[RE-wrenches] Lithium battery cable lengths

[Barton Churchill]

Glad you found it, Jay. You also don’t need to match the length of AC conductors on paralleled inverters.


[cidb2f78c46-71ed-4265-93ae-19555889454e]Barton Churchill
Director, Power Division
2042 Stadium Drive Suite 2 • Bozeman, MT 59715 • (O) 406-587-2917 • (D) 406-589-4493
235 E. Broadway • Jackson, WY 83001 • (O) 307-200-2210
bchurchill at energy-1.net<mailto:blansing at energy-1.net>   |    www.energy-1.net<http://www.energy-1.net/>


From: RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> on behalf of jay <jay.peltz at gmail.com>
Reply-To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Date: Tuesday, July 20, 2021 at 7:29 PM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Subject: Re: [RE-wrenches] Lithium battery cable lengths

HI Barton,

Thanks for the explanation, and it confirms that battery one is doing more work than #6.

jay




On Jul 20, 2021, at 4:53 PM, Barton Churchill <bchurchill at energy-1.net<mailto:bchurchill at energy-1.net>> wrote:

I think you’ll find it stated in the Blue Planet installation manual. I’ve installed dozens of their systems over three years and never paid attention to cable length. One solar self consumption system I let run over the winter without ever reaching a full charge and the cabinets didn’t drift more than 10% SOC from each other. Blue planet does recommend a full charge at least once per month for balancing though. Matched cable length, again assuming properly sized, really doesn’t matter anymore.
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