That's open circuit voltage, not short circuit current.
Yeah, in case you wire 4 of those panels in series you would need a 250/xx solar charger. And those are expensive to be used for a small 1280W PV array.
Do you already have those panels?
What is the battery voltage?You could wire strings of only 2 panels in series and then put those strings in parallel. But this would not be optimal for a 48V system (48V battery), because the PV array voltage would not be much above the battery voltage.
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