Will these work on my terminals for boat batteries?

Yes, as long as it is a top post battery. Be sure to check size of opening on the terminal you plan on buying. The bigger the battery, the bigger the terminal on the battery. Hope this helps.

I see the video of the negative not tightening. I have the same problem. What have others done to make it tight?

Hello, you can use 2 x Adjustable Spacers. I used the Spacers that came with it. It’s a-tight fit using the Spacers.

What is the block made of? looks like aluminum. what is the hardware made of? is it coated or solid brass ?

the hardware made of Nickel plated. Protective cover made of plastic. they d ok have a great connection and show a very good accurate reading on the volt metter.

My battery has one cable, but this terminal has two holes?

SUNMORN Battery Terminal Connectors, 0/2/4/6/8 AWG Inputs, Battery Terminal, Battery Post Terminals, Positive Negative For Car RV Truck Marine Boat

Do you get both postive and negative terminals?

If your car Both original + and - lead battery terminals were shot with frayed and broken wires, you did not have to replaced the entire cable assemblies.

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SUNMORN Battery Terminal Connectors, 0/2/4/6/8/10 AWG, Zinc Alloy | Heavy Duty, Corrosion Resistant, for Car, Marine, RV, Truck, 0-10 AWG, SAE/JIS Type A, Nickel Plated

Product ID: 135619888

Details

Color
Silver
Connector Type
Clamp
Contact Material
Nickel
Material
Zinc Alloy
Terminal
Screw Terminal

🔌150A continuous current rating

⚙️Fits 0-10 AWG cables with snug brass shims

🛡️Zinc alloy nickel-plated corrosion resistance

R603

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Connect with Confidence, Power Like a Pro!

POWER UP WITHOUT LIMITS - Supports up to 150A continuous current for all your 12V accessories—no compromises.
PLUG PLAY INSTALLATION - Multi-port design and included Allen wrench make wiring multiple devices effortless and damage-free.
BUILT TO BRAVE THE ELEMENTS - Premium zinc alloy with nickel plating plus clear covers keep corrosion and rust at bay, perfect for marine and off-road adventures.
COMPLETE KIT ZERO GUESSWORK - Everything you need in one package—positive & negative terminals, protective covers, and shims—ready to upgrade your ride.
CUSTOM FIT FOR EVERY BATTERY - Includes brass shims to ensure a tight, secure connection on both standard and worn SAE/JIS Type A posts.

SUNMORN Battery Terminal Connectors deliver a heavy-duty, corrosion-resistant solution for securely connecting multiple 12V accessories directly to your vehicle’s battery. Crafted from zinc alloy with nickel plating, these terminals support cables from 0 to 10 AWG and handle up to 150A continuous current. Designed for SAE/JIS Type A posts, they include brass shims for a snug fit on worn or undersized posts, plus clear protective covers to guard against moisture and dirt. Ideal for cars, trucks, boats, and off-road vehicles, this kit ensures a reliable, easy-to-install upgrade for professional-grade power connections.

Specifications

ASIN	B07QZRKXSL
Best Sellers Rank	#4,460 in Automotive ( See Top 100 in Automotive ) #10 in Automotive Replacement Battery Terminals & Ends
Brand Name	SUNMORN
Color	Silver
Connector Gender	Male
Connector Type	Clamp
Contact Material	Nickel
Customer Reviews	4.5 4.5 out of 5 stars (5,257)
Item Weight	9.07 g
Manufacturer	SUNMORN
Material Type	Zinc Alloy Nickel Plated
Maximum Voltage	12 volts_of_direct_current
Model	SUNMORN Battery Terminal Connectors
Number of Items	1
Part Number	SUNMORN888888888
Terminal	Screw Terminal
UPC	733205028660
Unit Count	1 Count

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R603

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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