I have both the Victron Smartshunt as well as several Juntek smart shunts. The Victron is some cool kit, very accurate and works well. At a fraction of the price, the Junteks were great too. No Bluetooth app but you could mount the wireless display anywhere in your van where it would make most sense.
Previous Juntek shunts would reduce the AH drawn to zero when you recharge the battery. After reading zero they'd stay there at zero, still showing a negative amperage flowing through to the battery (not really a physical possibility but you know what I mean). But they wouldn't continue counting AH drawn well into negative figures.
The latest batch of Juntek shunts do count into negative AH drawn. Each cycle this negative gets worse.
The problem is that when you once again discharge, the shunt first needs to get back to zero before it displays a reducing SOC. This just doesn't make sense and I can't see how this of use to anyone. Eventually I guess it would show you have 100%SOC when the battery is depleted.
The display on the Left (Juntek) is "incorrect", taken from a new batch we just bought. The one on the Right (Junctek) is from an older batch and what I want to see.
I have contacted who I think is the manufacturer but it's taking loads of to-and-fro to get nowhere. The Alibaba supplier that we bought them through is probably contacting the same bunch but it's all taking a long time.
Has anyone perhaps had this issue and solved it?
Previous Juntek shunts would reduce the AH drawn to zero when you recharge the battery. After reading zero they'd stay there at zero, still showing a negative amperage flowing through to the battery (not really a physical possibility but you know what I mean). But they wouldn't continue counting AH drawn well into negative figures.
The latest batch of Juntek shunts do count into negative AH drawn. Each cycle this negative gets worse.
The problem is that when you once again discharge, the shunt first needs to get back to zero before it displays a reducing SOC. This just doesn't make sense and I can't see how this of use to anyone. Eventually I guess it would show you have 100%SOC when the battery is depleted.
The display on the Left (Juntek) is "incorrect", taken from a new batch we just bought. The one on the Right (Junctek) is from an older batch and what I want to see.
I have contacted who I think is the manufacturer but it's taking loads of to-and-fro to get nowhere. The Alibaba supplier that we bought them through is probably contacting the same bunch but it's all taking a long time.
Has anyone perhaps had this issue and solved it?