There are a few different types of portable 12V battery boxes on the market today. Here is a each type:

Portable Solar Battery Boxes: Portable solar battery boxes are designed to store and keep your batteries charged while you're out and about. They usually have built-in solar panels that help convert sunlight into electricity, so you can always count on these boxes to keep your batteries topped off. Some even come with an AC adapter for when you need to plug in and charge up your batteries at home.If you need more information about battery box you may navigate to https://perthpro.com.au/collections/battery-boxes.

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Portable Car Battery Boxes: Portable car battery boxes are perfect for use while you're driving. They have mounts that will fit in the dashboard or console of your car, and they usually have enough room to hold several batteries. Some even have LED indicators to let you know how much juice is left in each battery.

Portable Home Battery Boxes: Portable home battery boxes are perfect if you want something that will stay right where you put it. These boxes usually come with a built-in power bank that can charge up your devices when you're not near an outlet. Plus, they usually have space to hold several batteries, so you'll never be without power when you need it most. 

The best portable 12V battery box for you will depend on your specific needs. If you're just looking for a place to store your batteries while you're not using them, a portable solar battery box is the perfect option. If you're looking for something that will keep your batteries charged while you're driving, a portable car battery box is the perfect solution. And if you need something that will stay put in your home, a portable home battery box is the best option for you.