PEASUG Copper Wire Lugs 130Pcs, AWG 2 4 6 8 10 12 Gauge Battery Cable Ends with 66Pcs Heat Shrink Tubing Set, 64Pcs Ring Terminals Connectors Assortment Kit for Marine, Automotive, Cables, Appliances

Why I picked up this kit

I bought the PEASUG copper lug kit because I needed an all-in-one assortment for a weekend of electrical tidy-ups: a new starter cable on an older truck, some battery leads on a small boat, and a handful of clean ring terminations in a solar shed. Instead of ordering individual sizes and heat shrink separately, I wanted a single box that would cover common gauges, include shrink tubing, and not require babying in rough shop conditions. On paper, this kit checks those boxes: pure copper, tin-plated lugs with bell-mouth entry and inspection windows, ring terminals for lighter wiring, and a decent spread from roughly AWG 2 through 12 with matching heat shrink in a carrying case.

What’s in the box

• 10 types of tin-plated copper lugs sized to cover common cable from AWG 2 to 12, with mixed stud sizes (6 mm, 8 mm, and 10 mm).
• 66 pieces of heat-shrink tubing in two sizes.
• 64 assorted ring terminals for smaller-gauge wiring.
• A compartmentalized plastic case.

It’s a true “grab-and-go” kit. I didn’t have to stop mid-project for one oddball lug or scrounge around for shrink.

Build and materials

The lugs are pure copper with a bright, even tin plating. The plating helps with oxidation resistance and makes solder work cleaner if you go that route. Each lug has a bell-mouth entry that makes cable insertion smooth, and there’s an inspection window so you can confirm conductor depth before crimping. The barrels are on the shorter side compared to premium long-barrel lugs, which matters for very high-current applications or where you prefer double-crimps. For general automotive, marine accessory, and small solar wiring, the wall thickness and barrel length were adequate in my use.

The ring terminals are the standard vinyl-insulated style you see in general electrical assortments. They’re fine for low- to moderate-current appliance and accessories wiring, not a substitute for a proper heavy-gauge lug on starter or inverter cables.

The heat shrink is thin-wall, non-adhesive. It shrinks cleanly and provides basic insulation and strain relief, but it’s not the thick, glue-lined type that seals out moisture in harsh environments. If you’re working in salt spray, under chassis, or anywhere that gets soaked or vibrates violently, plan to add adhesive-lined shrink or a secondary sealant.

In use: crimping, soldering, and fitment

I used a hex crimper for the heavy lugs and a ratcheting crimper for the small ring terminals. The copper barrels deform predictably under a hex die, producing solid crimps with clear witness marks. Conductor insertion was easy thanks to the bell mouth; the inspection window was actually useful—I could visually confirm full conductor insertion before committing to the crimp.

Size accuracy was good. The AWG 2 lugs accepted finely stranded welding cable without a fight, and the smaller sizes matched automotive primary wire as expected. Stud holes were true to size and deburred enough that they didn’t shave plating off the mating hardware. On the truck, a 3/8" (10 mm) eye mated to a starter solenoid post perfectly; on the boat battery switch, the 5/16" (8 mm) eyes seated flat under the nut and washer.

I did a few solder terminations after crimping to test how the plating handled heat. With a properly heated lug and rosin-core solder, flow was even, and the plating didn’t blister. I still prefer a mechanical crimp as the primary bond and use solder sparingly, but for those who like crimp-then-solder, these take solder well.

Electrical and mechanical performance

This wasn’t a lab test, but I did practical checks:

• Pull tests: With a single robust hex crimp on the shorter barrels, I couldn’t pull the conductor out by hand on AWG 4, 6, and 8. On AWG 2, I prefer a double crimp for belt-and-suspenders security. The barrel length allows a solid single crimp; a second crimp is possible if you overlap slightly, but a true long-barrel lug is better if double-crimping is your standard.

• Heat under load: On a bench supply driving a resistive load through AWG 4 cables, the lug areas stayed cool during 100–120 A, 10–15 second bursts. No hot spots, no discoloration.

• Corrosion handling: The tin plating gives a good head start. For the boat, I added dielectric grease under the shrink and used an adhesive-lined outer layer (not included) for a proper seal. After saltwater spray and a week outdoors, the connections looked clean. I wouldn’t rely solely on the included thin-wall shrink for marine exposure.

The case and organization

The included case is better than a bag of parts, but it’s basic. The compartments kept parts sorted during the day, and the latch stayed shut in a tool bag. Just note orientation: flip it open upside down and you’ll be picking up shrink tubing and ring terminals one by one. Labels are minimal; if you’re doing frequent work, a fine-tip marker to label compartments by gauge and stud size saves time later.

Where this kit shines

• Battery leads and accessory wiring on boats, ATVs, lawn equipment, tractors, and older vehicles.
• Solar shed or RV upgrades where you’re terminating a few runs of AWG 10–4 and want matching shrink on hand.
• General maintenance work where having a spread of sizes beats chasing individual part numbers.

The copper is conductive and crimp-friendly, the tin plating fights oxidation, and the bell mouth plus inspection window speeds up clean crimps. For most DIY and light professional tasks, you’ll get reliable terminations with standard shop tools.

Where I’d reach for something else

• Mission-critical or high-vibration environments (off-road racing, heavy equipment, commercial marine): I’d step up to thick-wall, long-barrel lugs with published specifications and adhesive-lined heat shrink. The shorter barrels here work, but they’re not my first choice when a connection absolutely cannot loosen or wick moisture.

• Fully submersed or salt-bathed terminations: Add adhesive-lined shrink or use a marine-grade heat shrink from the outset.

• Jobs that require specific compliance marks or traceability: This kit isn’t marketed as UL-listed or spec-certified, so for inspected installs, source accordingly.

Practical tips from my bench

• Use the right die: A hex or indent crimper that matches the lug and cable size makes all the difference. If you only have a hammer crimper, take the time to support the lug properly and make two even compressions on larger gauges.

• Prep the cable: Strip cleanly, don’t tin the wire before crimping, and check the inspection window before you crimp.

• Seal smart: For outdoor or marine work, slide on adhesive-lined heat shrink (not included) after the included thin-wall, or replace it entirely with glue-lined tubing.

• Label the case: Mark the compartments with gauge and stud size so the kit stays efficient.

Value

The appeal is straightforward: a wide range of copper lugs plus heat shrink and ring terminals in one inexpensive kit. Per-termination cost ends up low, and the quality is solid for the price. You can certainly buy heavier-duty components, but you’ll pay significantly more and lose the convenience of a prebuilt assortment.

Pros

• Pure copper, tin-plated lugs crimp cleanly and conduct well.
• Bell-mouth entry and inspection window improve accuracy and speed.
• Useful assortment from AWG 2 to 12 with common stud sizes.
• Heat shrink included; enough variety for most weekend projects.
• Good value, especially if you need multiple sizes in one box.

Cons

• Shorter barrels than premium long-barrel lugs; double-crimps are tighter on large gauges.
• Thin-wall, non-adhesive shrink isn’t ideal for harsh environments.
• Basic case organization; easy to make a mess if opened upside down.

Recommendation

I recommend the PEASUG copper lug kit for DIYers, hobbyists, and light-duty professional work where you want reliable, tidy terminations without overspending. The lugs are genuinely copper, the plating is clean, and the bell-mouth/inspection window design makes for fast, confident crimps. Pair the kit with a proper crimper and, for outdoor or marine use, upgrade the heat shrink to adhesive-lined tubing. If you’re outfitting mission-critical systems or need long-barrel, heavy-wall lugs with certification, look to a premium line instead. For everyday automotive, marine accessories, solar, and general electrical projects, this kit offers strong value and dependable performance.