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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
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Our Price: $138.87
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TWSP12B - Aluminum - Machine Finish Tow-Rax Trailer Battery Box,Camper Battery Box
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Keep your battery protected from the elements with this durable aluminum box. Easy-to-use latch provides quick, simple access. Call 800-298-8924 to order Tow-Rax battery boxes part number TWSP12B or order online at etrailer.com. Free expert support on all Tow-Rax products. Guaranteed Lowest Price 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.
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  • Reviews (10)
  • Q & A (8)
  • Videos (1)
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Tow-Rax Battery Boxes - TWSP12B

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

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: 12" long x 8-5/8" wide x 10-7/16" tall
  • Inside dimensions: 11-25/32" long x 8-27/64" wide x 10-5/16" tall
  • 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 Tow-Rax Battery Boxes - Trailer Battery Box - TWSP12B Review

Today we'll be reviewing Part Number TWSP12B. This is the Tow-Rax battery box with aluminum construction. This battery case is going to safeguard your battery from the elements and protect your trailer or work area should the battery leak. This could also be used as a storage box for a variety of other types of items. It's got the built-in latch that's going to make opening and closing the box a snap. Here on the top inner portion of the lid you're going to see the rubber gasket. This is going to help to form a nice, tight fit.

The built-in latch system just needs to be installed here on the sides. That's what the knotholes are for, as well as the groove here at the top. What you're going to get . You're going to get four hex nuts, two lock nuts, four flat washers. You're going to get four smaller lock nuts and four small screws. That's going to be to install the latch assembly.

You're going to get two latch assemblies. You're going to get the clear PVC tubing. You're going to get the two threaded rods to mount it to the surface. Then you'd also use the washers and the lock nuts or the .. You have the two lock nuts for that. Then you're going to get this here.

This is a battery hold-down bracket which is going to hold your battery securely in place. You're going to get the two rubber grommets, the nylon net, and the 90-degree elbow. You're going to get the battery box and the lid. Just to go around the box real quick to show you what's what. Here on the side, you're going to have the holes for the latch assembly. That's going to be the same on each side.

Here at the front you're going to have the two holes. These two rubber grommets are going to install here, and this is going to allow your battery cables to come out and still keep a nice tight weatherproof seal here on the front of your box. Here on the rear is where you're going to install that 90-degree elbow and the nylon net and the PVC tube. That's going to act as a vent or a drain. On the bottom, we don't have any holes. If you do want to mount this using the rods, you're just going to have to pre-drill some holes through there. It's got the nice, consistent welds here on the corners at the rear. Take a look on the inside, nice wide-open space. Our measurements are going to be 12 inches in length, 10-7/16ths of an inch in height, and 8-5/8ths of an inch in width. That's going to do it for our review of Part Number TWSP12B. This is the Tow-Rax battery box. .

Customer Reviews

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

Average Customer Rating:  5.0 out of 5 stars   (10 Customer Reviews)

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


My pop-up didn't come with a battery so this worked out nice for adding one. Nice quality and quick shipping with etrailer. 408151


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. 519016


Great battery container. 380417


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. etrailer.com is the only I shop for trailer accessories or parts. And I have 4 of them. 378987


After having it one year I have had no issues with light usage. I would definitely recommend it. 307600


Extremely well made! Purchased for my horse trailer jack and mounted inside the trailer. 279014




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. 245879


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. 240332


Decent product for price, perfect for front of trailer. works great with my electric jack. Sturdy construction. 133646


Ask the Experts about this Tow-Rax Battery Boxes

  • 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.
    view full answer...
  • 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.
    view full answer...
  • 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...
  • 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...
    view full answer...
  • 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.
    view full answer...
  • 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...
    view full answer...
  • 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...
    view full answer...
  • 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.
    view full answer...

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Info for this part was:

Written by:
Lindsey S
Expert Research:
Jameson C
Expert Research:
Adam R
Installed by:
Cole B

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