Author Topic: Tire presser sensor - how it works  (Read 8605 times)

Offline jonathan

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Re: Tire presser sensor - how it works
« Reply #15 on: May 17, 2013, 02:45:37 pm »
Yeah I tried that - scuffed it up and tried to solder - it won't stick. I pitched the battery I tried to solder on and just used a different one. The washers are thick enough that they make contact. My worry is the plastic encasing coming loose. *goes and wraps more tape*


It can be done.


Offline maxtog

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Re: Tire presser sensor - how it works
« Reply #16 on: May 17, 2013, 04:05:58 pm »
Did you try to solder the wires to the battery? If you do, don't get the battery too hot. Use something to scuff up the area of the battery where you'll solder the wire first.

Most solder won't stick to the steel casings of such stuff.   Factory uses spot welding.  If CAN be done, but requires the right solder and a VERY hot iron for a very short time (or it can serious damage the battery).

I would not recommend tape.  If it fails, it will be expensive to get the tire(s) off and back on and balanced yet again...
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Offline C1xRider

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Re: Tire presser sensor - how it works
« Reply #17 on: May 18, 2013, 12:13:02 am »
Awaz, instead of relying only on the tape, try using a zip tie or two, to secure the two halves of the case together.

You can solder to batteries with regular soldering irons or guns, but you need to scrape the shiny coating (non-technical term) off, usually down to the copper or tin underneath, and pre-tin the spot you want to solder the wire to.  However, as others have stated, over heating the battery is really bad, and could potentially cause it to rupture.  If you do this, do it quickly, and use lots of flux.
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Offline cablebandit

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Re: Tire presser sensor - how it works
« Reply #18 on: May 18, 2013, 06:28:59 am »
Words words words....

Just de-solder this battery:



Spend three bucks on the nearly drop-in replacement. And solder it in.


Offline Gsun

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Re: Tire presser sensor - how it works
« Reply #19 on: May 18, 2013, 09:04:13 pm »
I had my battery place solder the tabs on. I took in an old battery. Two cost 5 bucks. They were ready in two hours. I did put some tape around mine because when I installed Murphs 90 degree valve stems the sensors would not tighten up completely. No problems with the sensors. I think I put on two wraps.

Offline bigbaldy33

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Re: Tire presser sensor - how it works
« Reply #20 on: May 18, 2013, 11:08:26 pm »
Went to Batteries Plus.......they spot welded tabs on and soldered them in place.....cost 6 bucks and I gave the tech a '$10 tip for doing the WHOLE thing for me. Heat can destroy both the battery and the circuit board and the spot welder does the job well. Just take them in separate bags so you don't confuse the front and the rear sensors.

Big Baldy

Offline VirginiaJim

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Re: Tire presser sensor - how it works
« Reply #21 on: May 19, 2013, 12:24:02 pm »
I swear I did a search and did not come up with anything substantial. I just want an understanding how the tire pressure sensor internally works. Does it detect the amount of force being applied upon it? Basically how does it sense the pressure? The reason I am asking is I took the sensor out when I was changing my rear tire and wanted to change the battery. I got a new battery, but it is a PITA to solder a wire to the battery. So what I did is shown in the picture. It appears they fit fine, but wanted to put a rubber grommet on top and bottom to make sure enough pressure gets applied to the disc to make contact. If I do put rubber grommets, the encasing becomes tougher to shut. So was thinking perhaps I can press it in and just put tape around it (or secure it in some other means). But did not want that to cause issues with functionality.


I've put this together for your enjoyment....actually for anyone else interested in these sensors and their issues.

http://www.zggtr.org/index.php?topic=13831.0

Still working on it but am at least up to page 25 in rooting out the TPMS threads.  You're right in that it's damnably difficult to search these out as we all use different terms.  It ain't no better on the 'other' site either using search.
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Offline texrider

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Re: Tire presser sensor - how it works
« Reply #22 on: May 19, 2013, 03:56:02 pm »
I've had both sensor batteries in with a friction fit for some time, and they work like a champ. Solder and weld if you must, but they don't need it.

Now oil, on the other hand...  ;D
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Offline cablebandit

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Re: Tire presser sensor - how it works
« Reply #23 on: May 20, 2013, 06:48:36 am »
I've put this together for your enjoyment....actually for anyone else interested in these sensors and their issues.

http://www.zggtr.org/index.php?topic=13831.0

Still working on it but am at least up to page 25 in rooting out the TPMS threads.  You're right in that it's damnably difficult to search these out as we all use different terms.  It ain't no better on the 'other' site either using search.



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Offline stevewfl

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Re: Tire presser sensor - how it works
« Reply #24 on: May 20, 2013, 07:22:29 am »
Went to Batteries Plus.......they spot welded tabs on and soldered them in place.....cost 6 bucks and I gave the tech a '$10 tip for doing the WHOLE thing for me. Heat can destroy both the battery and the circuit board and the spot welder does the job well. Just take them in separate bags so you don't confuse the front and the rear sensors.

Big Baldy

d*mmit man I though it was over-simple to begin with, this really changes everything.  Thanks for the heads up  :D
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Offline gggGary

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Re: Tire presser sensor - how it works
« Reply #25 on: July 07, 2015, 06:27:27 am »
The list of threads is very useful. perhaps a few notes so the threads with detailed how to's (like this one) are "more obviouser"? 

Just a hint but on another MC forum several of the "old hands" post thread links to the best thread with answers about the issue at hand.  More useful than posting a quick but not complete, detailed, with pics answer.
« Last Edit: July 07, 2015, 06:16:07 pm by gggGary »
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