2016 300rr gauge battery solved for good

[Vossman59]

So I have burned through many 3v battery's for my gauge. The last few that I swapped out only lasted one ride. The gauge is built by trail tech and on my other bike I have a trail tech gauge that connects directly to my bikes battery. However the gauge on my beta can only run off of the 3v watch battery. I wanted to connect the beta gauge to the battery however it would have to be 3v so I would have to step down the voltage from 12v. There is a cheap step down converter called a buck converter you can buy on Amazon $10 for a pack of 5. I soldered wires from the buck con. And connected them to the battery. The buck converter has a petentiomiter to adjust the output voltage. I adjusted the voltage with a screwdriver and voltmeter till the meter read 3v. I then covered the buck converter in hot glue to water proof the circuit board and then velcrowed the buck con to the battery. I then ran the wire coming from the output of the buck con along with the factory wires to the front of the bike. I removed the watch battery from the gauge and soldered leads to the battery contacts. Negative to the contact in the center and positive to the contact on the side. I drilled a hole in the battery cover and ran the wire out of the gauge through the hole. I used some cheap connectors to attach the wires from the battery and the wires from the gauge together and it works. The gauge now runs off of the bikes 12v battery I never have to replace a watch battery again. I will add some pictures when I figure out how

[spokexx]

Solves complex technical electrical issue. Still cant add pictures to the internet

j/k

Sounds great, thanks for the advice.

[Vossman59]

This is the buck converter. Soldered input wires to left contact and output to the right contacts. The voltage adjuster is the bottom right circle.

[Vossman59]

Here the buck converter is connected to the battery covered in hot glue to water proof and velcrowed to the battery

[Vossman59]

Ran the output wire along the frame rail

[Vossman59]

Drilled a hole in the battery cover and soldered the wires to the battery contacts. Now the gauge has a constant 3v source. You can see the wire disconnectjust above the gauge

[chrisinflight]

Interesting and it solved your issue. I've wired a 12v feed to the indicator/flasher connector which somehow powers the computer circuit. Is there a reason you couldn't power the unit with 12v through the connector?
You won't have any back up power if your battery goes flat or is disconnected.

[Vossman59]

I was going to hook it up to a 12v source behind the head light but honestly didn't take the time to find one. I removed the watch battery because I don't want to rely on it at all, so it has to be hooked up to a constant 12v to maintain the memory. If the main battery goes dead I just won't have the gauge for one ride because I've become lazy and dont want to kick start my bike

[bryanaverill]

I came to a similar conclusion but just sent 12 volts to the meter through the circuit that chrisinflight did. The gauge has its own voltage regulator. The reason the flasher circuit works is because it's electrically connected to the red wire on the gauges two pin connector.

I also added a switch to the 12 volt feed line but I always leave it in the ON position. It takes about three months of non-operation to drain the main 12 volt battery to 50% (loose approximation).

I still have a 3 volt battery installed.

[chrisinflight]

I think the credit goes to you Bryan.. I read a previous thread on here!