidepost battery terminals are just soft lead, which can
readily strip threads.
Autozone batteries (some) have steel Thread Inserts inside the lead
side terminals, which do not easily strip out.
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Old 06-24-2021, 09:25 PM   #11
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Default Re: batt post and jumpstarting

Quote:
Originally Posted by TomM96 View Post
Cujoe-

Yes; many sidepost batteries Leak -- this completely contradicts the
entire design concept.

Also many sidepost battery terminals are just soft lead, which can
readily strip threads.
Autozone batteries (some) have steel Thread Inserts inside the lead
side terminals, which do not easily strip out.
I found a torque spec for sideposts at one time. It was not very much.
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Old 06-24-2021, 10:37 PM   #12
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Default Re: batt post and jumpstarting

They have only 5/16" hex on a 3/8"-16 fastener for a reason.

It seems like people either love those side-posts, or hate them. I have never had a problem with them, going on 60 years now. No leaks like the top posts, and easy to R & R the cables. I do admit, though, that most of the problem with cables on top post is because of the design of the cable terminals, not the posts themselves.
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Old 06-25-2021, 01:54 AM   #13
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Default Re: batt post and jumpstarting

I found these while Goggling:

https://www.ebay.com/itm/224378718753

I don't have these, but rather the brass extenders for connecting more wires, on my truck. I put the second big positive wire under the outer, second nut, along with a pigtail for a maintainer. The SL2 is factory stock.

Either solution means being more careful about tools possibly shorting the battery, although the ebay "bolts" do have caps. I use the battery as little table top for tools or coffee.
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Old 06-26-2021, 01:27 AM   #14
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Default Re: batt post and jumpstarting

Thanks for the replies . . .

I went with these post adapters Napa pt # 728209 around $5 (pic below)

Tom can you elaborate more about fast charging & s-series ??
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Old 06-26-2021, 10:48 AM   #15
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Default Re: batt post and jumpstarting

That looks pretty good, keeps it clean and makes it easier to get your clamps on if you need a jump
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