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inverters and battery cables [message #103575]

Wed, 20 October 2010 12:17

jayrabe

Messages: 509
Registered: June 2009
Location: Portland, OR

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Senior Member

Enjoyed the info and comments on the inverter thread. Good stuff. Several new bookmarks for my collection for future purchases. Smile

Raised some related questions so started a new thread.

Re: 2000w inverters running off 12v. 2000w at 12v is 167amps. Yikes. So this is why mounting the inverter as close to the battery as possible is a good idea to reduce voltage drop.

But the question is wire size. The table I looked at said 2ga wire, recommended by someone, maybe Bob, only carries 88A and 132A surge. To carry 167A requires 00ga (177A) or at least 1ga (167A surge).

So I know pulling a full 2000w from the batteries will drain them pretty quickly, but if you need 2000w, that's what you deal with. Extra battery banks anyone? What size wire are people using to connect their 2000w inverters to the batteries? Does anybody use the full 2000w and is there any efficiency or other advantage of having a 2000w inverter that you never load more than 1000w (which 2ga wire will carry)?

Thanks

J
76 PB
Portland, OR

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[Message index]

		inverters and battery cables By: jayrabe on Wed, 20 October 2010 12:17
		Re: inverters and battery cables By: hertfordnc on Wed, 20 October 2010 14:35
		Re: inverters and battery cables By: WD0AFQ on Wed, 20 October 2010 15:27
		Re: [GMCnet] inverters and battery cables By: jayrabe on Wed, 20 October 2010 19:18
		Re: [GMCnet] inverters and battery cables By: WD0AFQ on Wed, 20 October 2010 20:37

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