MPTT solar regulator wiring on California T7

[Mashirito]

Hi everyone!!

I'm planning to install a solar panel on my T7 Beach Tour (with the factory Lifepo battery) and I’d love to hear from others who have already done it.

Have you connected the MPPT controller after the shunt of the leisure battery?

From what I understand, if the MPPT is connected directly to the battery terminals (bypassing the shunt), the system might not register the incoming solar charge – which could lead to inaccurate battery percentage readings on the camper’s screen.

On the other hand, wiring the MPPT after the shunt (so the charge current is measured) seems more complex but would ensure proper tracking of solar input and battery state of charge.

Has anyone done it the "correct" way? Any tips on where to tap into the system to ensure the onboard screen sees the solar charge?

Thanks in advance!

 

[WelshGas]

Hi everyone!!

I'm planning to install a solar panel on my T7 Beach Tour (with the factory Lifepo battery) and I’d love to hear from others who have already done it.

Have you connected the MPPT controller after the shunt of the leisure battery?

From what I understand, if the MPPT is connected directly to the battery terminals (bypassing the shunt), the system might not register the incoming solar charge – which could lead to inaccurate battery percentage readings on the camper’s screen.

On the other hand, wiring the MPPT after the shunt (so the charge current is measured) seems more complex but would ensure proper tracking of solar input and battery state of charge.

Has anyone done it the "correct" way? Any tips on where to tap into the system to ensure the onboard screen sees the solar charge?

Thanks in advance!

Wire solar power +tve to battery +tve BUT solar power -tve to a chassis earth point.

 

[Razor Crest]

With all the current issues with batteries and software, wouldn’t it be better to hold off until it’s sorted?