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 Battery Terminals, Heavy Duty Car Battery Terminal, Top Post Multiple

SUNMORN Battery Terminal Connectors, 0/2/4/6/8/10 AWG Battery Terminals, Heavy Duty Car Battery Terminal, Top Post Multiple

Product ID: 508310649

Details

Colour
Gold
Connector type
Clamp
Contact material
Brass
Insulation material
Copper
Terminal
Screw Terminal

🔋4-way multi-connection design

🔧Quick-release lever for tool-free install

⚙️Brass & tinned surface for corrosion resistance

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Description

🔋 Power Up Fast, Stay Connected Strong!

4 WAY MULTI CONNECTION - Securely connect multiple wires without messy pinching for reliable power flow.
MARINE GRADE DURABILITY - Precision brass with tinned finish resists corrosion even in harsh environments.
UNIVERSAL COMPATIBILITY - Fits 0/2/4/6/8/10 AWG wires and most 12V battery posts—perfect for cars, trucks, and marine gear.
EFFORTLESS QUICK RELEASE - Flip the lever, clean, and reconnect in seconds—no tools needed.
ALL INCLUSIVE INSTALLATION - Includes cleaning brush, washers, and Allen wrench for a spotless, tight fit.

SUNMORN Battery Terminal Connectors offer a heavy-duty, corrosion-resistant brass design with a quick-release lever and 4-way multi-connection points. Engineered for easy installation and maintenance, they include a cleaning brush and washers to ensure optimal battery performance across cars, trucks, and marine applications.

Specifications

ASIN	B09ZQ9YB92
Brand Name	SUNMORN
Color	Gold
Colour	Gold
Connector Type	Clamp
Connector type	Clamp
Contact Material	Brass
Contact material	Brass
Customer Reviews	4.6 out of 5 stars 197 Reviews
Insulation Material Type	Copper
Insulation material	Copper
Item Dimensions L x W x H	5.8L x 4.6W x 1.8H centimeters
Manufacturer	SUNMORN
Material	Brass
Material Type	Brass
Maximum Voltage	12 Volts (DC)
Model	SUNMORN Battery Terminal Connectors
Part Number	SUNMORN1556
Stud Size	#2
Terminal	Screw Terminal
Unit Count	1.0 Count

Reviews

M**.

What to say

Fancy looks nice works ok but i would prefer to get a real tough one

26.07.2023

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€ 48.69

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

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