KickAss Products Batteries & Systems
Our heavy-duty 12V portable battery boxes can be securely mounted in your car, camper, or trailer. Easily remove the box when needed for more space or to power appliances at your
A dual battery system keeps everything isolated, safe, and properly charged using a DC-DC charger, solar panels, correct fusing, and quality cabling. In short: A dual battery system gives you guaranteed power off-grid without risking your ability to start the vehicle. Think of your 4WD power system as a chain — every link matters.
Just keep in mind: The more devices you bring camping, the more power you'll need. And the more power you need, the more expensive your dual battery setup will become. Cost is an important factor in all our decisions. And we're sure it is for you as well!
Whether camping, overlanding or on a road trip, your lithium dual battery system will keep your devices and appliances running without a hitch. Plug your fridge into the 12V socket and charge your mobile devices from the fast-charging USB-A and USB-C ports.
It gives you two independent power systems inside one vehicle: The two batteries communicate through a charging device but remain isolated so one can never drain the other. Here's the 2026, easy-to-understand breakdown:
PDF version includes complete article with source references. Suitable for printing and offline reading.
Download detailed specifications, case studies, and technical data sheets for our ESS containers and containerized PV systems.
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