30Q Battery by Samsung
The Samsung 30Q 18650 battery has a 15A-20A rating.
*Price is for 1 battery.
This is not a high performance power cell, designed for high current. It is a high capacity energy cell designed for low to moderate power levels and long running time. At higher current levels the voltage sag and power loss in the cell are huge. Do not exceed 20A.
I am giving this cell a continuous current rating of 15A (about 45W using 3.7V) and a temperature-limited rating of 20A (about 60W if using 3.7V) as long as the cell is never allowed to reach 75°C.