Grand Design Reflection 303RLS RV Solar Install

We used the front storage bay which often gets used for a generator. Not so for this customer, we installed 5 Battle Born lithium batteries, a Victron Multiplus 3000 , Lynx Disributor, Cerbo GX and battery monitor. We even retained use of the factory Furrion battery monitor as well, otherwise they would have been a dead gauge inside.

We removed the single 300w Jaboni Solar panel and MPPT charger and replaced it with 6x 200w Rich Solar panels for 1200w total. As you can see there is room for more. With our setup we ran these in a 3s2p configuration, the customer could over panel in the future for a 3s3p configuration for 1800w total. Not bad for still using the solar prewire.

The key to pushing all that power through solar prewire is getting the voltage up . With the 3s configuration we get to 135VOC (solar panel voltage) if we divide 1200w by the PVmax voltage of around 120v we get 10 amps of current. The 10awg wire is rated for 30 amps max, so we have some room to go yet still.