Best Battery Replacement Options

[Nihilation]

100% sure the larger post is positive. Maybe I just need to crank down harder on the cable connector nuts but worried about stripping.

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[Radekxpl]

Smaller diameter post is negative, correct? That's how I have it.

https://youtu.be/Y94W6ezz_bA

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I don’t remember of the top my head right now, if it’s slides off even when it’s tighten then it’s mean wrong post is on that side


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[Nihilation]

Did you try to swap them because they are not the same size one is slightly bigger the. The other therefore if one is one the wrong side it will slide off, I had the same experience.


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Smaller diameter post is negative, correct? That's how I have it.

https://youtu.be/Y94W6ezz_bA

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[Radekxpl]

So I found that after tightening down the battery cables, it's not snug against these posts. I can pull them up and off. Not sure where my problem lay, the XS posts or the cable connectors.

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Did you try to swap them because they are not the same size one is slightly bigger the. The other therefore if one is one the wrong side it will slide off, I had the same experience.


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[Nihilation]

These will work https://amzn.to/3szixFy


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So I found that after tightening down the battery cables, it's not snug against these posts. I can pull them up and off. Not sure where my problem lay, the XS posts or the cable connectors.

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[eacmen]

Anitygravity batteries are supplied with threaded nuts blocks to mount these posts so they these will work, you can see it in here as well. https://youtu.be/tydyRp3vs0E


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Awesome. Our battery came with the car so I wasnt sure. Those threaded blocks in the video are much better than what I linked. If i had to do it again I would just take a T nut used for aluminum extrusion and grind it down on the bench to fit.

[Radekxpl]

I don’t think the terminal posts are threaded. You might need nuts to go under the battery post for that m6 bolt.

FYI, I used this for securing the CTEK charger leads to the other 2 battery posts:

BikeMaster Battery Bolt 6x10mm Bolt/Rectangle Nut (2 Sets) B-04 https://www.amazon.com/dp/B004C1ZRMO...ing=UTF8&psc=1

Anitygravity batteries are supplied with threaded nuts blocks to mount these posts so they these will work, you can see it in here as well. https://youtu.be/tydyRp3vs0E


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[eacmen]

These will work https://amzn.to/3szixFy


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I don’t think the terminal posts are threaded. You might need nuts to go under the battery post for that m6 bolt.

FYI, I used this for securing the CTEK charger leads to the other 2 battery posts:

BikeMaster Battery Bolt 6x10mm Bolt/Rectangle Nut (2 Sets) B-04 https://www.amazon.com/dp/B004C1ZRMO...ing=UTF8&psc=1

[Nihilation]

These will work https://amzn.to/3szixFy


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Thanks!

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[Radekxpl]

Those with an Antigravity battery -- where did you get the terminals to connect the positive and negative leads? Apparently Antigravity is out of stock.

These will work https://amzn.to/3szixFy


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[Nihilation]

Those with an Antigravity battery -- where did you get the terminals to connect the positive and negative leads? Apparently Antigravity is out of stock.

[Will]

I just went with a OE replacement from Walmart. AGM H7, for $169.77 (link).

[eacmen]

Thought the battery needed to be programmed after it's replaced. If I'm correct, are there any problems doing that with the ATX30 battery?

Edit: Maybe it's just newer BMWs that require battery programming.

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Only newer bmw models require programming to reset the voltage level needed to charge a new AGM.

electrically The ATX 30 is a drop in replacement, but I would not call it same spec to OEM. You will need a new bracket to install. See my photos earlier in the thread.

[Radekxpl]

Atx-30 all the way awesome battery went with this bracket, works perfect, enables you to still use restart function https://youtu.be/tydyRp3vs0E

[Nihilation]

Thought the battery needed to be programmed after it's replaced. If I'm correct, are there any problems doing that with the ATX30 battery?

Edit: Maybe it's just newer BMWs that require battery programming.

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