Pre-cut copper-nickel battery busbar designed for building 21700 lithium-ion battery packs. The 2P configuration allows two cells to be connected in parallel, providing a convenient alternative to individually cutting and preparing nickel strip. Ideal for DIY battery builds, repairs and custom battery pack assembly. Features: Designed for 21700 cells 2P configuration 800mm finished length Copper-nickel construction Designed for spot welding Easy to cut to the required length Supplied as 1 × 800mm busbar