T-Spec Pos/Neg 4-Gauge Battery Terminal

Car battery terminal with two 4-gauge and two 8-gauge outputs

Item #: 12048BTPN

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6 Reviews

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Compact and heavy-duty

T-Spec designed this Pos/Neg battery terminal to be extremely compact, so you can make the battery connection for a 4-gauge power cable in almost any vehicle. The other outputs accommodate your vehicle's OEM factory wiring — and there's even room for upgrading that. This heavy-duty black nickel-plated brass terminal can be used on either positive or negative battery posts. Requires Allen head wrenches for installation. Warranty: 1 year.

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What's in the box?

  • Brass battery terminal
  • Liner ring

Product Research


Overview: This package includes a T-Spec v12-series single battery terminal that can be used on the positive or negative post. The terminal is made of solid brass with a flat-black finish. It features two 4 AWG and two 8 AWG outputs. This battery terminal is equipped with set screws for a secure connection to the battery post (4mm) and to the wires (3mm). Two Allen wrenches (3mm and 4mm) are required to tighten or loosen the set screws.

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T-Spec Pos/Neg 4-Gauge Battery Terminal Reviews

Average Customer Review:

6 reviews
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TSpec battery terminal

Written By Y7563, Michigan on Sunday, February 22, 2015

Crutchfield Customer Review (What's this?)

Good piece of gear. Metal sleeve from other review easily removed thus able to mount terminal on different battery poets with ease. Use metric Allen wrenches and works just fine.

Pros: Works fine.

Cons: N/A

Clean install

Written By Teka, Texas on Thursday, February 19, 2015

Crutchfield Customer Review (What's this?)

Makes for clean easy amp install.

Pros: My battery does not look cut up and ghetto.

Works great!!!

Written By Pete S, La Miranda, CA on Saturday, August 30, 2014

Crutchfield Customer Review (What's this?)

Greatest product for attaching more than 1 cable to battery.

Pros: Multipliable wire attachments

Cons: None

T-Spec terminal

Written By 122Viper, Lowell, IN on Saturday, March 08, 2014

Crutchfield Customer Review (What's this?)

I had a bad battery and corrosion ate away the wiring so I needed a new connector. This is a nice product, but it did not fit my battery terminal. It was waaaay to tight. There is a sleeve in the clamp, and the fit was so tight it would not seat so I ended up using a rubber mallet to pound it down. Needless to say, the clamp screw was useless since it was now too small. Not like it's not on there tight though, but if I need it off, it'll have to be pried and I'll have to get a new connector. The allen wrench screws seemed a strange size or stripped. I have multiple sizes, and one fit two perfectly, one a bit loose, and the other screw the wrench just turned and the next size up was too large. Weird. I managed to get all the wiring in and tightened to the point where hopefully nothing will pop out, especially the one wire on the bottom. If that comes out, I'll have to pry this thing off to get to it and since it's a car wire, I could have a major issue if it comes out. Fine for now, but I'll be looking to replace it. Given my experience, I would not recommend this.

Pros: Decent construction

Cons: Bad fitment, screws not all sized properly.

Battery Adapter

Written By foos57, Stockton, CA on Sunday, November 17, 2013

Crutchfield Customer Review (What's this?)

Nice and clean looking adapter to get power to my amplifier. Wish it had three 8-guage openings instead of two.

Pros: Easy installation and looks good.

Cons: None.

Battery Terminal should me a must

Written By Israel, Puerto Rico on Sunday, June 23, 2013

Crutchfield Customer Review (What's this?)

The best way to do things close to perfect, is installing battery terminals like these

Pros: clean

Get everything you’ll need to enjoy your new T-Spec Pos/Neg 4-Gauge Battery Terminal

The right tools will make the installation easier.
Skewdriver Pro SPK4042

Skewdriver Pro SPK4042

Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)

Item #: 180SPK4042


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