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On battery cable length

Cardude

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Jun 25, 2023
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Texas
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My son’s van system has two 48v lifepower4 server rack batteries connect to bus bars with equal length and size cables and then fed to the inverter with equal length cables.

He might need to add another battery at some point, but the third battery will need a bit longer cables to get to the bus bars, like maybe 4” longer. Is this a problem? Would he need to change out all the cables to keep them equal length?
 
 
It will work fine. You can get good performance even with 400 inches of extra cables to one module versus another.

You'll have more variation just from the different torque you put on the lug nuts than from four extra inches... but it won't matter anyway. They'll do great.
 

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