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danno avatar image
danno asked

BMV 702 Battery Capacity Setting

Hi Everyone.
I also have a similar question and am seeking confirmation on what # to enter for Battery Capacity in the BMV 702 Setup. I just replaced my three 200 Ah lead acid batteries with three 255 Ah AGM batteries on my sailboat. One battery is on Battery Switch #1 and the 2 others are on Battery Switch #2, however I always have my Battery Switch set to “1 + 2”; meaning they are always combined together in parallel as one big house bank of 765 Ahrs.
I just set my BMV 702 to this number: 765 AmpHours. Is this correct?

Please let me know.

battery capacity
2 |3000
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1 Answer
Mark avatar image
Mark answered ·

If they are effectively all wired in parallel, then yes 765Ah is correct.

But you also need to ensure that the negative cables from both battery banks are wired through the current shunt.

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