This charge controller can handle 440 Watts of solar if your battery is 12 Volts and 880 Watts if your battery is 24 Volts.
This charge controller can handle up to a maximum of 100 Volts from the panels even though the battery voltage is only 12 or 24 Volts. The panel voltage must be at least 5 volts above battery voltage.
No, this does not have Bluetooth.
It will if you program it for Lithium, but there is no way to program it without buying some additional equipment. You would be better off to purchase the Bluetooth version
This charge controller comes with a five year manufacturers warranty.