Forum Discussion
BFL13
Mar 06, 2018Explorer II
The Wizbang and Magnum each has a shunt and they agree on AH count and SOC. I don't know how that could be, because a monitor's shunt must have everything connected to it to get the full AH count in and out.
A solar controller is normally upstream from the monitor so the controller's neg to battery wire goes via the shunt same as all the other negs.
With the Wizbang, which substitutes for having any other monitor, its shunt would carry all the negs. But you have the other monitor too.
Is it possible you have some things on one shunt that are not on the other, so your AH count on either monitor is low compared with the real total draw from the bank? That would give you low voltage readings per monitors' idea of being at a higher SOC.
Even with one shunt you can get that if some things do not go through the shunt.
A solar controller is normally upstream from the monitor so the controller's neg to battery wire goes via the shunt same as all the other negs.
With the Wizbang, which substitutes for having any other monitor, its shunt would carry all the negs. But you have the other monitor too.
Is it possible you have some things on one shunt that are not on the other, so your AH count on either monitor is low compared with the real total draw from the bank? That would give you low voltage readings per monitors' idea of being at a higher SOC.
Even with one shunt you can get that if some things do not go through the shunt.
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