12vdc Electrical Schematic

[lasketella]

I am new to DIY Electrical and I'm trying to learn what I can. Below are two diagrams showing how my system is.. 1) Currently wired... and 2) How I want it to be wired after I install solar and a charge controller.

Please offer suggestions if it looks weird or I'm missing some serious stuff. I've never dealt with solar controllers before now...

[DeepFrz]

Looks like you forgot to post your schematic.

[lasketella]

i'll be darned, looks like my schematics i spent so much time creating didn't post... lets see if this works...

[lasketella]

[DeepFrz]

I would suggest some reading material for you.

Recommended Books on Marine Electrical Systems - Resources - Blue Sea Systems

Also, if you check out Blue Sea Systems "add a battery" page there is some wiring information that might help.

http://bluesea.com/files/resources/i.../990310020.pdf

I don't think you have the MPPT charge controller connected properly. Your fuse panel should always be connected directly to your batter bank.

[JusDreaming]

i think you have one too many wires going to the switch.

[lasketella]

D & D,

I thought so too! but the top diagram is how this boat is already wired (the way it was wired when i bought it), so i just as well figured to keep it similar. I think I may just hook all three batteries together and forget about having the option to isolate one from the other two... they're all 3 identical batteries and the switch is always either set to both, or off... thanks


Deep Frz,

Thanks for the thoughts on the fuse panel. My charge controller has 6 slots... one labeled solar with a picture of a solar panel, one labeled battery with a picture of a battery, and one labeled "load" with a picture of a light bulb. (each with a +/-). This is the only reason I'm thinking of wiring it as such... If only this ebay purchase from china came with any instructions... grrr. What do you think that load connection is there for? another related note... I just bought an engel refrigerator that came with installation instructions recommending to hook directly to a battery (not through a controller or fuse panel as it comes with it's own in-line 10amp fuse). Perhaps I should just keep all the electronics hooked directly to the battery bank... anyone else???

thanks so far.

[DeepFrz]

I don't think you have the MPPT charge controller connected properly. Your fuse panel should always be connected directly to your batter bank.

I meant through the switch of course.

I have no knowledge of your controller but it doesn't make sense to me except maybe it is built to operate from the solar panels when they are outputting and then switch to battery when the sun don't shine. If that is the setup, then it is the wrong controller for a marine application. Is it a "marine" controller?

Maybe you can find a diagram of a hookup on the internet.

[DeepFrz]

OK, it looks like that is an "auxiliary" output as shown here in the Blue Sky manual. The switch/breaker panel should be connected directly to the batteries through the switch.

http://www.blueskyenergyinc.com/uplo...E_SB1524iX.pdf

[lasketella]

i bought it on ebay. it wasn't specifically a "marine" controller. it's a Wellsee WS-MPPT-30 controller. I'm tired of spending money, please tell me i didn't buy the wrong one and that this will still work. it's rated for 12v or 24v systems (allegedly autodetects your system voltage).

[DeepFrz]

Sure...

[Yachts66]

Curious what software you used to generate the electrical schematic? It came out quite nice.

Thanks,

Thomas

[lasketella]

Originally Posted by Yachts66

Curious what software you used to generate the electrical schematic? It came out quite nice.

Thanks,

Thomas

actually just made it kinda freehand in microsoft paint. a bunch of lines and circles and squares (and a couple text boxes). it took a little while, but i'm glad it got my point across!

[lasketella]

Deepfrz, i'm pretty sure i have those ammeters hooked up wrong. how (where) do i install those?