Hey
@TDK, also I'm thinking to get multiple 110 watts panels rather then the 200 Watts,....what do you think ?
Thanks again
Its mostly about what form-factor/packaging works for you. The square inches surface area per Watt is going to be equivalent. A 200W panel is like two 100W panels hooked together internally (sometimes in series, sometimes in parallel). So more panels and more connections with 100W panels, but each panel is smaller. Fewer panels and fewer connections with 200W, but each panel is larger. In my case I wanted a 400W total that was portable, and it is more convenient for me to deal with two larger panels than 4 smaller ones.
For the Jackery 2000, each of the two DC input port has the following limitations:
at 11-17.5V, max current is 8A
at 17.5-60V, max current is 12A
Here's where the series/parallel wiring comes into play. If you hook too many panels in parallel you could exceed the current limit of a single port. If you hook too many in series you could exceed the voltage limit.
For example, here are the specs for my HQST 190W panel: Operating voltage = 20.3V, Operating Current = 9.36A (my panel is like two 100W wired in PARALLEL, more current same voltage)
I can hook two of my panels in series for 40.6V, but if I added another it would be 60.9V which would exceed the voltage of a single input.
If I hooked two panels in parallel, that would give 18.7A which would exceed the current rating of a single input.
So my options are to run the two panels in parallel on one input, or split them and run one to each port. That's one more thing with the jackery. If you use both input ports, you have to maintain symmetry. The manual explains this.
Generally, if you are running longer cables you want to configure for higher voltage since it will result in less loss. If your solar panels are going to be pretty close and the cables shorter it doesn't matter as much.
At the end of the day as long as you are meeting the specs of the Jackery inputs (voltage, current, symmetry between ports) its going to work, so there's a lot of '
6 one way, half a dozen the other' in how you can hook panels up.