pianotuna wrote:
Hi,
The $19 dollar controller will work, but rather poorly. It doesn't have temperature compensation. It may never get the battery bank up to fully charged (which is already happening with the current dual purpose battery).
The Grape is a fully featured controller that will never need replacement and can be configured to fully charge the battery bank. It has the capacity to allow more panels to be added (for example as "wings" or as "awnings").
Hi Don,
You make a compelling case. I will plan to get the upgraded panel.
L