I have the below LED and a rechargeable battery with the specifications below. To make an emergency LED light myself, I guess I don't need a resistor connected in series since battery voltage (3.7V) is almost equal to operating voltage of LED (3.2 V to 3.6 V). Please confirm.
Also, I believe the LED will automatically draw the current it needs to lit since the battery capacity is 2600 mAh and the LED operates with a minimum current of 350 mA. Or do I need to add any component to limit the current drawn from the battery?
LED Power: 1 W - 3 W Model Name: CREE XPE-R3 Emitted Color: Cool White (6500k) Brightness: 1 W: 122LM 3 W: 320LM DC Forward Voltage (VF): 3.2 V-3.6 VDC DC Forward Current (IF): 350 mA ~ 1000 mA Maximum Pulse Voltage: 3.8 V Maximum Pulse Current: 1200 mA Ultrafire 18650 Battery - Capacity: 3600 mAh (actual 2600 mAh) - Voltage: 3.7 V