Trike test elejoy MPPT controller

In September, I posted about my collection of MPPT boost controllers:

• MPPT controller for custom trike — September 13, 2024

And further details on the Lensun controller:

• Lensun MPPT has to be isolated from frame — October 11, 2024

Decided to test the elejoy, but left the Lensun in-place, so as to be able to  swap them over in just a couple of minutes:

Took the trike outside this morning, December 10, 9.50am, clear blue sky:

As mentioned, had discharged the battery a little bit, hoping to improve the behaviour of the BMS. The elejoy output is reading:

54.3V, 2.35A

Which is 127.6W

Hmmm, not as good as expected. Based upon the surface-area of the panel and inclination of sun, and past experience, I expect higher then that. Need to setup a variable resistive load for the solar panel and find its peak power point; determine what it is actually capable of. Hopefully will do that in the next couple of days.

Today, got distracted  when a neighbour came over and we chatted about the trike, lithium batteries, etc. Then I had other stuff wanted to do today.   

Tags: light