Battery Box Accessories

The parts a battery box does not ship with. Model-specific trays and straps, plug covers, jumper leads and the wiring between the box and the vehicle.

Hardkorr 50A 12V Dual Battery Voltage Sensitive Relay

Sale price ^$38⁰⁰ Regular price $39⁰⁰ Save 3%

View details
Hardkorr 8 Gauge Dual Battery Wiring Kit

Sale price ^$75⁰⁰ Regular price $79⁰⁰ Save 5%

View details
Hardkorr Battery Box Mounting Tray and Straps

Sale price ^$58⁰⁰ Regular price $59⁰⁰ Save 2%

View details
Hardkorr Battery Box Mounting Tray and Straps (For Hardkorr Battery Box Pro)

Sale price ^$58⁰⁰ Regular price $59⁰⁰ Save 2%

View details
Hardkorr Battery Box Anderson Plug Covers (Set of 5)

Sale price ^$12⁰⁰ Regular price $19⁰⁰ Save 37%

View details
Hardkorr 175A Battery Box Jumper Leads

Sale price ^$59⁰⁰ Regular price $69⁰⁰ Save 14%

View details

Battery Box Accessories

Overview

Battery Box Accessories Overview

About Battery Box Accessories

The parts a battery box does not ship with, sold on their own so you buy what your box needs. Which ones apply depends on the box model.

Mounting trays and straps. A box that is not fixed down is a heavy object with a handle, and on a track it goes where the vehicle throws it. The trays here are made for specific Hardkorr boxes, original and Pro, and are not interchangeable, so match the tray to the box you own. Bolt the tray to structure rather than to panel board; the tray is only as good as what it is fixed to.

Covers for the Anderson plugs on the outside of the box. An exposed Anderson contact face is an invitation to dust, and a dusty contact is a warm contact, and a warm contact is one that fails at the worst time. A cover that clips over the plug when nothing is in it keeps the face clean, and it takes two seconds to fit.

Jumper leads made for the box. These connect to a 175A Anderson outlet on a box that has one, rather than clamping to the battery posts. Whether a given box and battery can crank a given engine depends on the box's rated outlet and the battery behind it, so check the box specifications before relying on it; ordinary small-clamp jumper leads are the wrong tool for that outlet either way.

Wiring parts for the run between the box and the vehicle. A dual battery wiring kit supplies the cable, lugs and fusing for a box that is being connected properly rather than through whatever lead was in the drawer, and a voltage sensitive relay lets the vehicle charge the box battery while it is running and disconnect it before the starting battery is flattened. Size both to the run and the current you actually have.

None of it is expensive. All of it is the kind of thing you find out you needed on the day you needed it, usually a long way from anywhere that sells it.

FAQs

Battery Box Accessories FAQs

How do I securely mount a battery box in my ute tray or canopy?

Securely mounting a battery box is best achieved with a heavy duty tie down strap or a dedicated metal tray. A loose battery can cause electrical faults or physical damage to the housing when traveling over corrugated outback tracks.

Most boxes include external strap points, but for a more permanent solution, you can bolt a mounting tray to your canopy floor. This prevents the box from sliding and keeps the internal battery terminals safe from vibration and movement. It is a simple way to protect your power system from the rough reality of Australian roads.

Explore our range of Battery Boxes & Trays to find a solid base for your setup.

Can I replace the cigarette socket on my battery box with an Engel plug?

You can replace a standard cigarette socket with an Engel or Merit style plug as long as the cutout size in the lid matches. This is a common upgrade for travelers who want a more secure, vibration proof connection for their portable fridge.

Engel plugs feature a threaded locking collar that prevents the lead from vibrating loose on rough roads, which is a common cause of spoiled food. Make sure the wiring behind the socket is rated for the current draw of your fridge before making the switch. This upgrade helps you build total confidence in your food storage while you are off grid.

Find more connection options in our Cigarette Lighter Sockets collection.

What type of replacement fuses do I need for my pre-wired battery box?

Most pre wired battery boxes use standard blade fuses for the auxiliary circuits and a larger MIDI or ANL fuse for the main power input. You can typically find these fuses located inside a dedicated block or holder within the box lid.

It is wise to carry a spare set of fuses in your glove box or tool kit in case of an electrical fault. Using the correct amperage rating for each circuit protects your gear and your wiring from overheating if a short occurs. Replacing a blown fuse is much easier than repairing melted cables deep in the bush.

Check out our full selection of Fuses & Fuse Holders for your spares kit.

Do I need rubber dust covers for the Anderson plugs on my battery box?

Rubber dust covers are a practical addition that protects the internal terminals of your Anderson plugs from dust, water, and road spray. Without a cover, salt air and red dirt can build up inside the plug, leading to corrosion and poor electrical conductivity.

Using these covers is particularly useful for external plugs mounted on a tow bar or canopy wall. They keep the connection face clean and ready to use every time you plug in your gear. It is a minor detail that saves you from cleaning out gunk before every camp setup.

Explore our range of plugs and connectors to find the right protection for your system.