I'm sitting here, maybe 5-8kts of wind
, maybe gusts about 10-12max. Pretty calm considering the location (Culebra, PR)...and the wind generator
keeps power off (red LED tells me it's because it's a protection thing) at 14.6v. Then the voltage on my DC 12v goes quickly down to about 13.1v...a minute or two later the wind generator
goes back on again...about a minute or three later 14.6 and it turns off...repeat.
I'm curious now if maybe somehow the wiring
of the controller is responsible for this rapid drop from 14.6 to 13.1v on the 12v system.
The guy who installed it connected the "load" connections. Where I do not yet know. I will try and follow the cables
tomorrow when it's light again (it's 6:15pm and getting dark now). The output on the controller has 4 wires. Two for load and two for 12v assuming to the batteries with as short a run as possible but I'm suspecting that may not be the case.
If I understand correctly the batteries should be absorbing this voltage from the controller. Slowing this output from jumping quickly from 13.1 to 14.6...and vice versa. Do you suppose he connected the load to the batteries and the 12v to something else? Or maybe having the load connected to anything at all is where I'm getting this extra voltage on the 12v system?
I'm reading the 12v system voltage from an LED voltage meter mounted on my Nav Station panel. It's fed off the 12v coming off the main 12v bus that goes to the FM radio
and VHF radio
. This is a 2006 Lagoon
version. Two 4D house batteries, two 12v batteries for the engines. There is a 600W inverter
230v for powering the AC fridge. The batteries appear to share the common ground but have separate positive (red) lines. The house being tied together in parallel and the others with a switch to isolate them if needed to start the engines. This is as far as I can tell completely stock from the factory Lagoon wiring
At the moment I am using about 4A with just little electronics
going. The fridge and inverter
are off. I only run them when the engines are going or I'm on shore power
. FWIW if you use ice in the freezer
the top open freezer
stays pretty nice and cold on ice alone.
Just curious why the quick rise and drop on the 12v line and if the MPPT
controller is possibly mis-wired and causing this inability to feed the batteries properly. Causing possibly poor battery