Quantity: This package comes a roll of pure nickel strip 99.6% pure nickel strip is the material you want, the nickel strip here will never corrode and come loose after welded to a 18650 cell, lithium ion batteries... 1*solid pure nickel strip, Premium Material: 99., 6% pure nickel strip is the material you want, the thick nickel strip here will never corrode and come loose after welded to a 18650 cell, lithium-ion batteries, and any other circuit systems. Pure Nickel Strip- 99.6% Nickel Strips 0.15x8mm 1kg(2.2lbs, 318ft) for Spot Welding Nickel Strip Roll Solid Pure Nickel Strip- 99.6% Nickel For 18650 Soldering Tab For High Capacity Lithium, Li-Po Battery Pack Building Nickel Strips Users can increase the current rating by increasing the series connections between each parallel group or by stacking more than one layer of pure nickel strips. 99.6% Pure Nickel Strip for Soldering Tab for High Capacity Lithium, Li-Po Battery, Battery Pack and Spot Welding, 18650 21700 26650 (Roll,100, 1 x 10 x 10M/32 Pure Nickel & Current: Choose the right standard of pure nickel strip for a specific battery pack based on the current that you would like to draw. Nickel is magnetic at or near room temperature.