Pre-wired Battery Boxes

A power system you can carry by the handles. Battery goes in, outlets on the outside are live. For the vehicle with no permanent 12V install.

Hardkorr Heavy Duty Battery Box Pro

Sale price ^$229⁰⁰ Regular price $269⁰⁰ Save $40⁰⁰

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Hardkorr Heavy Duty Battery Box Pro with 40A DCDC Charger

Sale price ^$679⁰⁰ Regular price $729⁰⁰ Save $50⁰⁰

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Hardkorr Heavy Duty Battery Box (Black)

Sale price ^$140⁰⁰ Regular price $199⁰⁰ Save $59⁰⁰

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Hardkorr Heavy Duty Battery Box (White)

Sale price ^$140⁰⁰ Regular price $199⁰⁰ Save $59⁰⁰

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Rekcharge 12V Portable Battery Box with Twin USBs, LED Light, Voltmeter & DC Outlets

Regular price$100⁰⁰

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Hardkorr Battery Box Anderson Plug Covers (Set of 5)

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

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Hardkorr 175A Battery Box Jumper Leads

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

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Pre-wired Battery Boxes

Overview

Pre-wired Battery Boxes Overview

About Pre-wired Battery Boxes

A pre-wired battery box is a power system you can carry by the handles.

Drop the battery in, close the lid, and the outlets on the outside are live. Anderson plug for the fridge or the solar. Cigarette sockets for the small stuff. USB for phones. A voltmeter so you can see where the battery is without opening anything. Some carry a DC to DC charger in the lid, so the same box charges from the alternator on the drive and runs the fridge at camp, with nothing else in the circuit.

That is a different product to a bare box, and it suits a different setup. It is for the vehicle that does not have a permanent 12V install and is not about to get one. A ute with a fridge on the tray. A wagon that does weekends. A boat with a single battery bank. A worksite where the tools need power and the vehicle is the generator.

The trade is that the outlets are where the box puts them, and the fusing is what the box provides. For a build with the battery hidden under a floor and outlets spread around the vehicle, that is the wrong shape. For a battery that lives in the back and everything plugs into it, it is exactly right.

Match the box to the battery's case size first, then to the outlets you actually use.

FAQs

Pre-wired Battery Boxes FAQs

Do pre-wired battery boxes have a built-in DC-DC charger?

Most entry level pre-wired battery boxes do not include a built-in DC-DC charger. These units typically provide the physical housing, fuses, and various power outlets like USB and cigarette sockets, but they require an external charger to properly manage power from your vehicle alternator.

Higher tier models may come with an integrated charger, which makes them a true plug and play solution for your canopy or tray. If your box lacks this feature, adding an external unit is the only way to correctly charge your auxiliary battery while driving. This prevents your starter battery from going flat and keeps your second battery healthy.

Explore our range of DCDC Chargers to find a compatible unit for your vehicle, or browse our selection of 12V Batteries to fill your box.

How do I connect a solar panel to a pre-wired battery box?

Connect your solar panel via the dedicated Anderson plug input usually found on the side or lid of the box. Most pre-wired boxes feature a specific input that is already fused and wired directly to the internal battery terminals, making it a quick and tidy connection for camping.

You must verify if your solar panel is regulated before plugging it in. If the battery box does not have a built-in solar controller, you need a panel with its own regulator or an inline controller to prevent overcharging. This simple connection allows you to keep your fridge and lights running while your vehicle stays parked in the shade.

Are pre-wired battery box voltage meters accurate for lithium batteries?

Built-in voltage meters provide a rough guide but are often less accurate when paired with lithium batteries. Lithium has a very flat discharge curve, meaning the voltage stays quite high until the battery is almost empty. A standard meter designed for lead acid might show a high reading even when the battery only has twenty percent capacity remaining.

To get a true understanding of your power levels, a shunt based monitor is much more effective. It measures the actual current flowing in and out of the battery rather than just guessing based on voltage. This gives you a clear percentage of remaining charge, which helps you manage your usage better during long off grid stays.

Explore our range of power accessories to find more precise monitoring tools for your setup.