Abstract: A battery pack includes an outer housing having an open top, an outer housing lid applicable to the open top to define a closed outer hold within the outer housing, and a power port carried on the outer housing. The battery pack includes an inner housing within the outer hold of the outer housing, which inner housing includes a basin and an inner housing lid applicable to the basin to define a closed inner hold within the inner housing. A plurality of battery cells are disposed entirely within the inner hold, wherein the battery cells are electrically coupled to the power port to provide power to the power port.

Abstract: A standby solution for extended run time power systems for a load at a telecom site with backup power includes an interface distribution module including a battery bus, a lithium battery electrically connected to the battery bus, a charging rectifier electrically connected to the interface distribution module. The standby solution has a line mode, wherein the charging rectifier maintains a constant maximum voltage level of the lithium battery, a discharge mode, wherein the interface distribution module engages a discharge bias to enable discharge of the lithium battery to the load, and a charge mode, wherein the interface distribution module disengages the discharge bias to disable discharge of the lithium battery.

Abstract: A battery pack including a rectangular prismatic outer housing including a front and a back, opposed sides, a bottom and an open top, and a lid applied to the open top to define a closed outer hold within the outer housing. The battery pack further includes a power switch, a power port, an input/output, and a display all carried in the front of the outer housing. An inner housing is within the outer hold of the outer housing and includes a basin and a lid applied to the basin to define a closed inner hold within the inner housing. A plurality of battery cells are disposed entirely within the inner hold, and the battery cells are electrically coupled to the power port to provide power to the power port.