I wanted to share a video from our very first customer to buy a SunPower 170W flexible solar panel from us. Rob was working on a pretty unique project for his recumbent e-trike. He added a trailer so that he could extend the time & distance he could spend on the road by charging the battery for his e-trike whilst underway (and store a bunch of camping gear too!)
The 170W was a great solution for this application, lightweight & flexible and as luck would have it the perfect dimensions for his trailer. The SunPower panels are also powerful - with the highest efficiency Gen III Maxeon solar cells (25%) it means he's making the most amount of power possible in the space available.
With a 48V battery bank to charge Rob had to go with a 'boost' MPPT controller to take the lower voltage from the panel (29.4V) to charge the higher voltage battery bank (48V). The solution was a model from Genasun GVB-8-WP-56.8v-Li, designed to charge a 48V nominal lithium-ion battery bank and the 'WP' stands for waterproof.