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.

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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🔋 Power up your ride with confidence—connect like a pro, no sweat!

SAFETY YOU CAN TRUST - Insulated design and secure connections minimize risks of sparks and shocks, keeping your battery system reliably safe.
PLUG PLAY SIMPLICITY - User-friendly clamp mechanism lets you install quickly without professional help—get powered up in minutes.
SEAMLESS POWER TRANSFER - Precision-engineered conductive materials ensure optimal electrical contact for uninterrupted energy flow.
BUILT TO BRAVE THE ELEMENTS - Rugged, corrosion-resistant design withstands extreme temperatures, moisture, and vibrations—perfect for any environment.
UNIVERSAL FIT FOR EVERY RIDE - Compatible with 0/2/4/6/8/10 AWG batteries across cars, trucks, motorcycles, boats, and RVs—one connector to rule them all.

The SUNMORN Battery Terminal Connector is a heavy-duty, corrosion-resistant top post connector compatible with multiple AWG sizes (0/2/4/6/8/10). Designed for automotive, marine, and other battery-powered applications, it offers superior conductivity, easy tool-free installation, and built-in safety features to ensure reliable, long-lasting performance in harsh conditions.

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Manufacturer	SUNMORN
Part number	SUNMORN888888888
Item Weight	9.07 g
Product Dimensions	10.16 x 5.08 x 2.54 cm; 9.07 g
Is Discontinued By Manufacturer	No
Color	Silver
Switch Type	6-way
Special Features	SUNMORN Battery Terminal Connector, 0/2/4/6/8 AWG Heavy Duty Battery Terminal, Automotive Replacement Battery Terminal End, Quick Disconnect Quick Release, Carmarine Military Top Post Multiple
Included Components	Battery Terminal Connector Battery Terminal
Batteries Included	No
Batteries Required?	No
Item Dimensions LxWxH	10.2 x 5.1 x 2.5 cm

SUNMORN Battery Terminal Connector, 0/2/4/6/8/10 AWG Battery Terminal, Heavy Duty Car Battery Terminal, Top Post Multi Battery Terminal (Silver)

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