PLEASE READ THE DESCRIPTION CAREFULLY. Shipping to USA only. No shipping to PO Boxes. No international shipping. Non-USA customers click here. Brand new high-discharge 12v 4S 600A busbar PCBs! These beefy busbars PCBs are perfect for turning x4 in series LEV60F lithium-iron-phosphate (LiFePO4) cells into a compact and powerful 12v 74Ah 600A battery for use in high discharge applications, such as 12v car audio and other high performance uses. This listing is for the PCB busbars only. The beefy PCB busbar includes terminal soldering pads in case you want to solder on your own bare wire 2AWG terminal blocks. LEV60F cells sold separately HERE. These cells need compression, the compression kit is available HERE. Hardware not included. Final 4S pack dimensions:  8.75" L x 6.75" W x 5.75" H.LEV60 Terminal torque: 9Nm +/- 3 / 6.64ft-lb. Five PCB spacers (3x of the 54mm, x2 round singles) are required to prevent shorts, included in this kit! Plz see the diagram and video below for more details: Other components you'll need: Fish Paper for isolation between cells available > HERE Compression kit sold separately > HERE 5-pin jumper cable sold separately > HERE 0G Terminal Blocks     PRODUCT VIDEO: __ These items are sold for DIY and Second Life purposes. Even when sold as “new”, “NOS”, "unused" or “like-new”, they may be in less than perfect condition. If you buy a product from us and then realize you don't have, or don't want to acquire, the tool(s) or information needed to make our product(s) work for your specific build, this does not constitute valid grounds for replacements, exchanges or refunds. You are responsible for doing your due diligence before making any purchases from us.