question

carlos-oyarzun-moraga avatar image
carlos-oyarzun-moraga asked

BMV 712 doesn't match battery % state

Hi, please help!! I have 900A bank battery (48v) and MPPT 450/100, despite MPPT is on "float" condition, BMV does not increase battery % , why is not working?

BMV Battery Monitor
2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

1 Answer
klim8skeptic avatar image
klim8skeptic answered ·

It sounds like the mppt's negative has been connected directly to the battery negative, rather than the system side of the shunt.

Please check.

2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.