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peter-3 avatar image
peter-3 asked

35w - 16w = 136w ?

screenshot-2022-07-29-191752.pngHi, trying to workout the logic of dc loads , So my 2 mppt controllers are generating only 35 watts now it is starting to go dark , my shunt says that 16 watts is being to the battery which means that 19 watts is being used somewhere , so why 136 watts ?

VRM
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nickdb avatar image
nickdb answered ·

Have you got a wiring diagram? Chances are something is bypassing the shunt.

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peter-3 avatar image peter-3 commented ·
I've checked that I haven't made a mistake , Battery to the shunt , the other end of the shunt to a busbar with the mppt chargers and inverter , So all loads have to go do through the shunt .
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marekp avatar image marekp peter-3 commented ·

@peter@peter247.co.uk

Are you sure that those three measurements are from the same moment in time?

Also where is the power needed for inverter to run.

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