bing tracking image
  1. Battery Boxes
  2. NOCO
  3. Camper Battery Box
  4. Equipment Battery Box
  5. Marine Battery Box
  6. Trailer Battery Box
Commercial Grade Battery Box for Dual 6V Batteries - Vented
NOCO

Commercial Grade Battery Box for Dual 6V Batteries - Vented

Part Number: 329-HM426
In Stock
$139.94
Retail:$208.99
You Save: $69.05
Battery Boxes
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos

Need help with installation?
Locate installers near me
Battery box protects your automotive, marine, or RV battery against impacts, contaminants, and leaked battery acid. Ventilated lid features cable ports and locking knobs. Reinforced handles for safe grip. Molded plastic is impact and UV resistant. 1-800-940-8924 to order NOCO battery boxes part number 329-HM426 or order online at etrailer.com. Free expert support on all NOCO products. Great prices and Fastest Shipping for Commercial Grade Battery Box for Dual 6V Batteries - Vented. Battery Boxes reviews from real customers.
  • All Info
  • Reviews (135)
  • Q & A (0)
  • Photos

NOCO Battery Boxes - 329-HM426

  • Camper Battery Box
  • Equipment Battery Box
  • Marine Battery Box
  • Trailer Battery Box
  • 6V
  • 2 Batteries
  • Plastic
  • NOCO

Battery box protects your automotive, marine, or RV battery against impacts, contaminants, and leaked battery acid. Ventilated lid features cable ports and locking knobs. Reinforced handles for safe grip. Molded plastic is impact and UV resistant.


Features:

  • Battery box protects your automotive, marine, or RV battery against impacts, contaminants, and leaked battery acid
    • Great for installation on a boat, camper, motorhome, trailer, commercial equipment, and generators
  • Rugged, molded plastic is resistant to impact, UV rays, oil, gas, and battery acid
    • Maintains impact resistance in extreme conditions down to -20 F
  • Internal bumpers keep battery in place to prevent shifting and jolting
  • Ventilated lid secures to container with 2 bolt-down knobs
    • Multiple exit points allow dangerous acid vapors to be released safely
  • 8 Cable ports provide multiple battery wiring options with heavy gauge wire (4 AWG to 0 AWG)
  • Acid-resistant reservoir safely captures spilled battery acid inside the box
  • Reinforced handles ensure secure grip while carrying the battery
  • Meets Federal USCG 183.420 and ABYC E-10.7 requirements for marine use
  • Made in the USA


Specs:

  • Application: 6-volt marine, RV, and commercial lead-acid batteries
  • Battery size: dual 6V
  • External dimensions: 17-15/16" long x 14-5/16" wide x 14" tall
    • Internal dimensions: 14-5/8" long x 10-1/2" wide x 11-1/2" tall
  • Mounting base dimensions: 16-11/16" long x 12-5/8" wide
    • Mounting hole diameter: 5/16"
  • Temperature range: -20 F - 320 F
  • Weight: 7 lbs
  • 1-Year limited warranty


NOCO HM426 Dual 6V Commercial Battery Box Dimensions



HM426 NOCO Commercial Grade Battery Box for Dual 6V Batteries





Customer Satisfaction Score:

Ratings & Reviews

4.6

135 reviews
Review sort icon
Battery box protects your automotive, marine, or RV battery against impacts, contaminants, and leaked battery acid. Ventilated lid features cable ports and locking knobs. Reinforced handles for safe grip. Molded plastic is impact and UV resistant.

by:



by:



by:

Always have what I need and delivery



by:

Just want to thank you for going above and beyond in informing us of that status of our orders. I don't even have to request it.

Much Appreciated.



by:

Worked great.



by:

The box is as advertised and shipped quickly. I couldn't ask for more.



by:

Just what I ordered. Solid construction! Using it in the front of our RV for the batteries.



by:

This box works well. Sturdy, reliable.



by:

Fantastic customer service and shipping



by:

A very well made product. Fit the battery compartment in my RV perfectly...



by:

Well built battery box. Will be used for 2 12v batteries in parallel for RV Trailer.



by:

Worked great for what I wanted it for. etrailers Excellent to work with!



by:

Just what i needed for a dual battery setup. Im going to try to fit a solar controller in with batteries, I think I can make it happen. The sides of box could be a little thicker, but great product.



by:

Haven't installed as of yet,it looks like it will do the job.



by:

It is very light, durable, and easy to install. It is exactly what I was looking for. It will fit perfectly in my boat, keeping my batteries stable and out of the weather.



by:

I just received the new battery box, the quality looks good. I like the secure cover. This should provide ample power one I have the batteries installed to run my 12 Refrigerator a couple days.



by:

Just as advertised. Installed in RV in place of single 12V battery box. Perfectly accommodates 2 GC2 golf cart batteries.



by:

Just installed the box today. Verdict is still out. I'll have to cut two holes 1 3/4" in the top to insert bushing so that I can attach my vent hoses. Thought the walls would be thicker. Not sure the "feet" made for the anchor screws / bolts are going to work. They seem a little shallow, but I think it is anchored pretty good. I used self tapping metal screws to hold it to the floor and keep it from sliding around. My two Trojan T-105 6v batteries fit perfectly. I haven't attached the lid yet as I'm working on the vents. So far I'm pretty happy with my purchase.



by:

Replaced POS un-vented battery box installed by dealer in my 2016 Coachmen. New box holds my two 6v batteries secure and safe. I ordered and installed fresh air vent to keep gasses vented to outside. Unit is very durable and a definite up-grade.



by:

A great hard case for 2/6 volt batteries. Gives it a clean look. Used these boxes when I was a marine engineer. They contain all the battery liquids from batteries boiling over when charging.



by:

Great customer service



by:

Good battery box that fits my SOK 206Ah lithium battery. Well built and easy to install. I did drill a small hole in the bottom in case water was able to enter the box.



by:

Heavy duty construction. Bolt holes on outside corners for installation. Wish they were on inside to help defer theft. Will drill holes for water drainage and to mount. Have to modify or build new mount on a-frame.



by:

The battery box for being a commercial grade leaves a lot to be desired. The construction of the box is paper
thin plastic. Definitely not comparable to previous 6 volt boxes. Hopefully it will last.



by:

I'm installing the new lithium battery system. I believe that this battery box will be too small and I'll return. However, I have not yet confirmed.


25
25

See what our Experts say about this NOCO Battery Boxes

  • Battery Box that Can Fit 2 Trojan T-105 Batteries
    The internal dimensions of the NOCO Commercial Grade Battery Box # 329-HM426 are 14-5/8" long x 10-1/2" wide x 11-1/2" tall. The dimensions of the Trojan T-105 batteries are 10.30 inches wide, 7.11 inches deep, and 11.07 inches tall which means that two of these would fit really well in the NOCO box! I attached a review video for this box for you to check out as well.
    view full answer...
  • Looking For A Battery Box For 2 6v Batteries
    Hey Donald, The battery box # 329-HM426 is a great fit for 2 6v batteries. In terms of it fitting on your trailer that just depends on the room you have to mount it. The actual size of the box is 17-15/16" long x 14-5/16" wide x 14" tall. So as long as you have a spot that it can fit this is going to work great for you. How often are you able to get out with that trailer?
    view full answer...
  • Battery Box For Trojan T1275 Deep Cycle Battery
    Hello Tim, thanks for reaching out. We currently offer one battery boxes that will fit your Trojan T1275 Deep Cycle Battery, and that is the following: - Commercial Grade Battery Box for Dual 6V Batteries - Vented # 329-HM426 This battery box has inside dimensions of 14-5/8" long x 10-1/2" wide x 11-1/2" tall so it is slightly larger than your battery. There will be a bit of room to spare inside the box but it will fit.
    view full answer...
  • Battery Box to Hold '68 Torino Battery Inside Trunk
    Hey Robbie, thanks for reaching out! The Snap-Top Battery Box # 329-HM318BKS measures 14-5/8" long x 8" tall x 7" wide internally so it won't be able to accommodate your battery, but we do have the Noco # 329-HM426 which measures 14-5/8" long x 10-1/2" wide x 11-1/2" tall internally and would be a great alternative for your application. You'll have a little extra room inside and you'll need to find a way to secure the box in the trunk of your '68 Torino (which is a beauty), but this will...
    view full answer...
  • Recommended Spare Tire Cover For Trailer Tire Size ST205/90R15
    Hey Richard, For a spare tire with tire size ST205/90R15 you would need the Universal Spare Tire Cover # 052963753875. Your tire size has a 29.53" overall diameter so this will fall almost in the middle of its 29" to 31" capacity range. It's made of a heavy-duty vinyl that can help block UV rays from dry rotting your spare. It has an elastic hem with hooks at the bottom for snug fit so that the cover won't blow away while you're out on the road.
    view full answer...
  • Battery Box Large Enough To Hold 2 Group 24- 12V Batteries
    I recommend the NOCO Commercial Grade battery box part # 329-HM484 to hold both of the group 24 batteries. From my research a group 24- 12 volt battery measures 10.25" long x 6.8125" wide x 8.875" tall. This battery box measures 21" long x 11-13/16" wide x 10-5/16" tall of internal usable space. This is the most cost effective box that we carry that is spacious enough for the 2 batteries. I would measure the regulator and make sure it can fit with the two batteries though. I have attached...
    view full answer...
    Image 1 for
  • Battery Box to Mount Four 6 Volt Batteries on A-Frame Trailer Tongue
    I do have thoughts, and while we do have battery boxes that will allow you to mount four 6 volt batteries, you simply do not have enough room inside your A-frame at the front to store that many batteries. Instead, you will need to mount them on top of the frame and the best option for this is two of the NOCO Commercial Grade Battery Box for Dual 6V Batteries # 329-HM426 which measures 17-15/16" long x 14-5/16" wide x 14" tall and has ports which allow them to be wired. I have added a link...
    view full answer...
  • Battery Box for Running Two Go Power Sun Cycle Solar RV Battery # 34277606
    The dual battery box part # 329-HM426 would fit two of the Go Power Sun Cycle Solar RV Battery # 34277606 that you referenced. The outside dimensions of the box are also compatible with the space you mentioned having as well.
    view full answer...
  • Battery Boxes Capable Of Holding 6V LifeLine Battery GPL-4CT On Trailer Tongue
    For 6-volt battery boxes we have a couple options to hold your two 6V lifeline GPL-4CT batteries. I was able to see that this battery is 10.28" long, 7.06" wide and 9.92" tall. First is the Commercial Grade Battery Box # 329-HM426 which is designed to hold 2 6 volt batteries. The interior dimensions are 14-5/8" long, 10-1/2" wide and 11-1/2" tall. The Exterior is 17-15/16" long, 14-5/16" wide and 14" tall. Next the TorkLift PowerArmor Solar Locking Battery Box # TLA7712RS will allow...
    view full answer...
  • NOCO Dual Battery Box to Fit Two 12 Volt Batteries
    So the internal dimension of the NOCO Dual Battery Box # 329-HM426 that you referenced is 14-5/8" long x 10-1/2" wide x 11-1/2" deep. For a similar box that will fit both of your batteries you'd want the NOCO part # 329-HM408 which has internal dimensions of 21-3/16" long x 9-5/8" wide x 11-1/8" deep. The underside of the box has 4 bolt holes already setup for attaching to your channel as well.
    view full answer...
  • Battery Box that Fits Battery Dimensions of 14 inch by 14 inch by 14 inch
    We only have one single battery box that will fit the battery size you mentioned needing. For that we have the NOCO part # 329-HM426 which measures 17-7/8L x 14-5/16W x 14D Inch. Nothing we offer will fit two batteries of this size though.
    view full answer...
  • Small Vented Battery Box Recommendation For Trojan 6V Batteries
    I recommend using the Tow-Rax Battery Box # 329-HM426 for your upgraded 6V Trojan batteries. This box has internal dimensions of 11-25/32" long, 8-27/64" wide, and 10-15/16" tall which should be more than enough space to fit one battery. You will have to use two boxes if you are using two batteries.
    view full answer...
    Image 1 for
  • Can The NOCO Battery Box # 329-HM426 Be Vented To The Outside Of A Cargo Compartment
    The Commercial Grade Battery Box for Dual 6V Batteries # 329-HM426 is a hard molded plastic so you could definitely cut a hole in the lid and run a hose from it to a vent like the Valterra RV Battery Box Vent with Cover - White Cover # A10-3300-05 ( # A10-3300BK-05) which can be mounted to the wall of your trailer. These vents fit 1-3/4" battery box hoses, which you would need to source from your local hardware store, and can be secured with hose clamps.
    view full answer...
  • Is AGM Group 24 Battery Size the Same as Lead Acid Group 24
    The standard AGM 24 battery dimensions are 6 3/4" Width x 9 7/9" Height x 10 7/8" Length which is a very common size. AGM or lead acid Group 24 size batteries would be the same size.
    view full answer...
  • Where are Vents on Commercial Grade Battery Box # 329-HM426
    The vent ports of the Commercial Grade Battery Box # 329-HM426 are around the top of the box underneath the lid. See attached picture to see the cut outs along the top of the box.
    view full answer...
    Image 1 for
  • NOCO Commercial Grade Battery Box Fit Optima Yellowtop Battery
    I looked up the dimensions of the Optima Yellowtop deep cycle batteries and one would easily fit in the NOCO Commercial Grade Battery Box # 329-HM426 that you referenced with room to spare. The internal dimensions of this are 14-5/8" long x 10-1/2" wide x 11-1/2" tall and your battery is: Width: 6.76 in Length: 12.16 in Height: 8.61 in
    view full answer...
  • Could Two GC2 Batteries Fit in NOCO Commercial Grade Battery Box
    The NOCO Commercial Grade Battery Box for Dual 6 Volt batteries part # 329-HM426 would be a great choice for you as it was designed basically for your exact situation and I checked the standard dimensions for a GC2 battery like what you have and they are 10.75", 7.25", and 12.25" which this box would easily fit two of.
    view full answer...


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee David F
Installed by:
David F
Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video by:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Alex H
Updated by:
Alex H
Employee Michael B
Updated by:
Michael B
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.