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Yes, DELTA Max Extra Battery is compatible with both DELTA Max models, 1600 and 2000. Each supports up to two Extra Batteries.
Different power stations have various conditions that prompt the fan to start running of fan operation, for RIVER series, you can set that manually in the app, or set it to always be on. For DELTA (1300), the fan will turn on when the internal temperature is greater than 45°C.
So far, DELTA Pro/Smart Home Panel/Solar Tracker have a bluetooth module and can connect to the app via bluetooth. Other models without bluetooth can connect to the app via IOT or Direct Connection.
We do not have an official solution for wind turbine charging yet. However, a DIY solution is possible at your own risk. (As long as wind power meets our input XT60 port and AC inlet requirements of the power stations)
No, this is because the car charging and solar charging cables share the same input (XT60 outlet).