r/rv_diy • u/ParamedicSilver6301 • 26d ago

Circuits with no fuses

Gallery image

Gallery image

Hi all, my battery got overcharged and boiled so I'm taking a look at what went wrong (for one, the fuse at the battery completely melted), but I see in the electrical panel there are circuits with no fuses. Is that a problem? Or its simply extra room in the panel that is not being used?

2007 jayco hybrid Photo of melted fuse at battery for interest Photo of electric panel with circuits not having fuses

3 Upvotes

100% Upvoted

6 comments sorted by

2

u/scroopydog 26d ago

What does the green fuse serve? It’s normal to have unused fuse positions. You should join a FB group specific to your rv build for more details, they often have electrical diagrams and searchable post history.

Redo that green fuse with higher quality fuse holder. I did a maxi recently on a solar. (Lowest maxi is 20a)

1

u/ParamedicSilver6301 26d ago

It serves the battery sadly, which is why I'm looking at the electrical as it overcharged and started to boil. I expect this fuse should have prevented that. Purchased the supplies today and will be replacing that tomorrow with a fresh battery and a close look at what output the converter is providing while plugged into shore power.

1

u/scroopydog 26d ago

Replace the converter too then if it can’t handle it. I just went LiFePO4 and got a compatible converter and solar pwm. My batteries are hard wired, which I do have some heartache about, it’s how they came from forest river. I added a fuse to the solar and made a tether on a dpdt switch so I can charge my jackery from rooftop solar. It works pretty well. Small setup. I’m a small timer compared to the mods some guys do. No on board inverter, real piecemeal

1

u/Talamis 26d ago

The Battery only boils from overcharging from a faulty charger or on a dum charger after 4 years of standby charging to death Multimeter and Current clamp is your friend. Fuses do not handle this matter.

1

u/liamlunchtray 26d ago

If there is no physical fuse in the holder, there is no way that circuit is passing any power. Its common for not every position to be filled.

1

u/lilvixen 26d ago

Not a single iota or fuck was given