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guitarbaby
Newbie

Joined: 22/02/2009
Location: Canada
Posts: 15

Posted: 09:51pm 05 Mar 2009

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hello could someone tell me if i had windmill that puts out 400 watts say would you need a charge controller that would handle 400 watts thanks or how do you figure it out

niall1

Senior Member

Joined: 20/11/2008
Location: Ireland
Posts: 331

Posted: 12:49am 06 Mar 2009

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hi guitarbaby

its might be easier maybe to work it out thinking in volts and amps , not just the watts

if it was say a 24v mill rated at 400w thatd be about 16 amps of juice

it,d be good to pick a controller rated at a little higher wattage to give a bit of headroom..maybe one rated to controll 500w or 600w (about 20 amps or over ) at 24v

some more expensive controllers (often much higher wattage) can be pre set to work at different voltages

which is nice if for some reason you change your mill

just a few thoughts

Edited by niall1 2009-03-07

niall

CraziestOzzy

Senior Member

Joined: 11/07/2008
Location: Australia
Posts: 135

Posted: 01:23am 06 Mar 2009

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I would concur with niall1...think volts and amps. I would go 25% over for the protection
cheers

http://cr4.globalspec.com/member?u=25757

http://www.instructables.com/member/OzzyRoo/

guitarbaby
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Joined: 22/02/2009
Location: Canada
Posts: 15

Posted: 02:43am 06 Mar 2009

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thanks for your replys

Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5119

Posted: 05:51am 23 Mar 2009

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Repost of missing posts

guitarbaby wrote.....
hello i need help the controller i bought says you can divert the load to whatever you like say a heating element or whatever can somebody give me some ideas what or how to do this or maybe divert to another battery im just not sure what to do thanks

CraziestOzzy wrote.....
I always reckon that peltier units are a real great idea...several of them hooked up will freeze your beer nicely :)
Anyways, seriously - I am serious about the peltiers too

- find out how much amps you expect to waste at what voltage and and then get the wire specs (length, diameter etc) to make your "heater element".
Don't ask me the exact specs as I will give you the minimum figures to fry eggs and bacon with

I assume your controller is appropriately fused and protected from your dump load...otherwise you might have rig some stuff up before you wire an element or something up.
Cheers

The best time to plant a tree was twenty years ago, the second best time is right now.
JAQ

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