Custom Battery Cables, Built to Your Length

The cable that came with the machine is green at the terminal. Or it is eight inches too short for where the second battery is going. Or it cooked itself the last time somebody cranked a cold engine through a bad ground. The part is not made anymore, and the universal cable off the pegboard does not reach.

Bring the old cable to the counter. We will build one that matches it: same gauge, same length, same terminal ends, or heavier and longer if that is what the job actually calls for. Most single cables get built while you wait.

What we build

Any battery cable, any length, terminated on both ends. There is no catalog to pick from, because we cut and crimp each one at the counter for the job in front of us.

  • Starting cables for cars, trucks, tractors, motorcycles, ATVs, and equipment where the original is corroded or discontinued
  • Ground cables and ground straps, including the heavy grounds a car audio system needs to stop dimming the headlights
  • Dual-battery and second-battery hookups for work trucks, campers, and boats
  • Inverter and accessory leads running from the battery to the load
  • Equipment and forklift leads with SB50 or Anderson connectors on the end
  • Golf cart and powersports jumpers between batteries in a series pack

If you can measure it and tell us what goes on each end, we can build it. We have a hard time coming up with a cable job we’ve turned down.

The cable we run

We stock welding cable and battery cable in red and black, from 14 gauge all the way up to 4/0. That covers 10, 8, 6, 4, and 2 gauge battery cable, plus 1/0 and 2/0 for the heavy stuff. It is on the spool, so you are not waiting on an order.

Welding cable is the one we reach for most, and the reason is stranding. It is built from far more, far finer copper strands than standard battery cable, so it bends into tight engine bays and around frame rails without fighting you or kinking at the terminal. On a machine that vibrates all day, that flexibility is what keeps the copper from work-hardening and breaking off behind the lug.

Standard battery cable has a thicker jacket and stiffer stranding, which is fine on a straight run that gets clamped down and left alone.

Picking a gauge

Two things drive the size: how much current the cable has to carry, and how far it has to carry it. Length matters more than people expect, because voltage drop climbs with every foot. A 4-foot run and a 14-foot run to the same starter are not the same cable.

  • 14 to 10 gauge. Accessory circuits, lighting, charger and tender leads, small powersports wiring.
  • 8 and 6 gauge. Motorcycle, ATV, and UTV starting cables, short ground straps, winch and accessory runs.
  • 4 and 2 gauge. Most car and light truck starting and ground cables, car audio power runs, lawn and garden equipment.
  • 1/0 and 2/0. Diesel starting, long runs, dual-battery hookups, inverters, golf cart and equipment packs.
  • 4/0. Heavy equipment, forklift leads, large industrial runs, and long high-amp cables where voltage drop is the concern.

When you are between two sizes, go up. Copper costs a little more. A cable that runs hot and drops voltage costs you a starter.

Deka East Penn 00369 Heavy-Duty Top Post Battery Terminal - Bulldog Battery, Inc.

Terminal ends and connectors

The cable is half the job. The end that bolts to your equipment is the half that usually fails. We keep these on the shelf and crimp them in-house:

  • Copper lugs, straight and offset
  • Ring terminals in the common stud sizes
  • Top-post battery clamps
  • SB50 and Anderson connectors
  • Quick disconnects
  • Marine wing nut terminals

Every finished end gets a heat-shrink boot over the barrel. That is what keeps water and road salt out of the crimp, which is where corrosion starts and where it does the most damage before anybody notices.

We do not do wire loom or printed labeling. If your shop needs cables tagged for a build sheet, plan on marking them yourself.

How the cable gets made

  1. We measure against what you brought in. An old cable laid on the counter beats a number from memory every time. If you do not have the old one, give us the run and we will work from that.
  2. We cut to length and strip the jacket to the depth the lug barrel actually needs, not a guess.
  3. We crimp it on our own tooling, so the barrel closes evenly around the full bundle instead of pinching one side.
  4. We solder the joint. The crimp is the mechanical hold. Solder fills the voids between strands so the connection cannot work loose under vibration and cannot wick moisture up inside the copper.
  5. We shrink the boot over the barrel and seal it to the jacket.
  6. We check it before it leaves. Right gauge, right length, right ends, right polarity.

Crimp-only is faster and it is what most shops do. Solder-only cracks at the strand transition when the cable flexes. Doing both is slower, and it is why the cables hold up.

One cable or a production run

There is no minimum. One cable is a perfectly normal order, and it is most of what walks through the door. There is no maximum length and no gauge we will not crimp.

We also build repeat runs for shops, fabricators, and equipment builders who need the same assembly over and over. Lead time and availability on a production order depend on the gauge and the connectors, so call us with the quantity and we will give you a real answer instead of a guess.

What we will not build

We do not stock tinned or marine-grade cable. Boats that live in the water want tinned conductors, because bare copper wicks moisture up the strands and turns green from the inside where you cannot see it.

We will happily build a cable with marine wing nut ends for a trailered boat. If you are wiring something that stays in a slip all season, we would rather tell you that up front than sell you a cable that looks fine and quietly corrodes. Come see us for the marine and RV batteries and get the tinned wire from a marine supplier.

Bulldog Battery 2 AWG Red Battery Cable - 20 Inch Top Post

Built at the counter in Willoughby

Every cable is cut, crimped, and soldered here at our Willoughby shop, where we have been at the same address for 35 years.

People drive in from Wickliffe, Euclid, and Mayfield Heights with a corroded starter cable in a shopping bag, from Mentor with a boat trailer behind them, and from Chesterland and Chardon with something off a tractor that has not had a part number since the nineties.

Custom cables are counter work and pickup only. We do not ship them.

Common questions

How do I get a custom battery cable made?

Bring the old cable in and we will match it. If you do not have it, bring us three numbers: the length of the run, the gauge you need, and what goes on each end. If you are not sure on the gauge, tell us what it is powering and how far it has to go and we will size it with you.

How long does it take?

A single cable is usually built while you wait at the counter. Larger jobs, multiple cables, or anything with unusual connectors is worth leaving with us. Give those about a day.

Are thicker battery cables better?

Bigger is safer, but it is not automatically better. Oversized cable costs more, gets stiff enough to be a nuisance to route, and can be a real problem in a tight engine bay. The right answer is the smallest size that carries your current over your distance without meaningful voltage drop, and then one step up if you are on the fence.

Do you crimp or solder the terminals?

Both, on every cable. The crimp is what physically holds the lug to the copper. The solder fills the gaps between the strands so vibration cannot loosen the joint and moisture cannot travel up inside it. Then a heat-shrink boot goes over the whole barrel.

What gauge battery cable do I need?

Most car and light truck starting and ground cables are 4 or 2 gauge. Motorcycles and ATVs usually run 8 or 6. Diesels, long runs, and dual-battery setups go to 1/0 or 2/0, and forklifts and heavy equipment land on 4/0. Bring us the load and the length and we will be more specific than that.

Can you make marine battery cables?

We can build the cable with marine terminals, but we do not stock tinned or marine-grade wire. Trailered boat, standard cable is what most people run. Boat that stays in a slip, get tinned cable from a marine supply house.

Is there a minimum order?

No. One cable is a normal order. We build single cables all day, and we also do repeat production runs for shops.

Do you ship custom cables?

No. Custom cables are pickup at our Willoughby store. We build them here and you take them with you, which is also how we make sure the cable is right before it goes out the door.