Solar panel input bot showing on car display

[olwe]

Hi,
I've just had solar panels installed to victron mppt, which was connected to the rear battery in ocean t6.1.
Victron app shows from 4 to 10 ampers as an input to the battery, but car display shows negative 1 Amp with nothing extra that could consume the energy. Is your solar installation input visible on the car battery display?

 

[Arnoob]

The only way I can see my solar panel working is that on the display is larger than 21.8, most probably something like 13.7. Trust your Victron app. The negative 1 amp should not worry you, it comes and goes, for example the use of the lights on the display.

 

[WelshGas]

Hi,
I've just had solar panels installed to victron mppt, which was connected to the rear battery in ocean t6.1.
Victron app shows from 4 to 10 ampers as an input to the battery, but car display shows negative 1 Amp with nothing extra that could consume the energy. Is your solar installation input visible on the car battery display?

1. On the T6.1 the Solar -tve MUST be wired to a chassis Earth. The rear leisure battery bolt can be used.

2. If the 75 or 100 amp cube fuse on the rear leisure battery has blown and the Solar +tve lead is connected below the cube fuse the you are charging rear battery but using/monitoring front leisure battery.

 

[dspuk]

Hi,
I've just had solar panels installed to victron mppt, which was connected to the rear battery in ocean t6.1.
Victron app shows from 4 to 10 ampers as an input to the battery, but car display shows negative 1 Amp with nothing extra that could consume the energy. Is your solar installation input visible on the car battery display?

Yes and no. You can see the effect of power going in as + amps. Given todays sun, good luck on that.

The -1 is the power being drawn to display the screen.

Sounds like you have not quite got the connections right to show the input. As WG says - check your earths and make sure you are connected to the right terminals.

 

[olwe]

Thank you, gentlemen. I've connected the -tve behind the flow monitor, and car is now displaying amperes from the MPPT.

 

[Blanco]

1. On the T6.1 the Solar -tve MUST be wired to a chassis Earth. The rear leisure battery bolt can be used.

2. If the 75 or 100 amp cube fuse on the rear leisure battery has blown and the Solar +tve lead is connected below the cube fuse the you are charging rear battery but using/monitoring front leisure battery.

Is this also true for a T6. I ask because after fitting solar with a Victron MPPT 75/15 and negative -VE lead from the Controller connected to the rear battery clamp bolt, every time the sun came out I was getting a 7001 error on the control panel. The error stopped after moving the lead onto the battery negative terminal. Voltages on the Victron app and control panel match and both 75/80A fuses are good.

 

[WelshGas]

Is this also true for a T6. I ask because after fitting solar with a Victron MPPT 75/15 and negative -VE lead from the Controller connected to the rear battery clamp bolt, every time the sun came out I was getting a 7001 error on the control panel. The error stopped after moving the lead onto the battery negative terminal. Voltages on the Victron app and control panel match and both 75/80A fuses are good.

On the T5/6 you can connect to the -tve pole, or the battery clamp.
You probably had a poor connection on the battery clamp hence the error.

 

[Blanco]

2 new LA80's, continuity to ground on both negatives 0.00. Only switched -VE from ground to terminal after testing every connection in the chain and finding nothing amiss, the only one that didn't match Victron's instructions was -VE, which they say should be to the battery. With little to loose, I just tried it. Problem solved - fingers crossed. Suspect having two connections to ground made a ground loop hence the error. Difficult to know without knowing how the control panel decides there's been an interruption. BTW, your post in 2019 abt how to clear errors on the control panel was a godsend.