Single and Dual Leaf Spring Battery Contact (Pack of 10) .250 (6.4 mm) Width each Leaf Spring. 1.016 (25.8 mm) Total Width (Dual). Made to fit 18650 Battery Holders. Designed for Cylindrical Battery. Cell Size 18650 or Equivalent Size.640 (16.30 mm) Total Length. byJuly 5, 2026