im interested does someone tried connect 2 powerful solar panels in parallel, like 47 volts 15 amps each. is it safe to parallel those kind of panels together?
Assuming your solar panel has a coefficient of −0.30% / °C this means that the voltage will increase by a factor of (47 X 0.003) OR +0.141 V per °C below optimal which is 25C. So at freezing, you are only at 54V (47X0.141=~54) still plenty of headroom left. It would be need to below -67C before you would exceed 60V. You only run into issues when combining panels in series, but the Elite 100 + 200 was designed to take advantage of amperage not voltage. With that said your MPPT will only accept 20A and reject the rest. The extra 10A of current is not TOO HIGH to be damaging to the unit, but extra voltage IS. So you’ll end up with 47X20 or about 940W
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i was afraid of high current damaging panels, cant find what limits they have like for the volts most of them have limit of 1500 volts in whole system
When you run two panels in parallel, the voltage will be 47 but the current will be 30A, meaning you need to make sure the wire run going from the panels TO the Bluetti can handle it. The Bluetti will reject 10 of the 30 amps, but you still need to make sure the cables can handle 30A. For example if the default panels come with 12AWG wiring (4mm^2) it can ONLY pull 20-25A safely without overheating and burning out.