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Old 08-01-2016, 06:05 PM   #41
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I plan to install solar next year and I plan to have six six volt batteries, so I can run my microwave and tv.


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Old 08-01-2016, 06:11 PM   #42
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Wow

I certainly envy ur plan. U might want to spend some time sizing ur needs. 4 six volts are most people's Cadillac but 6 are / well just special. I'm not questioning u but would be interested in how u arrived at 6 being required. U are are the right place as we are all learning. All the best !

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Old 08-01-2016, 07:11 PM   #43
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I have four cheap six volt batteries that came with the camper plus I have four Trojans hooked up to a 3,000 watt inverter for the microwave and tv. Right now they get charged up on shore power and generator. But solar power is coming, just don't have the money to do everything at one time. Right now I'm buying a washer/dryer stackable unit plus a Direct TV satellite dish to be installed on top of camper. But next year and then solar. I plan to get rid of the four cheap batteries that run my residential refrigerator and install the Trojans there and then put in six new Trojans for my inverter. I would like to install a pure sine wave inverter, a 2,000 watt is expensive but you can't take it with you when you go


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Old 08-02-2016, 12:32 AM   #44
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Nothing wrong with using 6 batteries in your system. The less you draw the batteries down, the longer they will last.

I have six batteries in 3 separate battery banks on my RV with 400 watts of solar panels for a total of about 650 amp-hours. We use quite a bit of the microwave and lots of TV at night (TV and DVD player), heater runs all night even in the summer, and we use about 15% of our battery capacity according to our trimetric. The worst we saw was about 50% usage because someone forgot to put the fridge on propane only.

Will be putting on another 300 watts of panels next year so we can have faster charging to 100%.

PS: We camp in the Colorado mountains. Temps got down to the low 40's at night and it was a welcome relief compared to the 90 temps in the city.
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Old 11-17-2016, 10:26 PM   #45
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Complete Solar set up

Hey everyone,


I thought I was done doing the research for my solar system, but I guess I will always be reading about others to get a better handle on it.


So this is the set up I am planning on installing by Jan 2017.


Attachment 125383

Solar Extreme Charging System
Live Off-Grid in Style

This system will produce enough power to run up to 3000 watts of appliances or electronics while simultaneously, depending on your exposure to the sun, topping up your battery bank at a rate of 27 amps per hour.
Everything You Need in One Package

System includes solar panels, pure sine wave inverter with remote, solar controller, cables, and mounting parts—everything you need to install and run this exceptional solar system.
Reliability You Can Count On

Our products are tested and produced with quality components and backed by industry-leading warranties. Go Power! has been supplying mobile power solutions for 20 years.
System Contents

  • 3 x 160 watt solar modules (each module being 7 amps I will most likely add 1 more, not to exceed the limit of the 30 amp controller)
  • 3000 watt pure sine wave inverter
  • 30 amp PWM solar controller
  • 75 amp smart battery charger (I am going to upgrade this to the 100 amp)
  • 30 amp pre-wired transfer switch
  • DC inverter fuse & cable install kit
  • Inverter remote
  • 50' of MC4 output cable
  • Mounting hardware


Attachment 125384
  • The tilting kit looks simple enough, good for not only trying to soak in more sun but also getting the panels out of the way to clean the roof

    Attachment 125385
  • Seeing how my 2014 sierra did not come with a cable entry box already attached to the roof and my refrigerator vent is in a slide out , I got to get one of these guys.

    Attachment 125386
  • Surge guard, even though I have surge protection on my entertainment center, I thing after I hook up the switch box I will connect this baby between the switch box out -and the circuit panel.

    Attachment 125387
  • I kind of mapped everything out where I plan to install it. I have done this twice already, 1rst time where I initially wanted to put it, then this time after measuring twice and comparing the dimensions of all the components.

    Attachment 125388

This is my idea of where I am going to store my 8 each Trojan 6 V DC batteries. I have to fabricate everything except the batteries and slide rails.

so I hope I did my math right, I was reading a comment that was left on the 3000W inverter, basically this person said it was great an could ron his washing machine and drier, microwave, TV computer and a couple other things for 5 hours before his batteries drop below 12 VDC. his battery pack he said is 425 ah, so with my 8 6 VDC batteries each rated at 20-hr rate of 225 should mean that my battery pack would be rated at 1800 ah? does this sound right?



T-105 RE Deep-Cycle Flooded
Battery Specification
@25 Amps 447
@75 Amps 115
5-Hr Rate 185
10-Hr Rate 207
20-Hr Rate 225
100-Hr Rate 250
1.50 Length 10.30 (262)
Width 7.11 (181)
Height 11.67 (296)

Capacity Minutes Capacity Amp-Hours Energy (kWh) Dimensions inches (mm) Weight lbs. (kg)
67 (30)
Please Feel free to let me know if I am forgetting anything or can make any changes for improvements. Measure 100 times and cut once.......currently this set-up is coming in at Approx. 676 lbs. after adding in the rest of the fabricated materials I would guess to say around 700 lbs. of which all of it is in front of the axles and adding to the weight on the truck bed. and to think a new onan 5.5 kw lp generator only weighs 279 lbs. hmmmmm.....
solar = approx. $3700.00
battery pack $1100.00
fabrication materials $1000
Total Soar System $4900.00
Cummins Onan QG 5.5 Propane RV Generator | 5.5HGJAB-1270
$3908.00
$1000.00 cheaper and 421 lbs lighter to just get the generator, could someone please remind me why go solar? (other than just going green)
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Old 11-17-2016, 11:31 PM   #46
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Quote:
Originally Posted by 2014 sierra View Post
his battery pack he said is 425 ah, so with my 8 6 VDC batteries each rated at 20-hr rate of 225 should mean that my battery pack would be rated at 1800 ah? does this sound right?
It is 900 amp hours at 12 volts. Putting two 6 volt batteries in series doubles the voltage but not the amp hours.

It is recommended not to discharge batteries below 50% of their capacity, so you end up with 450 usable amp hours in an eight battery bank.

As far as a claim to use a washer and dryer and microwave, etc. I would say one small load of clothes in a small top loader, followed by using a gas dryer. Maybe a use of 1 hour total. That would use about 120 amp hours. Then the microwave for maybe 30 minutes. That's about another 90AH. It goes really fast.

Easy to calculate the numbers. 1 amp at 120 volts requires about 12 amps at 12 volts. That's the 1 to 10 voltage increase and another 20% for conversion losses in the inverter. Example:

Microwave is rated at 15 amps @ 120 volts AC. That requires 180 amps of 12 volt battery power. Use it for an hour and you consume 180 amp. hours.
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Old 11-18-2016, 12:49 AM   #47
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Here may be the ultimate "Solar" ripoff:

Goal Zero Yeti 1250 Solar Generator | Power Packs | Goal Zero

OK, let's see. For $1600 bucks you get a 100 AH AGM battery worth $230. A PSW inverter worth $170. A Mppt charge controller worth $70.

AND SOLAR PANELS ARE NOT INCLUDED.

So $470 bucks worth of components that anyone can assemble. I guess that makes the fancy case and an LCD readout worth $1130.

And they claim "12 to 24 hours" runtime for a residential fridge. My Samsung 25 CuFt fridge uses 2 KWH a day, which means the Yeti would give me a whooping 7 hours runtime before I reach 50% capacity of a 100 AH battery.


Of course, this comes from a company that charges $300 for a 35 quart ice chest.


Man, I am in the wrong business.
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Old 11-18-2016, 04:46 AM   #48
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Quote:
Originally Posted by Bluepill View Post
It is 900 amp hours at 12 volts. Putting two 6 volt batteries in series doubles the voltage but not the amp hours.

It is recommended not to discharge batteries below 50% of their capacity, so you end up with 450 usable amp hours in an eight battery bank.

As far as a claim to use a washer and dryer and microwave, etc. I would say one small load of clothes in a small top loader, followed by using a gas dryer. Maybe a use of 1 hour total. That would use about 120 amp hours. Then the microwave for maybe 30 minutes. That's about another 90AH. It goes really fast.

Easy to calculate the numbers. 1 amp at 120 volts requires about 12 amps at 12 volts. That's the 1 to 10 voltage increase and another 20% for conversion losses in the inverter. Example:

Microwave is rated at 15 amps @ 120 volts AC. That requires 180 amps of 12 volt battery power. Use it for an hour and you consume 180 amp. hours.
Thank you, that does sound a bit more realistic.
ok, 900 amps, that's double what this other person had. so during the day with the quick rate of recharging, I should not have any issues, heck maybe 1 - 15k air conditioner might work also?

if you are saying I would HAVE 900 amps but only 450 usable amps. your also saying the guy I talked about who had 425 amps only had 212.5 usable amps? because I can only use half this means I should be starting with 24 vdc because I can only let them drop to 12 vdc? I think I am a little confused, last I remembered volts and amps are to different animals ( a new battery is rated ??? amps @ 12 VDC.) SO HOW AM I ABLE TO USE ANY AMPS IF I CAN'T LET THE BATTERIES DROP BELOW 12 VDC? I BELIEVE BATTERIES START LOOSING AMPS AS THE VOLTAGE DROPS, I ALSO THINK YOU CAN GO TO ABOUT 10.5 VDC BEFORE THEY DIE.....So only having 450 usable amps. is questionable. Please explain a bit more clearly. Now I am going to have to get out my fluke and refresh memory..... I think solar batteries are like car batteries, you use the batteries for starting and operating and they maintain the full charge due to the alternator, solar is the same (during the day) right? you use your stuff during the day and the solar system keeps the batteries charged. the only time to be concerned is at night right?
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Old 11-18-2016, 07:29 AM   #49
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Follow up

I'm pleased that I have installed the solar. I will be adding another panel. I'm not sure at the end of day that it is a financial winner but it does provide for some flexibility while traveling as U can stop for a day or two without hook up having creature comforts. I agree with comments that prior thought and planning are important.

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Old 11-18-2016, 08:26 AM   #50
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2014 S, you should probably start a new thread. Hijacking mat cause some who unsubscribed to not see and comment. I will comment when I get time to digest what you wrote. I see issues and have more questions for you. WW
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