This kit can be used to connect 2 batteries in series or parallel.
The kit includes:
(1) Red wire, 6AWG 200C Silicone insulated stranded copper wire with UL listed 3/8" terminals
(1) Black wire, 6AWG 200C Silicone insulated stranded copper wire with UL listed 3/8" terminals
Use one kit in parallel for up to 2000W / 12V
Use two kits in parallel for up to 5000W / 12V
Use four kits in parallel for up to 10,000W / 12V