The NOCO BUS8 Lithium Battery Interconnect Busbar is a must-have accessory for maximizing the potential of your NOCO NLX Lithium Batteries. With this interconnect busbar, you can effortlessly connect multiple batteries, allowing for series and parallel battery configurations. Designed exclusively for use with NOCO NLX Lithium Battery models, including NLX24, NLX27, and NLX31