Hi,
I bought a Drok 100A shunt battery meter. It worked fine for about 3 weeks.
Recently, I turned on my battery box, and the Drok is now showing 38 watts flowing IN. The box is not connected to anything, it should show 0. If I connect a 50 watt load, it shows 12 watts out.
Is there a way I can “zero out” this battery meter? Or has it just failed?