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Fuses are a vital piece of safety equipment in any electrical system. Fuses protect the wire from an overcurrent event such as an electrical short or from trying to push too much power through too small of a wire. This blog post will teach you what type of fuse you need for your DIY camper electrical install.

Cheap vs Expensive Fuses

In the past, I’ve recommended very inexpensive fuses. They worked for a while and many people had good luck with them. Recently (since February 2020), both myself and the tech support team at Battle Born Batteries who I work closely with have seen an increasing number of quality control issues on these non-name-brand fuses that are so common on Amazon. These problems revolve largely around the fuse getting too hot under normal use. This would cause the fuse holder to melt, loosen, and cause the system to stop working.

So… if you wish to save some money and test your luck with these inexpensive fuses and fuse holders; that is your prerogative; but I can no longer recommend “no-name” fuses and fuse holders on So, the following list will include only fuses and holders from Blue Sea, Littelfuse, Bussman, Eaton, Spartan Power or similar that have, at least some kind of testing agency certification or code compliancy recognition (UL, ABYC, ROhS, etc).

How Big of a Fuse do I Need for [My Device]

This blog post is more about the various TYPES of fuses and not necessarily how to choose the sizes. If you want a more in-depth blog post & video that will teach you how to size a fuse, you can click here for the specific blog post on that topic:

Best Fuses & Fuse Holders for a DIY Camper Electrical Install

This list will show you the various types of fuses you will encounter during your DIY camper electrical install and teach you which ones are right for what purposes.


  1. This is why I try to stay away from anything Chinese, not just fuses but inverters, charge controllers and batteries!

    1. Obviously you can do whatever you like, but avoiding products for a specific country of manufacturer is not a good metric for determining if a product is good or poor quality. For example, which of the following would be a more quality item?

      A product that is designed in the USA; carries a UL listing, but manufactured in China.


      A product that does not carry any kind of UL listing or certifications but is made in Indonesia.

      The product with the UL listing that is manufactured in China will likely be a higher quality product.

      But if the only metric of finding high quality products was ‘avoiding chinese products’ would say that the non-UL listed product would be higher quality simply because it was not made in China.

  2. Love your content and easy instructions.. question. If I’m running a DC appliance to my WFCO WF-8930 distribution panel, do I need to bring the negative wire from my DC appliance back to my distribution panel, can I just ground the negative wire to metal (sheet metal) somewhere close to save on copper wire? assuming the Lithium batts are already chassis grounded and assuming I sand off any paint so that I have a good ground?

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