Re: Solar Boost 2000E input voltage
Your 270 watts of panel will be lucky if they produce ~5-600 wh/day,, even if you keep them optimally aim,, tough to do on a boat.
My rule of thumb,, is to take the name plate rating of the array,, (270) divide it by 1/2 to take into account ALL system losses,, (Panel ef, charge controller ef, basic battery charging ef, wiring losses, inverter efficiency etc>) that would make 135,, multiply this number by the expected hours of GOOD sun,, normally ~4 = 540 wh. If you go into this using 1-1.5 kwh/day, you will go into deficit right away. That coupled with non-deep cycle batteries,, and I would predict that you will have expensive lead ballast quite quickly.
PS, I that there is some quibble with my 50% number,, some think it too high,, some think it too low. The point is,, for a quick calc,, it is close enough to realize that in cases such as yours,, you are going to be in deficit regardless of if my number should be 55% or only 45%.
Please note, being a moderator does not add any weight to my opinions 300 watts Siemens/BP panels,plus a Sun 90,, making ~400. ~30 amps into Rogue MPT-3024, 450 ah of Trojan T-105, Morningstar ts300 inverter, a Tri-Metric meter.a collection of antique generators, plus 2 Honda eu-1000i's (also a BS2512 IX controller) and assorted other stuff!