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TorkLift HiddenPower Under-Vehicle Battery Mount with Battery Box

TorkLift HiddenPower Under-Vehicle Battery Mount with Battery Box

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TorkLift 12V Batteries,Group 24 Batteries,Group 31 Batteries Battery Boxes - TLA7727
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In Use/Installed

Add another 12V automotive battery to your truck so that your camper or RV can have power longer - and without straining your truck's system. Just clamp this mount to the underside of your vehicle and hook up the battery (not included). Call 800-298-8924 to order TorkLift battery boxes part number TLA7727 or order online at etrailer.com. Free expert support on all TorkLift products. Guaranteed Lowest Price and Fastest Shipping for TorkLift HiddenPower Under-Vehicle Battery Mount with Battery Box. Battery Boxes reviews from real customers.
  • All Info
  • Reviews (3)
  • Q & A (7)
  • Photos
  • Why etrailer?

TorkLift Battery Boxes

  • Camper Battery Box
  • 12V Batteries
  • Group 24 Batteries
  • Group 31 Batteries
  • TorkLift
  • Black Plastic
  • Custom Under-Vehicle Mount

Add another 12V automotive battery to your truck so that your camper or RV can have power longer - and without straining your truck's system. Just clamp this mount to the underside of your vehicle and hook up the battery (not included).


  • Lets you add a battery (not included) that ties into your truck's electrical charging system
    • Designed to be extension of your RV's battery when the RV is plugged into your truck
    • Provides extra battery power in your camper or RV to significantly extend the time you can run on your 12V system
  • Works for lead acid, AGM, sealed, gel cell batteries and more
    • For marine group 24-31 batteries
  • Quick-disconnect power connector eases installation and removal of battery
  • Sturdy polymer battery box included
  • Easy, no-drill installation
    • Clamps to truck frame, beneath truck
    • Includes necessary hardware
  • Custom designed for your vehicle
  • Made in the USA
  • Lifetime warranty

TorkLift HiddenPower Battery Mount Installed

A7727 Tork Lift Hidden Power Battery Mount with Box

Replaces A7703

Item # TLA7727

This Product Fits The Following Vehicles

Customer Reviews

TorkLift HiddenPower Under-Vehicle Battery Mount with Battery Box - TLA7727

Average Customer Rating:  4.0 out of 5 stars   (3 Customer Reviews)

Add another 12V automotive battery to your truck so that your camper or RV can have power longer - and without straining your truck's system. Just clamp this mount to the underside of your vehicle and hook up the battery (not included).

- TLA7727
by: 09/07/2020

works great. 875532

- TLA7727
2006 Lexus GX 470

The bracket is solid, but the mounting/securing of the plastic box to the bracket leaves a bit to be desired. It does protect the battery well from the elements, but it does not secure the battery down well. If you wanted to spend more money, you could get a battery box from the Offroad manufacturers that fits within the plastic box and bolt it down, which would be more secure. I’m going to be modifying the bracket and box so that I can attach a ratchet strap in place of the provided strap to make it secure as possible without breaking the bank. Eventually I might take some all thread and clamp down a bar across the top of the battery, similar to some older OEM battery securing mechanisms. 637084

- TLA7740

Review from a similar Hidden Power in Battery Boxes

Installed this about a year ago and have not had any issues with it. It works as advertised! Its not "easy" to install or remove with my current set up and heavy AGM battery. I likely have to many heavy lines going into the box and then connected a fuse box/distribution box on the outside of the box. I have been off road and have not damaged it at all! Great product to keep the "house Battery" out of the bed of my truck and attached low and out of the way! Trying to figure out if I can mount a second one!! 619125


Ask the Experts about this TorkLift Battery Boxes

  • Dual Battery Set-up with Torklift Hidden Power Battery Mount and Solar Connection
    The TorkLift HiddenPower Under-Vehicle Battery Mount with Battery Box # TLA7727 has internal measurements of 14-1/2" L x 7-7/8" W x 9-3/4" T. This mount is a confirmed fit for your 2004 Ford F-350 with 8 foot bed. It is possible to connect two 6V batteries to solar. You can either connect them in parallel to get 6V output or series to get 12V output. I've attached a photo of these options to assist. For your solar power, you can use the 2.5-Watt Solar Battery Charger # PTW2997.
    view full answer...
  • Will TorkLift HiddenPower Battery Mount Hold Group 31 Battery?
    The TorkLift HiddenPower Battery Mount # TLA7727 holds for marine group 24 - 31 batteries; it will work with lead acid, AGM, sealed and gel cell batteries. I've added links to a pair of video reviews on this battery box for you to take a look at.
    view full answer...
  • Could the TorkLift HiddenPower Under-Vehicle Battery Mount Attach to Trailer Frame
    Although the TorkLift HiddenPower Under-Vehicle Battery Mount with Battery Box # TLA7727 was originally designed for attaching to the frame of a truck you certainly could attach it to the frame of a trailer.
    view full answer...
  • Will a 6V Battery Fit in a 12V Battery Box or Holder
    Since 12V batteries are typically larger than 6V batteries, a single 6V battery should fit just fine in a 12V battery box (or holder) like the under-vehicle box # TLA7727. If you have two 6V batteries then you will need a larger box like the TorkLift # TLA7708R which is also available with a solar panel for charging as part # TLA7708RS. Attached are some review videos for you to reference. If you can give me some more insight into what you are needing I can make a more specific recommendation...
    view full answer...
  • Battery Box that Can Fit Trailer Frame
    If you look at the brackets of the TorkLift HiddenPower Under-Vehicle Battery Mount # TLA7727 you'll see that the top hook goes much wider than the bottom one. There wouldn't be a frame dimension that this will work with since trailer frames don't have wider top portions than bottom portions. This is a specific application for vehicle frames that happen to be shaped like this. For a frame mounted battery box we have the part # TLA7712R which has internal dimensions of 23-15/16" long...
    view full answer...
  • What Size Fuses/Breakers Should be Used when Adding a Second Battery and Hidden Power Battery Mount
    Provided that the fuses you want to install are rated for the amount of power that will be running to/from the battery you will be good to go. If you were to use fuses or breakers that are rated higher then that could allow for an overload condition before a fuse blows or a breaker trips. It also depends on how you have it set up. If the second battery is being fed from the main battery then you wouldn't need to have a high-rated fuse or breaker. If the alternator is feeding it then...
    view full answer...
  • Recommended Tork Lift Under-Vehicle Battery Box Mount for 1987 Ford Van
    The TorkLift HiddenPower Under-Vehicle Battery Mount with Battery Box # TLA7727 is meant for Ford F-Series pickups and for two specific battery types, Group 24 batteries and Group 31 batteries. My contact at TorkLift suggested their similar item # TLA7726 since the way it mounts will give it a more universal fit. They cannot guarantee it will fit your van but it should definitely be better option than the other kit since it bolts on from the side. Please refer to the linked video for...
    view full answer...

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Info for this part was:

Written by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Isabelle B

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