One of the most common failures the REDARC technical support team hear about with dual battery installations is a failure of the fuse/holder. This failure can result in the fuse and holder melting causing the connection to be lost and, therefore, no charging of your auxiliary battery. This situation is usually diagnosed as a blown fuse however it is more likely attributed to a poor quality fuse holder.
Poor quality fuse holders often don’t make adequate contact with the fuse which can allow dirt and dust to get in between the contact points. This causes excess heat to be generated due to the high resistance. This excess heat can be enough to melt the fuse and the holder. Even if the fuse holder doesn’t melt, you could be losing valuable charge to heat dissipation.
REDARC fuse kits use only the best quality fuses and fuse holders designed to fit the cable required for the specified current and make a solid connection, giving you peace of mind that your installation is working efficiently and safely. REDARC offers fuse kits in 40A and 60A versions designed for BCDC installations and a 100A version designed for SBI installations.