Re-sealing the battery

[Philip]

Sorry, I have no installation pics, but if you have the right tools, the job will be pretty simple.

All you need it a properly sized butyl tape. The R-pack battery uses a butyl sealant on the bottom cover. The A-pack, apparently, uses it on the top cover as well.

I lucked in and bought exactly what was needed the first time -- CRL Sunroof Butyl Sealant Tape.



It is about 9mm wide and 1.5mm thick, and long enough. One roll will probably let you seal a battery cover at least four times.

 

[Philip]

Also, do not let the bottom cover be out in the open long. It has a desiccant package, which would become useless if exposed to the ambient humidity for too long. I kept my entire bottom cover in a large Ziploc bag while working on the battery.

 

[Bloak]

It has a desiccant package,

Interesting.
Could you see the color of desiccant or was it enclosed out of sight?
If opening the battery, the desiccant should be replaced or regenerated, pending if it was depleted

 

[Philip]

Interesting.
Could you see the color of desiccant or was it enclosed out of sight?
If opening the battery, the desiccant should be replaced or regenerated, pending if it was depleted

It's in a white baggie, most likely silica gel.

@Mark911 says you can buy new ones at McMaster.com

 

[Judaslefourbe]

@Mark911 says you can buy new ones at McMaster.com

Confirmed.

 

[snydes]

FYI the roll of butyl that Philip linked above will seal 3 covers.

 

[Matt]

Not sure why it is rotated but you can see the original butyl tape if I am not mistaken.

 

[Philip]

I have rotated the picture back. It is showing the top of the battery, which has a simple rubber reusable seal. The butyl tape seal is at the bottom cover. It looks like a black mess when unsealed.

 

[Matt]

Again sideways. My apologies.

 

[snydes]

Any picture that is taller than it is wide uploads rotated, it’s not you!

 

[Philip]

Any picture that is taller than it is wide uploads rotated, it’s not you!

I think this is accurate. Steve and I rotate them when we see them. The add-on that does that is too buggy to release it to everyone without explanations and restrictions.

 

[Duramax327]

So there’s 51 percent humidity according to multitool in my battery I assume this is what I need todo next since I have a code 37 and cleared it once? And it came back.

 

[Dirt-E]

I'm additionally interested to know what thermal paste to use (and how much) when resealing my pack after balancing and replacing the zero module.

Will any Butyl tape with similar dimensions work? The link given is OOS with no anticipated restock date.

 

[Philip]

I'm additionally interested to know what thermal paste to use (and how much) when resealing my pack after balancing and replacing the zero module.

Will any Butyl tape with similar dimensions work? The link given is OOS with no anticipated restock date.

Try this:

CRL RM140 Sunroof Butyl Sealant Tape

Buy CRL RM140 Sunroof Butyl Sealant Tape online at DKHardware.com. Our Automotive Hardware category offers a great selection of Auto Glass Sealants, Butyls, and Tapes products at the best price!

www.dkhardware.com

 

[Rashid510]

@Dirt-E its Dow Corning 340 thermal paste.

Ideally you want to use a thick bead to re apply on to the bottom cover of butyl.

 

[Trialsman]

I know the butyl was used for the cover, would silicone seal also do the job? It is a very aggressive adhesive. Just a thought.

 

[Philip]

I know the butyl was used for the cover, would silicone seal also do the job? It is a very aggressive adhesive. Just a thought.

Silicone is like glue. You will never open it again, LOL!

 

[Trialsman]

A little trick is to soak the dried silicone with a towel saturated in Stoddard fluid (parts cleaner). It will dissolve the bond and you will be able to peel it away easily.

When I dropped my battery 1-1/2" for a lower center of gravity, I needed to slightly "reshape" the bottom cover to clear the side frame members. Not wanting to apply heat to an unknown structure, I removed the bottom cover first. After cleaning and reshaping with a heat gun, I put it back together with silicone seal. I put on a thick bead and laid the cover on. After about twenty minutes It was simi-solid and I then snugged down the bolts. In that way I did not squeeze out all the seal between the surfaces. This is on the EXR I use for the woods, and so far - so good.