EBROM Battery cable, very flexible, Hi-Flex, 16 mm² cable, sold by the metre, in red, very flexible, PVC jacket (70 ± 5 shore), 100% OFC copper, as jumper cable, charging cable, etc. :
Black Hi-Flex 50mm2 cable per meter
HI-FLEX Automotive 50mm2
Akkukaapeli Hi-Flex 50mm2 musta joustava metritavara - Adita verkkokauppa
70mm2 485 A Amps Flexible PVC Battery Welding Cable Black Red 1 - 100M M Lengths | eBay