DIY Batteryless SmartTag

kopking10

500 RPM
Senior Member
Feb 7, 2005
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dont think its a good idea... the smartag was designed that way already, where samor you wanna mount it, then if you wanna remove it that time how to remove? permanen fixtures sure hard to remove wan, after all, it looks good already ma now =þ
agree..what if u're on long holiday and car is parked at home some scam broke in ur car and voillaaaa...smart tag for quick runwaway~ ;p

but nevertheless, it's diy, saluteee mate...really gd info tho
 

takumi86

Known Member
Senior Member
Dec 8, 2004
150
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Puchong
donCityZ bro,

good job! thumbs up!
for my case, my smart tag battery gone (low) after 2 days only.
seems like power leak..
DIY action: put switch to on and off.. save battery... hehee..
 

SlowCar

Active Member
Senior Member
Mar 23, 2004
44
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3,008
anyone DIY to place the smart tag in dash then put the IR on the dash?
no one will see your smart tag then...
 

har1th7

Known Member
Senior Member
Apr 1, 2008
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anyone DIY to place the smart tag in dash then put the IR on the dash?
no one will see your smart tag then...
like how the Japanese do ETC system... when buying JDM cars....

*I'll pay you for this*
 

zeus83

500 RPM
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Oct 29, 2006
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kudos bro! go patent you invention! :idea:
 

feipepe

Known Member
Senior Member
May 12, 2010
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balakong
I'm sure many people already done this.

But here is how I did it.

Prepare the parts :- a 9V IC regulator. ***7809, 2 pcs of 100uF/16V e.capacitors, and a heatsink and pcb.


Then solder all the parts together. The IC pin when seen from front side is Input-Ground-Output. Connect the E.cap at input to ground and output to ground respectively.


Buy the ciggarete jack (since im not smoking, better put it to good use) and open it up and rig a switch to turn it on and off.


Solder the input and output to the regulator. Need to cut the battery connector inside the battery compartment of the smarttag.


On the battery cover of smart tag, u will notice a small notch. Cut it
out for the wire to go out.


Finally cover it up nicely. Done!


And you will never need a battery ever again. Huhu...

Next DIY is to put a LED lighting to the SmartTag LCD screen.. hehe..
hi bro,
quick interested with this DIY matter, unluckly my lap top don't show any photo detail. wanna to know how to view it?:confused:
 

Dayline668

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Senior Member
Aug 4, 2007
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If u a heavy smart tag user can consider buying a rechargeable 9V, can use for long time.
 

Supra_Fanatics

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Sep 17, 2008
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Use a rechargeable battery is a good idea. Unless got somewhere to hide like stupidcar suggested. If your cover is transparent
better stupidcar. So that infrared can reach.
 

stupidcar

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Mar 18, 2013
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Use a rechargeable battery is a good idea. Unless got somewhere to hide like stupidcar suggested. If your cover is transparent
better stupidcar. So that infrared can reach.
I think if there is some solid blocking the infrared can't reach too.
If were to desolder everything, they say it will burn it(fragile chips),
and also the current will drop.
Basically, must use the whole damn board.
Damn tag, you are too big.
 

Supra_Fanatics

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Sep 17, 2008
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I think is a good idea but not recommended. Will fry the chips inside later.
Like they said in car chargers are not good for our phone. Eventually our phone battery lifespan ends faster.

Voltage in the car is not stable. Can be high or low at times.
 

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