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Unread 09-09-2010, 09:31 PM   #1
YJ89jeepTX
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Sears diehard platinum Question (for Winch)

DieHard Automotive Battery, Platinum P-4 - Group Size 34/78DT is this the sears model deep cycle battery that everyone is using for best winching options? if not which one is, bc im bout to buy one? thanks
http://www.sears.com/shc/s/p_10153_1...034/78#ppspecs

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Unread 09-09-2010, 09:55 PM   #2
CRAWLING 98
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It's the one that I use on my jeep (with winch). Use to have a Yellow Top but am much happier with the Platinum
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Unread 09-10-2010, 12:55 AM   #3
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Quote:
Originally Posted by YJ89jeepTX View Post
DieHard Automotive Battery, Platinum P-4 - Group Size 34/78DT is this the sears model deep cycle battery that everyone is using for best winching options? if not which one is, bc im bout to buy one? thanks
http://www.sears.com/shc/s/p_10153_1...034/78#ppspecs
Yes, that is exactly the one.... the 3478-DT.
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Unread 09-10-2010, 02:58 AM   #4
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This battery has a well documented flaw in that the internal post connectors become detached from road (and off road) vibrations. Many guys on my truck forum who have bought this battery have been stranded by this issue. One guy posted he had gone through three batteries in less than two years due to this. The Sears automotive tech told him he sees it constantly and was remiss as to why the manufacturer hasn't redesigned the battery to fix the issue. He's had it replaced at no charge each time, but didn't help him when his truck wouldn't start.

This is a powerful battery made for vehicles with multiple accessories, but has a very serious design flaw...
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Unread 09-10-2010, 11:33 AM   #5
Jerry Bransford
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Of all many people I know who switched to that battery, which was what I had in my '97 TJ as well, I know of no one with that problem.
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Unread 09-10-2010, 05:10 PM   #6
hammerz71
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Quote:
Originally Posted by Jerry Bransford View Post
Of all many people I know who switched to that battery, which was what I had in my '97 TJ as well, I know of no one with that problem.
Seriously? There are threads on it on just about all the truck forums I belong to. A couple good ones on the Forum where I am an admin.

Heck, read the reviews on Sears' own website and you'll see more than a few who have experienced it...

http://www.sears.com/shc/s/p_10153_1...cj#reviewsWrap
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Unread 09-10-2010, 10:04 PM   #7
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Quote:
Originally Posted by hammerz71 View Post
Seriously? There are threads on it on just about all the truck forums I belong to. A couple good ones on the Forum where I am an admin.

Heck, read the reviews on Sears' own website and you'll see more than a few who have experienced it...

http://www.sears.com/shc/s/p_10153_1...cj#reviewsWrap
That would be because you do not attach a winch to side posts and Jeeps do not use a side post battery to begin with.

There is a major design flaw in side posts to begin with(can not support high amp loads) and GM(the biggest user of side post batteries) finally got a clue and has went away from that design and alot of there battery problems has also went down drastically from going to a top post battery over a side post battery.
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Unread 09-10-2010, 10:45 PM   #8
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As great as it is to use prior knowledge of products, it is times like these that we see why he have to speculate products better based on application. I am glad to see tjkj2002 point out the post location. It makes a big difference in this scenario. That is probably why Jerry has not seen/experienced any issues, while hammerz71 has seen multiple.
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Unread 09-12-2010, 11:14 AM   #9
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do i need to modify my batter trey to fit that battery?
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Unread 09-12-2010, 11:19 AM   #10
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Quote:
Originally Posted by YJ89jeepTX View Post
do i need to modify my battery tray to fit that battery?
Not at all, it's a Group 34 size battery which is the factory size.
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Unread 09-12-2010, 11:31 AM   #11
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Has anyone had experience with this Sears model? I like the extra post for accessories.

http://www.sears.com/shc/s/p_10153_1...3&blockType=G3
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Unread 09-12-2010, 11:47 AM   #12
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Nevermind, I see that is a marine battery. I also, read how Jerry used a jumper between like polarity to get around burning the side posts.

But I would like to know the reasons a deep cycle battery doesnt work well for us.
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Unread 09-12-2010, 12:01 PM   #13
YJ89jeepTX
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a complete deep cycle only battery is not meant for the cranking amps for starting a vehicle or something along those lines...
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Unread 09-12-2010, 02:53 PM   #14
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Quote:
Originally Posted by YJ89jeepTX View Post
a complete deep cycle only battery is not meant for the cranking amps for starting a vehicle or something along those lines...
That is correct, a pure deep cycle battery won't hold up as well as a conventional or dual-purpose battery will. Deep cycle batteries are made to recover without damage after being totally discharged but that ability compromises their ability to hold up long as a starting battery.
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Unread 09-22-2010, 08:01 AM   #15
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Originally Posted by Tick View Post
Nevermind, I see that is a marine battery. I also, read how Jerry used a jumper between like polarity to get around burning the side posts.
Where did you read this? I'm interested in reading it as well as I just bought this battery 3 weeks ago when my other DieHard died!

Am I correct in understanding that I shouldn't hook my winch up to the side posts?
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