An electrical connector for electrical connection to each of a plurality of portable electrical energy storage cells making up a portable electrical energy storage device, the electrical connector comprising: a. an electrically conductive frame; b. a plurality of integral electrically conductive tabs (102A-102H), each of the plurality of integral electrically conductive tabs in electrical communication with the electrically conductive frame; and c. a plurality of integral electrically conductive supports (106A-106H), an integral electrically conductive support of the plurality of integral electrically conductive supports extending between one of the plurality of integral electrically conductive tabs (102A-102H) and the electrically conductive frame, the integral electrically conductive support(106A-106H) extending between one of the plurality of integral electrically conductive tabs (102A-102H) and the electrically conductive frame including at least one electrically conductive band (116, 118), the at least one electrically conductive band (116, 118) having a cross-sectional area less than a cross-sectional area of another portion of the integral electrically conductive support (106A-106H) extending from one of the integral electrically conductive tabs (102A-102H), wherein the one of the plurality of integral electrically conductive tabs (102A-102H) lies in a plane that is under a plane in which the electrically conductive frame lies, wherein the integral electrically conductive support (106A-106H) extends from the plane, in which the electrically conductive frame lies, downward to the plane, in which the one of the plurality of integral electrically conductive tabs (102A-102H), lies, wherein the integral electrically conductive support (106A-106H) includes an upper surface and a lower surface and an opening passing through the integral electrically conductive support (106A-106H) from the upper surface to the lower surface, wherein the integral electrically conductive support (106A-106H) includes a first edge and a second edge with a first electrically conductive band between the first edge and the opening and a second electrically conductive band between the second edge and the opening, each of the first and the second electrically conductive bands (116, 118) having a cross-sectional area less than a cross-sectional area of the other portion of the integral electrically conductive support (106A-106H) extending from one of the integral electrically conductive tabs (102A-102H) such that the electrically conductive bands are configured to electrically isolate a portable electrical energy cell from other portable electrical energy storage cells attached to the same electrical connector when electric currents flowing through the first and the second electrically conductive bands exceed a threshold level. a. an electrically conductive frame; b. a plurality of integral electrically conductive tabs (102A-102H), each of the plurality of integral electrically conductive tabs in electrical communication with the electrically conductive frame; and c. a plurality of integral electrically conductive supports (106A-106H), an integral electrically conductive support of the plurality of integral electrically conductive supports extending between one of the plurality of integral electrically conductive tabs (102A-102H) and the electrically conductive frame, the integral electrically conductive support(106A-106H) extending between one of the plurality of integral electrically conductive tabs (102A-102H) and the electrically conductive frame including at least one electrically conductive band (116, 118), the at least one electrically conductive band (116, 118) having a cross-sectional area less than a cross-sectional area of another portion of the integral electrically conductive support (106A-106H) extending from one of the integral electrically conductive tabs (102A-102H), wherein the one of the plurality of integral electrically conductive tabs (102A-102H) lies in a plane that is under a plane in which the electrically conductive frame lies, wherein the integral electrically conductive support (106A-106H) extends from the plane, in which the electrically conductive frame lies, downward to the plane, in which the one of the plurality of integral electrically conductive tabs (102A-102H), lies, wherein the integral electrically conductive support (106A-106H) includes an upper surface and a lower surface and an opening passing through the integral electrically conductive support (106A-106H) from the upper surface to the lower surface, wherein the integral electrically conductive support (106A-106H) includes a first edge and a second edge with a first electrically conductive band between the first edge and the opening and a second electrically conductive band between the second edge and the opening, each of the first and the second electrically conductive bands (116, 118) having a cross-sectional area less than a cross-sectional area of the other portion of the integral electrically conductive support (106A-106H) extending from one of the integral electrically conductive tabs (102A-102H) such that the electrically conductive bands are configured to electrically isolate a portable electrical energy cell from other portable electrical energy storage cells attached to the same electrical connector when electric currents flowing through the first and the second electrically conductive bands exceed a threshold level.