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farmlad avatar image
farmlad asked

Bmv 700 battery %

Asked this before. I’m missing something.

BMV 700 is showing 13.27V

Battery % reading 46.1

Now surely this % should be higher without me adjusting via VE. This % just seems to fall daily

200ah LifeOp4 battery. All negs. attached to bmv700.

BMV Battery Monitor
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Alexandra avatar image Alexandra ♦ commented ·

@Farmlad

Maybe share your settings on the bmv? And also your battery charge profile on your charge source (float absorbtion etc.)

What are the consumed AH showing as? Do you have enough solar/charge to return the full AH consumed

You are either not triggering full charge or just not charging enough


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Mike Dorsett avatar image
Mike Dorsett answered ·

You need to check the voltage setting at which the BMV synchronises to 100%. Make sure that this is fractionally below your batteries maximum voltage that is charged to on a regular basis, i.e. Abs voltage -20mV. Then the unit will reset to 100% each time the battery is fully charged.

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farmlad avatar image farmlad commented ·
Winter so I’m getting up to 13.20 or so each day. Bulk

14.2v is my fully charged target

13.50v is float

So I’m not sure what Ive not set to get correct % on battery graphic

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