More Solar for "Us"
Ok, I went off.the deep end? Bought 3 used 37watt uni-solar panels and a blue sky 2000e controller for the hefty price of $400, They were being listed as 75w panels, they are not The tested open...
Forum Discussion
The xantrex C-30 dollar controller did not respond the way you are thinking
Once it dropped to float it stayed at float voltage output until battery voltage dropped then it would increase voltage
It does not increase amps to maintain float voltage
Afaik this is true of all solar controllers, even the Grape 40
Granted as load is applied and amps increase voltage drops and there will be an increase in solar amps output
But the previous controller xantrex did not change anything
This is simply a function of decreased battery voltage aka resistance allowing more amps flow
It is a set voltage maintained with no load drain, any amps is determine by battery acceptance
With a load it will at some point switch back to boost after a low voltage threshold switch point is reached
it does not work like an LED light controller maintaining a constant
current setting
With the grape solar controller
I am able to set all those points and create my own charge profile
My batteries are Never at rest
As soon as charging stops they are in discharge use mode
If they are not being charged they are being discharged
I run the generator every morning
The solar Basically just covers day light use, running the fridge ,pc , lights , inverter etc..
So that my batteries have stayed charged without running the generator all day
From dusk till dawn I'm on battery power
There is NO storage mode float non use, unless the RV is in the shop
Once it dropped to float it stayed at float voltage output until battery voltage dropped then it would increase voltage
It does not increase amps to maintain float voltage
Afaik this is true of all solar controllers, even the Grape 40
Granted as load is applied and amps increase voltage drops and there will be an increase in solar amps output
But the previous controller xantrex did not change anything
This is simply a function of decreased battery voltage aka resistance allowing more amps flow
It is a set voltage maintained with no load drain, any amps is determine by battery acceptance
With a load it will at some point switch back to boost after a low voltage threshold switch point is reached
it does not work like an LED light controller maintaining a constant
current setting
With the grape solar controller
I am able to set all those points and create my own charge profile
My batteries are Never at rest
As soon as charging stops they are in discharge use mode
If they are not being charged they are being discharged
I run the generator every morning
The solar Basically just covers day light use, running the fridge ,pc , lights , inverter etc..
So that my batteries have stayed charged without running the generator all day
From dusk till dawn I'm on battery power
There is NO storage mode float non use, unless the RV is in the shop
