Used 3V HSF Lithium Battery Cell (tested 210-220ah) Voltage: 3.2V Capacity: cycle tested between 210-220ah Chemistry: LiFePO4 Weight: 6.12kg Dimensions: 192(L) x 72(W) x 305(H)mm Appearance: White – PVC hard shell The compatible battery link (it is the same link for both side-to-side and end-to-end configurations): Medium current applications (2mm thick) – https://alt-tech.com.au/themedev/product/bln-battery-link-new-08-20x2x070/ High current applications (3mm thick) – https://alt-tech.com.au/themedev/product/bln-battery-link-new-08-20x3x070/