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Old 10-12-2015, 08:47 AM   #31
Skoolie
 
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Location: Rhode Island/Nicaragua
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Year: 1997
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Chassis: Freightliner
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Originally Posted by charles_m View Post

also, have you picked out your battery cables yet?? that's an expensive item that you don't want to skimp on.
Battery Cables: The bus at some point had a handicap lift in the back which had an Heavy power cable running the full length of the bus. While the lift was removed the cable is still there. I think it may be 0AWG but the the text is rubbed off the cable. I haven't pulled it all the way out yet but I figured I could use it to make my battery bank cables.
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Old 10-12-2015, 08:50 AM   #32
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Originally Posted by GrantRobertson View Post
True, if you need all of them all the time. But if you can cut it down to just one or two most of the time, you will save power in the long run.

Hey, which model of inverter is that? I want to look into those. With the right design you could be running only one inverter most of the time but without the inconvenience of turning them on and off all the time.

Thanks
The Chinese inverter I am looking at is on Ebay.

8000w 32000W LF Split Phase Pure Sine Power Inverter DC24V AC220V 110V 60Hz | eBay
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Old 10-12-2015, 11:43 AM   #33
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Originally Posted by charles_m View Post
great idea about running 12v loads in series to make 24v--ive been looking at 24->12v step down converters
Keep in mind the two 12v loads have to be exactly equal in their power consumption, or the voltage won't split evenly. It works easily for sets of incandescent lamps or LEDs. It could be tricky for other things.. water pumps whose power draw varies according to the water flow, etc.
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Old 10-12-2015, 11:52 AM   #34
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The welder I use is a Hobart Handler 140--longest I've used it is about maybe 5 minutes of actual welding time. The modsine inverter might have made it not perform perfectly, but I could hardly tell and I had great luck welding 1/8" pieces of 2" flat bar and agle iron. Used about 8% of my battery. The trick is having enough cells to distribute the load and thick enough wires to keep the voltage drop low enough so it doesnt make the inverter think you're out of juice and cut off. I used 0000 gauge wire from the batteries to the breaker (15') and then 00 gauge from the breaker to the inverter (3') with 00 gauge to interconnect the batteries. I also run a 2000 watt electric water heater for about 20-30 mins a day if it's sunny to heat my hot water. Never had a problem

I love your ingenuity, I wish I coulda had some free panels from my work! Best of luck out there. These are my fav projects in building a skoolie. Way more fun than grouting tiles :0
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Old 10-12-2015, 08:28 PM   #35
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Location: Rhode Island/Nicaragua
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Year: 1997
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Chassis: Freightliner
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Side rows going up

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Old 10-12-2015, 08:30 PM   #36
Skoolie
 
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Location: Rhode Island/Nicaragua
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Chassis: Freightliner
Engine: CAT 3126 7.2L
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1" conduit bringing 10 14AWG zip cables into the bus.

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Old 10-12-2015, 08:34 PM   #37
Skoolie
 
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Join Date: Jun 2015
Location: Rhode Island/Nicaragua
Posts: 107
Year: 1997
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Chassis: Freightliner
Engine: CAT 3126 7.2L
Rated Cap: 78
My Pallet Breaker Box

15Amp switches with 4 Amp glass fuse.



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Old 10-12-2015, 08:38 PM   #38
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Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 12,175
Year: 1992
Coachwork: Ward/AmTran
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Engine: dt466
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Quote:
Originally Posted by charles_m View Post
The welder I use is a Hobart Handler 140--longest I've used it is about maybe 5 minutes of actual welding time. The modsine inverter might have made it not perform perfectly, but I could hardly tell and I had great luck welding 1/8" pieces of 2" flat bar and agle iron. Used about 8% of my battery. The trick is having enough cells to distribute the load and thick enough wires to keep the voltage drop low enough so it doesnt make the inverter think you're out of juice and cut off. I used 0000 gauge wire from the batteries to the breaker (15') and then 00 gauge from the breaker to the inverter (3') with 00 gauge to interconnect the batteries. I also run a 2000 watt electric water heater for about 20-30 mins a day if it's sunny to heat my hot water. Never had a problem

I love your ingenuity, I wish I coulda had some free panels from my work! Best of luck out there. These are my fav projects in building a skoolie. Way more fun than grouting tiles :0
I love the Hobart 140. Easy to use, and easy to power.
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Old 10-12-2015, 08:40 PM   #39
Skoolie
 
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Join Date: Jun 2015
Location: Rhode Island/Nicaragua
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Year: 1997
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Chassis: Freightliner
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My feet while standing on top of the center row solar panels. Scary.

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Old 10-13-2015, 01:01 AM   #40
Mini-Skoolie
 
Join Date: Sep 2014
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the 300 watt panels im using are about 39x78" run them lengthwise across my bus. figure 40" of length for each panel. I get them from a wholesale installer i met out here who hooks me up with good deals on panels, cc's racking, and cables

with 16' of roof you could easily run 4 panels for 1200 watts

I saw your message--the only short buses i have have the lifts in them and are triton v10 gas engines. probably not what you're looking for
Wow! 1200 watts would be awesome. It would be well over my average expected usage, so my batteries would last a good long time.

You are correct, I would not want those shuttles. Thanks.
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