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Old 04-13-2012, 09:08 PM   #1891
Geek OP
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With a 50 amp charger I know I need to run 1.5x fuses (75amp).

Does anyone know of the top of their heads how I calculate what gauge of wire should I be using?

Is there any disadvantage to going overboard with the wire? (i.e. just running 2 gauge and knowing I have more than enough).

tia,
:frreaky
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Old 04-13-2012, 09:21 PM   #1892
drc42
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Quote:
Originally Posted by Geek View Post
With a 50 amp charger I know I need to run 1.5x fuses (75amp).

Does anyone know of the top of their heads how I calculate what gauge of wire should I be using?

Is there any disadvantage to going overboard with the wire? (i.e. just running 2 gauge and knowing I have more than enough).

tia,
:frreaky
Thicker wire is always better, other than the fact that it is more expensive and harder to bend and route the way you want it. Not sure what the official wire guage needed for that would be but essentially you want regular battery cables
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Old 04-13-2012, 10:31 PM   #1893
marchyman
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Quote:
Originally Posted by Geek View Post
Does anyone know of the top of their heads how I calculate what gauge of wire should I be using?
http://www.engineeringtoolbox.com/am...uge-d_730.html
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Old 04-14-2012, 05:55 AM   #1894
xdbx
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Wow! That looks awesome!

Be very glad you've got a nice camera up high! Mine becomes a gimmick with he single tray:




But becomes USELESS with the double tray.



If that second bike fell off, I wouldnt have a clue. I cant see ANYTHING around the side of the camper.

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Old 04-14-2012, 07:06 AM   #1895
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How scraped up is the back of that hauler from dips?
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Old 04-14-2012, 07:48 AM   #1896
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How scraped up is the back of that hauler from dips?
Ironically, not a scratch, and I didnt hold back. It's difficult to get a sense of scale from the iphone's wide angle, you know that. Those are 34" tires and the truck still has a bit of positive rake.
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Old 04-14-2012, 08:42 AM   #1897
CodyY
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Quote:
Originally Posted by drc42 View Post
Thicker wire is always better, other than the fact that it is more expensive and harder to bend and route the way you want it. Not sure what the official wire guage needed for that would be but essentially you want regular battery cables
0 gauge welding cable usually cheaper and more flexible. Available in bulk and been used for MANY car audio projects snd race cars
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Old 04-14-2012, 04:33 PM   #1898
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I don't have time for a full write up right now; I'll catch it up later.

Cheryl & I both spent a full 8 hours working on the van today. We're doing a mountain biking trip next weekend and we're trying to get a few things done before then (and then we have a 5 day trip coming up in May with the motorcycles in Utah).

Cheryl spent the entire day sound insulating.


I spent the day figuring this out... again nothing in the van being square...


The idea is a 1 foot panel at each end.. and then two sets of sliding doors in the middle


Here you can see the tracks for the sliding doors:


Mockup of what the door will look like (just holding the wood up to the back so it isn't in the track)


This wood panel will have the battery monitoring/charging control system interface panel mounted in it.


I haven't got up the nerve to cut the b-pillar's plastic for the front horizontal member yet


...to be continued.
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Old 04-14-2012, 07:35 PM   #1899
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Nice work.....it's really going to be awesome when that storage is available!

Where did you get that rear carrier? And how much? Link maybe.......thanks!
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Old 04-15-2012, 07:42 AM   #1900
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Lead acid vs. agm.

Lead Acid:
Positives: for $450 I can get 450ah of 6V golfcart batteries that can be picked up anywhere (or go with 225ah for $240). They charge quite a bit faster.
Negatives: I need to figure out how to ventilate the hydrogen. I need to "do maintenance" (i.e. add water routinely).

AGM
Positives: zero maintenance. zero ventilation needed.
Negatives: for $450 I only get 200ah. I would have to spend $900+ to get 450ah
Have to charge them slower.

My Sterling B2B charger will be here early this week. I need to make a decision....
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Old 04-15-2012, 10:14 AM   #1901
troidus
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Quote:
Originally Posted by Geek View Post
Lead acid vs. agm.

Lead Acid:
Positives: for $450 I can get 450ah of 6V golfcart batteries that can be picked up anywhere (or go with 225ah for $240). They charge quite a bit faster.
Negatives: I need to figure out how to ventilate the hydrogen. I need to "do maintenance" (i.e. add water routinely).

AGM
Positives: zero maintenance. zero ventilation needed.
Negatives: for $450 I only get 200ah. I would have to spend $900+ to get 450ah
Have to charge them slower.

My Sterling B2B charger will be here early this week. I need to make a decision....
Another positive for AGM is being able to mount them any way you like. A negative for wet cell is if you roll the van, they're going to rain acid down upon everything beneath them. How about Lithium-ion? Lots more money, but dry tech and much higher power density so you can get more power in less space.
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Old 04-15-2012, 10:38 AM   #1902
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Originally Posted by troidus View Post
...How about Lithium-ion?..
first time i've heard of this option; share more info?
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Old 04-15-2012, 01:17 PM   #1903
chacha
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Quote:
Originally Posted by Geek View Post
Lead acid vs. agm.

Lead Acid:
Positives: for $450 I can get 450ah of 6V golfcart batteries that can be picked up anywhere (or go with 225ah for $240). They charge quite a bit faster.
Negatives: I need to figure out how to ventilate the hydrogen. I need to "do maintenance" (i.e. add water routinely).

AGM
Positives: zero maintenance. zero ventilation needed.
Negatives: for $450 I only get 200ah. I would have to spend $900+ to get 450ah
Have to charge them slower.

My Sterling B2B charger will be here early this week. I need to make a decision....

AGM. The vessel I maintain used to have 16 8D cell type lead acid batteries and I swapped them all to AGM. Went from having a 2 week battery inspection cycle to just a once a month load test.

The fumes alone from charging will be enough for me to spring for AGM.
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Old 04-15-2012, 01:24 PM   #1904
troidus
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first time i've heard of this option; share more info?
I thought it'd be easier to find. I keep hearing about it, but folks must be setting up "prototype" contracts with the manufacturers, since OTC sales appear to be rare. I did find two retail solutions at electricmotorsport.com. One is a Flux Power 160Ah battery with built-in battery management, so it's very clean, but is over $1500. The other is 200Ah for just under $1500, but it may need an external battery management system. The website isn't clear on that. Either way, I think that's way over what Geek is wanting to spend on this, even if it'd cut the weight and volume in half.
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Old 04-15-2012, 01:49 PM   #1905
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FYI, i installed a couple of http://www.bannerbatterien.com/banne...-Bull-AGM3.php
The guys withe the muscle audio installations in their cars use them.

They charge very fast. I have a couple of tech-info on that, but in dutch. Unbeatable.

http://www.aftermarketonline.net/New...-Banner-now-OE


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