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 > Your search for posts made by 'pianotuna' found 4057 matches.

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RE: Battery Charge Requirements

Hi, Let us suppose the battery voltage is 11.7 (god forbid). If you attach a PWM charge controller the voltage will appear to be 11.7, at least initially. As the battery charges the voltage will rise. Once the battery bank is 90% charged then the voltage will be say (this is hypothetical and a guess) 13.2. Eventually when the bank is 99% that will rise. Probably the charge controller at that point will scale back the voltage (if it is a good one). My original solar system on a previous RV had an old shunt type controller. When the voltage got high enough it would turn on and off. MPPT works a little differently--depending on where you are in the state of charge. 260 watts of solar is going to be enough to do a GREAT job on the batteries--but don't "cheap out" on the controller. Buy a quality unit. PWM will do a good job for you. At 130 watts I'd wish to see you use an MPPT controller. I'd also prefer to see 140 watts instead of 130. On my first solar system I had just 30 watts to maintain 250 amp-hours of battery bank. It worked well, because it was several weeks between trips and the solar had enough time to "top charge" the battery bank. I did not buy it--but that 30 watt system cost $1400.00. Hi, PWM controllers operate at the battery voltage. Pianotuna, I don't understand the 2nd part of this response, please elaborate. Looked like you set the controller for the type of battery which then uses the applicable settings. On some you can choose custom setting and set them to whatever you want up to the units max. I am planning on just one panel to start and will see how it works out, we're not heavy consumers so hopefully one is enough. One panel that fits (narrow), would be either 100 or 130w's. Still have to measure for length.
pianotuna 04/23/14 05:43pm Tech Issues
RE: Induction Cooking

Hi SWMO, No, the NuWave is not "on or off". It appears to cycle through various power levels, once it reaches the temperature setting. Check it with a kill-a-watt unit and you will see what I mean.
pianotuna 04/23/14 03:04pm Camp Cooks and Connoisseurs
RE: Induction Cooking

Hi, What is best about the NuWave is the multiple power levels. I've not managed to burn anything since I got mine. At the 200 F setting it is interesting to see the unit cycle on the watts it draws. It changes pretty rapidly in a sort of "dance" from 7 to 295 to 585 to 695 and then circles back to the 7 watt setting again. I wonder how my generator will respond to that.
pianotuna 04/23/14 12:19pm Camp Cooks and Connoisseurs
RE: Battery Charge Requirements

Hi, With the number of watts planned for there is no need to by pass the controller.
pianotuna 04/23/14 09:08am Tech Issues
RE: Battery Charge Requirements

Hi, 12 volt panels are nominally 17 volts. PWM controllers operate at the battery voltage.
pianotuna 04/23/14 08:07am Tech Issues
RE: Induction Cooking

I use a magnet to test.
pianotuna 04/23/14 08:02am Camp Cooks and Connoisseurs
RE: Atwood Hot Water Drain Plug

Hi, What is a full port plug valve?
pianotuna 04/23/14 07:04am Travel Trailers
RE: PWM vs MPPT Test Results

Hi, It would be interesting to see how a top of the line mppt unit fared against a top of the line pwm. For example a Tristar 45 amp mppt vs a Tristar 45 amp pwm.
pianotuna 04/22/14 09:31pm Tech Issues
RE: Battery Tender Jr. fine to maintain my two 6-Volt batteries?

Tender jr will be fine. Solar would be even better.
pianotuna 04/22/14 07:43pm Travel Trailers
RE: PWM vs MPPT Test Results

Hi BFL13, Converted to percentage 9.200/10.07 ~= 8.7 % more 11.85/12.74 ~= 8.7 % more 13.44/15.32 ~= 12.2 % more 14.50/16.65 ~= 12.2 % more I could at last compare the amps I got with an equivalent 230w on PWM. Result was a slight MPPT advantage in amps. EG 9.2/10.07, 11.85/12.74, 13.44/15.32, and 14.50/16.65 going from am-high noon.
pianotuna 04/22/14 04:54pm Tech Issues
RE: dual pane windows on an RV

Hi Big K, My RV is from 2003 and none of the dual panes have failed or fogged.
pianotuna 04/22/14 04:29pm General RVing Issues
RE: 50 amp plug hitting power panel lip

Hi, This looks like a 50 amp solution: http://www.amazon.com/gp/product/B000PGVZ30/ref=s9_cxhsh_co_g263_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=left-3&pf_rd_r=0XFSW6TSRK1CFH1E3P24&pf_rd_t=3201&pf_rd_p=1774864582&pf_rd_i=typ01
pianotuna 04/22/14 04:25pm Tech Issues
RE: dual pane windows on an RV

Hi, Dual pane keep the warm in and the hot out. They also reduce noise levels. Where I live single pane would BE a pain.
pianotuna 04/22/14 03:40pm General RVing Issues
RE: New member question on Lazy Daze for sale

Hi Cruzin, Yahoo is now sending authorization codes via text messages on the phone. Giving a fake number won't help that process much.
pianotuna 04/22/14 03:38pm Class C Motorhomes
RE: 50 amp plug hitting power panel lip

Hi, This might do for the 30 amp: http://www.amazon.com/Camco-55283-Replacement-PowerGrip-Handle/dp/B007HFT034/ref=sr_1_1?ie=UTF8&qid=1398202141&sr=8-1&keywords=30+amp+rv+plug http://ecx.images-amazon.com/images/I/41tavH%2B3wUL._SX425_.jpg
pianotuna 04/22/14 03:30pm Tech Issues
RE: LED Lights "And This Is A Verbatim Quote"

Hi Mr Wizard, Are those 12 volt or 120 volt?
pianotuna 04/22/14 03:17pm Tech Issues
RE: efficency and inverter generators

Hi, I get 7 hours 55 minutes when I'm running mine "flat out". I.E. running the fridge (325 watts), air conditioner (1200 watts), and converter (max 725 watts). Interesting that a on a 1500 watt load fuel only lasts 8 hours. That implies I may as well grab as many watts as I can while the air conditioner is running. I can't run the water heater (1200 watts), the air, the converter and the fridge, at least not in the Rocky Mountains. Mind you, at that time the generator had only 20 hours of run time on it. I also use the inverter to run the water heater when I'm needing to air condition. Sounds as if that is a good approach.
pianotuna 04/22/14 12:36pm Tech Issues
efficency and inverter generators

Hi, If I am going to run a Yamaha 3000 Sieb generator, is it more efficient to use it at nearly the maximum output, or is it better to stay at 50% or below? I want the most watts per gallon I can get. Anyone have test results or figures?
pianotuna 04/22/14 08:54am Tech Issues
RE: Generator question

Hi, My solar system meets all my needs except for air conditioning. I hope to upgrade it to take care of the air as well.
pianotuna 04/22/14 08:50am Travel Trailers
RE: Thin-Lite LED light fixture?

Hi, Is it lighting all of the leds when on the dim setting? Having the switch on the fixture is NOT going to work for my family. (Fine for me but the rest of them could not reach the fixture.)
pianotuna 04/22/14 08:45am Do It Yourself Modifications and Upgrades (DIY)
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