RV & Marine Electrical | Tinned Lugs, Battery Cable, ABYC

Copper Battery Cable Lugs — 6221 Series

Professional-grade copper battery cable lugs for automotive, marine, solar, inverter, and industrial power connections. Our 6221 series battery lugs are manufactured from seamless 100% pure copper tubing with flared barrel ends for easy cable insertion. Available in both bare copper and tin-plated finishes.

Applications

Battery bank connections — Connect batteries in series or parallel for solar, RV, and marine systems
Inverter cables — Terminate battery-to-inverter power cables for solar and off-grid installations
Automotive & fleet — Replace corroded battery terminals and upgrade cable ends
Marine & boat wiring — ABYC-compliant battery connections for boats and yachts
Welding cable — Terminate flexible welding cable for power distribution
Solar PV systems — Battery bank jumpers, combiner box connections, charge controller termination
UPS & backup power — Data center and commercial UPS battery cable termination

6221 Series Features

Seamless copper barrel — no seams to split under vibration
Flared entry — guides cable into barrel for fast, clean insertion
Crimp or solder — works with hydraulic crimpers, hammer crimpers, or solder
Gauge stamped — AWG size stamped on barrel for instant identification
Stackable design — flat pad allows stacking multiple lugs on one stud
Flat $2.48 pricing — same price regardless of AWG size

Sizes Available

#8 AWG, #6 AWG, #4 AWG, #2 AWG, #1 AWG, 1/0 AWG, 2/0 AWG, 3/0 AWG, 4/0 AWG with stud holes from 1/4" to 1/2".

Why Contractors Choose Our Battery Lugs

At $2.48 per lug (flat pricing across all sizes), our 6221 series costs 60-75% less than equivalent battery lugs from Quick Cable, East Penn, or Grote. Same copper, same construction, same crimp performance — fraction of the price. Volume discounts available for orders of 100+ pieces.