The MPPT-Boot Charger’s fuse is located in a black waterproof in-line fuse holder in the positive battery line. If the fuse is blown, replace it with a 10 A fast-acting ATO or ATC fuse rated for the maximum battery voltage. Automotive-style fuses are typically rated to 32 V and are not recommended for replacement.

Our fuses are 10 Amp / 58 Volt rated for the 36 V and 48 V Boost Mppt Chargers.

They are Optifuse Part# APR58-UL-10A or ANR58-UL-10A, rated 10 A / 58 V.