USB phone charger in boat.

[Laserman1]

I have a usb charger for my phone in my tracker. Previous owner installed it. It has a blue led light that stays on I guess to show power. If I can disable the light will the port still work and does it still draw power when not in use. Have to leave my boat at storage and don't want light to drain battery in between uses. Something is draining my battery and it's the only thing that stays in.

 

[MrJim43]

Install a simple battery disconnect switch at the main battery and your problem will stop.

 

[WTM]

yeah you can put a switch but youll probably have the same problem. a usb led only pulls max 50ma of current. it would take 3-6 months to deplete a battery. if you have lead acids and dont charge them for that long of a period they will self discharge anyway.

some mfd's have auto power on, like a garmin, turn it off if it does. the cpu pulls up 2a. some dum dums think that the livescope power led runs their battery down but its the mfd not the gls10.

 

[Urban_Hunter]

Install a simple battery disconnect switch at the main battery and your problem will stop.

I do this with all of my boats. Peace fo mind is invaluable

 

[DaveTN]

I do this with all of my boats. Peace fo mind is invaluable

^And RV's.^
I put one on my old RV. The new RV came with it.

 

[doubledownranch]

Look up a Perko Switch.

 

[Laserman1]

I do this with all of my boats. Peace fo mind is invaluable

Ok how do you install the switch. All I see have a single post like a car battery and my batteries also smaller post with wing nuts that I have 3 or 4 things plugged into them.

 

[MickThompson]

That itty bitty led isn't drawing enough to matter. I have the same setup in my rig and can't tell that it has pulled anything down

 

[7mm08]

Look up a Perko Switch.

Exactly what he needs…. I have the exact charger and a Perko. Turn off the Perko and everything cuts off except the auto bilge pump.

 

[DaveTN]

Ok how do you install the switch. All I see have a single post like a car battery and my batteries also smaller post with wing nuts that I have 3 or 4 things plugged into them.

 

[WTM]

yeah those wing nuts need to be replaced with hex locking nuts as well.

 

[Laserman1]

yeah those wing nuts need to be replaced with hex locking nuts as well.

I had hex nuts but replaced with wing nuts so I could pull batteries out during winter easier. Why not wing nuts?

 

[WTM]

I had hex nuts but replaced with wing nuts so I could pull batteries out during winter easier. Why not wing nuts?

theyve been known to cause fires and motor electrical problems by coming loose or being stripped out so the ABYC changed their rule to not allow them on conductors larger than 8awg.

 

[Laserman1]

Thanks. Bought a battery cutoff switch recommended on here and will change them back to nuts.

 

[ttf909]

One of these

 

[Laserman1]

Yes exactly that one. Works great.