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Subject |
Author |
Date Posted |
Forum
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RE: Charge controller recommendations
Hi,
What I would love is a spreadsheet that would let me enter parameters and allow me to tweak the controller (if it is, in fact, tweakable).
smk my Blue sky flasher was solid--so it thinks the batteries are not quite fully charged. It was doing 1.6 amps into the banks.
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pianotuna
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05/21/13 10:12am |
Tech Issues
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RE: Charge controller recommendations
Hi,
Just for fun I triggered my PD to 14.4 volts. Amps shot up to a whole 2.28 going into all eight batteries. (am counting the starting battery since I have a trik-l-start on it now.)
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pianotuna
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05/21/13 09:33am |
Tech Issues
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RE: Solar Help
Hi Jim,
If he is going to flat dead on day 2 your numbers work. If he is only going to 50% they don't.
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pianotuna
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05/20/13 10:56pm |
Tech Issues
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RE: Solar Help
Hi Mick,
Here is a simple flow chart.
Budget-->Energy Audit-->Battery bank size-->number of watts-->PWM or MPPT.
Here is a link to the rather special spreadsheet that N8GS has created to help size solar battery charging systems!
Solar Spread Sheet N8GS
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pianotuna
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05/20/13 09:22pm |
Tech Issues
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RE: Charge controller recommendations
Hi,
And I want set it and forget it.
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pianotuna
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05/20/13 08:22pm |
Tech Issues
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RE: What did you do to your Class C MH today???
Hi,
Boondocked in the rain. More rain forecast. Thank goodness I have a good battery bank!
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pianotuna
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05/20/13 06:00am |
Class C Motorhomes
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RE: Question for the Battery Experts
Hi,
If you add more, then bank switching would be the "safe" bet. But since you have 300 watts of solar, my best guess is that the six volt twins start every trip bursting full, and the same thing happens pretty much every day during holidays.
There is always the generator, or alternator as a "back stop".
I believe that way back when the solar system was being planned I suggested more battery capacity. At least there is enough solar to adequately recharge a doubled up bank. It is rarely wrong to have too much capacity.
I'm semi full timing and am in the middle of a three day rain. It is cold enough that I'm running the furnace. It is a comfort to me to have lots of battery capacity.
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pianotuna
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05/20/13 05:46am |
Tech Issues
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RE: Charge controller recommendations
Hi smk,
You also have battery "sense" wires I believe on the morningstar. It's a VERY nice unit.
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pianotuna
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05/19/13 09:36pm |
Tech Issues
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RE: Eco-worthy 20a MPPT controller
Hi DS,
You would have to use a buck circuit to keep the voltage constant into an inverter with light bulbs as a load.
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pianotuna
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05/19/13 09:33pm |
Tech Issues
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RE: Charge controller recommendations
Hi,
My first RV had 30 watts of solar. The owner paid $1100.00 for it. It served him (and me) very well.
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pianotuna
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05/19/13 06:25pm |
Tech Issues
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RE: WATER DAMAGE????????
Hi,
If it is not yours, flea, run and rabbit away.
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pianotuna
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05/19/13 11:09am |
Class A Motorhomes
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RE: Eco-worthy 20a MPPT controller
Hi Ds,
As you can see rvnet doesn't do well with tables.
If you could do one line for each measurement with a description on the line it may make it easier for folks to understand the data.
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pianotuna
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05/19/13 11:05am |
Tech Issues
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RE: Ovenight parking Greater Sudbury -Sault Ste Marie
Hi,
I don't think you will find a free place to boondock between those cities.
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pianotuna
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05/19/13 10:24am |
RVing in Canada and Alaska
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RE: 110 power
Hi,
The inverter may be wired to power one or two outlets--or the entire RV.
Depending on where the TV is located there may be a relay that prevents power being used while driving.
Battery disconnect is used mainly for storage.
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pianotuna
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05/19/13 10:17am |
Class C Motorhomes
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RE: woman travelling alone
Hi,
I did read your previous posts. I was hoping for a specific list.
Read my previous post.
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pianotuna
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05/19/13 10:12am |
Beginning RVing
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RE: Question for the Battery Experts
Hi,
Be careful with load testing gel cells. They can be destroyed by that process.
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pianotuna
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05/19/13 08:59am |
Tech Issues
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RE: Question for the Battery Experts
Hi Fire,
Do nothing with the battery bank.
Don't bother to bring them "home" next winter. Just leave the Rogue doing its job.
Do beef up the charging path from the tow vehicle, if you have not already done so.
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pianotuna
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05/19/13 08:42am |
Tech Issues
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RE: woman travelling alone
Hi mockturtle,
And those "extra" concerns are? What to do about them?
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pianotuna
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05/19/13 08:36am |
Beginning RVing
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RE: Carrying Aux propane tank
Hi,
Have a mount made that rests on the rear bumper. Carrying propane inside a closed compartment is illegal.
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pianotuna
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05/19/13 06:48am |
Class A Motorhomes
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RE: Cold weather condensation solution?
Hi,
To stop condensation the temperature of the surface (of glass or walls) needs to be above the dew point.
Cover the windows from the outside.
Another solution is a 4 inch strip of 1/2 inch thick Styrofoam insulation along the bottom of the windows--again on the outside. The water condenses on the glass, flows down, hits the warm glass and evaporates back into the air.
Lowering the relative humidity also helps. Open a window and place an electric heater by it. Open a roof vent.
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pianotuna
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05/18/13 09:20pm |
Class A Motorhomes
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