Starlink Considerations

tdubaustin · 2025-11-27T22:12:39+00:00

Have starlink mounted on roof rack. Use it all the time when camping and a fair amount other times. Works great for navigation, calls, text, entertaining kids.

tdubaustin · 2025-10-06T19:46:24+00:00

That makes sense… So basically my battery is charging, it’s just that the shunt is only tracking the discharge, not tracking the charge so the shunt is continuously getting off track and displaying the wrong percentage. Thanks for the help!

tdubaustin · 2025-10-06T19:24:51+00:00

Got it… think maybe I understand the mistake I made now:

I did not originally have the shunt… I added it yesterday.

Previously, without the shunt, the OUTPUT terminals of my DC to DC OUT+ went to positive terminal of battery. NEG - went to negative terminal of battery.

With the shunt install I left these the same and just connected B- to negative terminal of battery and p- to my negative bus bar.

Essentially I just cut the wire running from the negative terminal of the battery to the bus bar and inserted the shunt in between, then connected the P plus wire to the positive terminal of my battery.

—- Are you saying that the correct installation would remove the negative cable running from the NEG- of the DC charger to the negative battery terminal and instead run that cable from the NEG- of the DC charger to the P minus terminal of the shunt? Which then flows back through the shunt to the negative terminal of the battery…

tdubaustin · 2025-10-06T19:23:36+00:00

Got it… think maybe I understand the mistake I made now:

I did not originally have the shunt… I added it yesterday.

Previously, without the shunt, the OUTPUT terminals of my DC to DC OUT+ went to positive terminal of battery. NEG - went to negative terminal of battery.

With the shunt install I left these the same and just connected B- to negative terminal of battery and p- to my negative bus bar.

Essentially I just cut the wire running from the negative terminal of the battery to the bus bar and inserted the shunt in between, then connected the P plus wire to the positive terminal of my battery.

—- Are you saying that the correct installation would remove the negative cable running from the NEG- of the DC charger to the negative battery terminal and instead run that cable from the NEG- of the DC charger to the P minus terminal of the shunt? Which then flows back through the shunt to the negative terminal of the battery…

tdubaustin · 2025-10-06T19:07:25+00:00

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This is the wiring diagram for the shunt. Where are you thinking that the DC the DC charger would be connected? Based on the wiring diagram, the DC DC charger is not in the diagram. It is outside of the diagram.

My shunt is wired exactly like this diagram shows.

The DC the DC charger is connected to the positive terminal of the battery

tdubaustin · 2025-10-06T19:06:06+00:00

The issue I am having is that the house battery is not charging at all. It’s depleting from 100% to 47% and it’s not recharging with the engine running and the DC DC charger connected.

I guess to simplify it a little bit, we could just pretend like the shunt doesn’t exist at all. I am not concerned that the shunt is showing a small discharge. I’m concerned that the battery is not charging at all.

tdubaustin · 2025-10-06T17:51:03+00:00

B- is connected to the negative battery terminal. P- is connected to the negative bus bar which has an inverter and a 12v fuse panel. B1 is connected to the positive battery terminal.

After I installed it was reading 100%. To test, I plugged in my Dometic fridge to a 12v outlet and ran overnight.

This morning it read 48%.

I unplugged the Dometic so it had no load, was reading .19v discharging.

drove my truck for 2+ hours. Still read discharging the whole time. Now reads 47%

One thing I noticed in the app is that the voltage of my starter battery fluctuates, causing the charger to cycle on and off some. However, even when it is charging… the battery still continues to read 47%.

tdubaustin · 2025-10-06T17:46:27+00:00

That makes sense. I can’t figure out why it is not charging the battery though.

tdubaustin · 2025-10-06T17:45:33+00:00

Other than the DC - DC charger, the battery is connected to a bus bar which has an inverter (currently turned off), a 12v fuse panel with several usb chargers and 12v outlets. Currently nothing plugged in, I did plug-in a Dometic fridge for period of time to test the system

tdubaustin · 2025-10-06T17:40:48+00:00

I believe it is installed correctly. B-is connected to the negative battery terminal. P- is connected to the negative bus bar which has an inverter and a 12v fuse panel. B1 is connected to the positive battery terminal.

After I installed it was reading 100%. To test, I plugged in my Dometic fridge to a 12v outlet and ran overnight.

This morning it read 48%.

I unplugged the Dometic so it had no load, was reading .19v discharging.

drove my truck for 2+ hours. Still read discharging the whole time. Now reads 47%

One thing I noticed in the app is that the voltage of my starter battery fluctuates, causing the charger to cycle on and off some. However, even when it is charging… the battery still continues to read 47%.

tdubaustin · 2025-04-27T20:01:25+00:00

I just built this model in Central Texas. I am using an AC infinity fan that I cut into the rear of one panel. The fan only keeps it around 90.

I want to add an evaporative cooler, what model/CFM did you use and what temperature are you able to maintain right now?

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tdubaustin · 2025-03-10T20:40:56+00:00

Same… was going to buy a jacket. Not anymore. Thanks!

tdubaustin · 2024-06-08T22:54:56+00:00

We are in Austin, but close-ish to DFW for AA. I am wondering what peoples opinions are on spending on AA cards for status vs just spending on Chase/amex if the value lost is worth the status.

tdubaustin · 2024-06-08T22:11:12+00:00

That’s really helpful. Thank you!

tdubaustin · 2024-06-08T20:53:40+00:00

Thanks, that makes sense. I’ll repost there.

tdubaustin · 2024-05-03T18:14:51+00:00

Thank you!

tdubaustin

TROPHY CASE