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Tow-Rax Battery Box - Aluminum - 12" Long x 8-5/8" Wide x 10-7/16" Tall

Tow-Rax Battery Box - Aluminum - 12" Long x 8-5/8" Wide x 10-7/16" Tall

Item # TWSP12B
Our Price: $163.21
Battery Boxes
Shipping Weight: 8 lbs
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Keep your battery protected from the elements with this durable aluminum box. Easy-to-use latch provides quick, simple access. 1-800-940-8924 to order Tow-Rax battery boxes part number TWSP12B or order online at Free expert support on all Tow-Rax products. Great prices and Fastest Shipping for Tow-Rax Battery Box - Aluminum - 12" Long x 8-5/8" Wide x 10-7/16" Tall. Battery Boxes reviews from real customers.
  • All Info
  • Reviews (19)
  • Q & A (0)
  • Videos (1)
  • Photos

Tow-Rax Battery Boxes - TWSP12B

  • Camper Battery Box
  • Trailer Battery Box
  • Universal
  • 12L x 8-5/8W x 10-7/16D Inch
  • Aluminum - Machine Finish
  • Tow-Rax

Keep your battery protected from the elements with this durable aluminum box. Easy-to-use latch provides quick, simple access.


  • Battery case safeguards your battery from the elements and protects your trailer or work area should the battery leak
    • Can also be used as a storage box for a variety of items
  • Built-in latch makes opening and closing the box a snap
  • Durable, lightweight aluminum construction
  • Machine finish


  • Overall dimensions:
    • Exterior including lid: 12" long x 8-7/8" wide x 10-7/16" tall
    • Inside opening dimensions including the lip: 11-1/8" long x 7-3/4" wide x 10-1/2" tall
  • Lid dimensions:
    • Exterior: 12-1/4" long x 8-7/8" wide x 7/8" tall
    • Inside: 11-7/8" long x 8-5/8" wide x 7/8" deep
  • Weight: 8 lbs

SP12B TowRax Aluminum Battery Box - Mill Finish

Video of Tow-Rax Battery Box - Aluminum - 12" Long x 8-5/8" Wide x 10-7/16" Tall

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Tow-Rax Battery Boxes - Trailer Battery Box - Camper Battery Box - TWSP12B

Hello, everybody, this is Jeff at Today, we're gonna take a look at this Tow-Rax Aluminum Battery Box. Now, this battery box will let you safeguard your battery from the elements, helps protect your trailer or your work area should the battery leak. It is designed to fit most Group 24 and Group 34 size batteries, but it also can be used as just a storage box for a variety of items. Now, it will include everything shown here on the table, it includes the battery box itself with the lid, it includes the battery hold-down with the threaded rods and the hardware for installation, comes with the lid latches with the hardware for installation, and over here you can see it comes with a 90 degree elbow and a PVC vent hose on it, I'm gonna show you where all these pieces go in a minute here, and it comes with the two rubber grommets. We'll start with the latches, but if you look on each side, you'll see a notch up here and then two holes here.

So basically, using the hardware, you would install your latch to the side there, and that'll allow you to latch the lid down into place, and then to release it, you just lift up on it to release it, so it makes it very easy to open and close the box. Now, there are two holes you'll see right here. These two holes are for the rubber grommets to fit in, and basically, what that does, those rubber grommets install in the holes and allows your battery cables to run through there and the cables won't rub up against the battery box, keeps it from getting damaged. Now, on the other side, you'll notice there's one hole, and what that one hole is for, that is for the installation of this 90 degree elbow with the PVC hose connected to it, and you'll install that into the hole right up here. And then that hose will just hang down, and what that does is that basically lets it to vent any battery fumes from out of the box, so they don't build up.

Now, this is a durable, lightweight aluminum construction, whole thing weighs about five pounds. You can see it has a nice machine finish to it, gives you a nice look. And also, one of the things, I wanna flip over the lid and show you on the inside lid, all the way around, has a nice thick rubber gasket on it, so that when you do latch it into place, it'll help seal it. Do wanna give you a few specs on this, the exterior dimensions I wanna give you. The width on it, it's right at 12 inches long, or I'm sorry, the length, 12 inches long.

The width on, it'll be right at 8 7/8 inches wide. And the overall height with the lid already installed on it is gonna be right at 10 7/8 inches tall. Now, I do wanna give you some inside opening dimensions, and I wanna show you the opening. Basically, there's about a 3/8 inch lip that hangs over all the edges, so what I'm gonna do is just measure the opening dimensions. So if we do the length of the opening dimensions, it's gonna be right at 11 1/8 inches.

The opening dimensions on the width, 7 3/4 inches. I don't know if I can show you the inside height. From the inside bottom to right up under that lip we're talking about is 10 1/4 inches tall. But again, you can just put your lid on there, and when you install your latches on each side, you just latch it into place to secure it to it. But that should do it for the review on this Tow-Rax Aluminum Battery Box.

Customer Satisfaction Score:

Customer Reviews

Tow-Rax Battery Box - Aluminum - 12" Long x 8-5/8" Wide x 10-7/16" Tall - TWSP12B

Average Customer Rating:  4.9 out of 5 stars   (19 Customer Reviews)

Keep your battery protected from the elements with this durable aluminum box. Easy-to-use latch provides quick, simple access.


The quality is amazing. It is expensive, but good quality. Unfortunately, it does not fit my modified Scamp trailer. Darn!! I have to send it back.


Your great


My pop-up didn't come with a battery so this worked out nice for adding one. Nice quality and quick shipping with etrailer.


A simple product but very high quality. Fit and finish were excellent. I painted mine to match the frame of the trailer I mounted it on but it was not necessary to paint it. It looks elegant. It is lightweight but sturdy with good gaskets to prevent water penetration.




I know it's only a battery box. However, I'm a hot rodder and a do it yourself guy. This box is perfect for my trailer and any other battery enclosure I need for any application. Very well built and has some great features. is the only I shop for trailer accessories or parts. And I have 4 of them.


Exactly what I was looking for. Clean and well built to house battery. I just couldn't imagine strapping some black, plastic box to my recently rebuilt front end on my vintage trailer to house the battery.


Decent product for price, perfect for front of trailer. works great with my electric jack. Sturdy construction.


If you want a good looking sturdy, waterproof battery box this is it. A little pricey but still looks like new after thousands of miles on the front of my camper.


I liked it so much as a battery box that I purchased two more to use as mini tool boxes


Extremely well made! Purchased for my horse trailer jack and mounted inside the trailer.


It worked out great. I added two double hinge hasps to it and mounted it on my camper. This was my way to prevent my battery from being stolen a 2nd time.


Very sturdy construction

to trailer frame rail for easy battery servicing.


After having it one year I have had no issues with light usage. I would definitely recommend it.


Great battery container.






See what our Experts say about this Tow-Rax Battery Boxes

  • Could Tow Rax Battery Box TWSP12B bolt to Side of Trailer Frame
    I'd use larger washers and three or four bolts but yes you could attach the Tow-Rax Battery Box # TWSP12B to the side of a trailer frame like you want.
    view full answer...
  • Can Tow Rax Battery Box TWSP12B Fit Lithium 100 ah Battery Dimensions 10.6 x 7.9 x 8.2 inches
    Yes, the inside dimensions of the Tow-Rax Battery Box # TWSP12B that you referenced would easily fit your battery. The inner dimensions of the box are 11-25/32" long x 8-27/64" wide x 10-5/16" tall. The box will easily withstand rain and normal wet climates but it would not be submergible so it's not technically waterproof.
    view full answer...
  • Will the Tow-Rax Battery Box TWSP12B Fit a Group 24 or Group 34 Battery
    Yes. The Tow-Rax Battery Box - Aluminum # TWSP12B has interior dimensions of 11-25/32" long x 8-27/64" wide x 10-5/16" tall, which is large enough to fit a Group 24 or Group 34 sized battery.
    view full answer...
  • Recommended Battery Box for Battery that Measures 12 Long x 6-1/2 Wide x 10-Inches Tall
    It sounds like a good fit for a battery box for your 12L x 6-1/2W x 10-inch deep battery is the Tow-Rax Battery Box # TWSP12B. This aluminum box has interior dimensions of 12L x 8-5/8W x 10-7/16D inches tall. All battery boxes we offer are shown on the linked page.
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  • Recommended Battery Box for a Boat Trailer
    I would be happy to help you. For a boat trailer you are going to want the Tow-Rax Battery Box item # TWSP12B. This box is aluminum and measures 12" Long x 8-5/8" Wide x 10-7/16" Tall. This box includes all necessary hardware to mount to your boat trailer's tongue.
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  • Vented Battery Box Recommendation for Inside Enclosed Trailer
    If you went with a vented battery box like the # TWSP12B you could have it vented outside and not have to worry about using a sealed battery. Otherwise a sealed battery would be best option. There's no easy or fully effective way to charge a trailer battery while towing but a charger like the CTEK 7002 part # CTEK56353 would work well to charge the battery between trips or at a campground.
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  • Is There a Group 26 Battery Box
    There is not a Group 26 battery box for some reason. The smallest battery box available that will fit your 9" L x 6-1/2" W x 8-1/2" H battery is the Tow-Rax Battery Box # TWSP12B. This measures 12" long x 8-7/8" wide x 10-7/16" tall; I know it's not precisely what you were looking for but I at least wanted to give you the option to consider if you wanted to go that route.
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  • How to Power Superwinch LT2000 ATV Winch
    No matter where you mount the Superwinch LT2000 ATV Winch # 1220210 it does need to be powered via a 12 volt battery with a circuit breaker between the switch and battery, as per the the cutout of the instructions I've added for you. You can use an auxiliary 12 volt battery and store it in a battery box such as # DW03188 or # TWSP12B and then have the circuit breaker temporarily mounted to the truck bed to do this.
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    Image 1 for
  • Availability of Trailer-Mounted Battery Boxes
    It sounds like you are looking for a trailer battery box that mounts at the front of the trailer near the tongue and coupler (the coupler is what grips the hitch ball on the tow vehicle). Battery boxes usually have some sort of ventilation, such as on the Tow-Rax Battery Box # TWSP12B which uses a clear plastic tube for this function. You'll want to check the battery type number for your two batteries since many of these boxes fit only specific battery sizes. I linked our main page...
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  • How to Wire Up and Install Electric A-Frame Tongue Jack, # JET-3500
    The Electric A-Frame Tongue Jack, # JET-3555, runs off a 12 volt battery. The best source for power would be from a 12 volt battery (like a car battery) mounted on the trailer. The red power wire on the Electric A-Frame Tongue Jack, # JET-3500, is the power wire and it will attach to the positive battery terminal on your trailer battery. First, remove the fuse in the in-line fuse holder on the red wire. Mount the jack to the trailer and tighten it down. The jack grounds through the mounting...
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  • Recommended Battery Box for Mounting on Boat Trailer Near Fulton 10.0 Power Winch
    For a boat trailer, you are limited at options for a battery box compatible with the aluminum frame. I recommend the Tow-Rax Battery Box - Aluminum - 12" Long x 8-5/8" Wide x 10-7/16" Tall # TWSP12B which can be mounted to the main frame or the winch post if desired.
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  • A-Frame Trailer Jack For Older Military Trailer
    There are no 24 volt A-frame trailer jacks, they do require a 12-volt power source. So what you can do is use a standard electric A-frame jack such as the Electric Jack with Footplate # EJ-3520-WBX with a battery box such as the Tow-Rax Battery Box # TWSP12B. Otherwise, you would need to use a standard hand-crank jack such as the Ultimate Trailer Jack - A-Frame # 322-RDJ-2K. I have added links below to video reviews as well as a link to our entire selection of A-frame jacks for you to...
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  • Recommended Low-Profile Crossbar Suggestion For A 2019 Toyota RAV4
    Without knowing which Thule setup you currently have on your 2019 Toyota RAV4 I won't be able to tell if you if a certain new setup will be shorter or not. What I can say with certainty is that the Yakima JetStream Crossbars # Y00428, with the towers # Y53TR, and the landing pad # Y98FR is an excellent option for your RAV4. When installed, this setup measures 5-5/8" tall, has a maximum weight capacity of 165-lbs, and is 50" long x 2-3/4" wide. I have attached a product review video...
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  • Recommended Battery Box for Wiring Jack to A-Frame Trailer
    The best battery box to mount a 12 volt battery to an A-frame is the TorkLift PowerArmor Solar Single Locking Battery Box # TLA7720RS because it allows you to mount, protect and easily use a 12 volt battery to power your Electric Trailer Jack # JET-3555. The PowerArmor comes with mounting brackets, is vented, has access holes for wiring, locks, and has a solar panel so you do not have to continually re-charge your battery with a charger. This is the best quality and easiest battery box...
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Do you have a question about this Battery Box?

Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Cole B
Installed by:
Cole B
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Wilson B
Updated by:
Wilson B

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