Whenever you see a diagram from any of us, don't assume the fusing is correct. AiLi Battery Monitor Voltmeter Ammeter Voltage Current Meter 8-80V 0-100A Auto Car Motor Boat Caravan RV Motorhome. There have been complaints about not showing proper fusing in diagrams so I am trying (and typically failing) to remember to do that. Without the device fuse the tiny wire could become a very smoky fire-prone fuse. The main fuse would not even notice a short on the tiny wire going to the shunt. Notice that the tiny positive wire to the shunt is fused seperately.

(I started with a drawing I had from helping another guy that had the fuse on the negative.) Here is how I more typically would do it: AiLi Battery Monitor Voltmeter Ammeter Voltage Current Meter 8-80V 0-100A Auto Car Motor Boat Caravan RV Motorhome 4.4 out of 5 stars 747 2 offers from 34. That works but I typically put the fuse/breaker on the positive side. Extension cable for AiLi Battery Monitor 80V100A (ASIN: B07CTKYFTG ) / 80V350A (ASIN: B07FGFFHC6).

(They should be the same gauge as the positive wire to the device) You should at least consider doing it for any high current devices you might have on the circuit.īTW: In my drawing above, I notice I show the fuse on the negative side. You may want to consider adding a negative return wire for all of your other devices as well. That is good but it needs to be to the P- of the shunt, not B. If I am understanding your set-up you are putting a heavy gauge wire between the inverter and the battery negative. That means the shunt is measuring the current to/from all of the devices except the inverter.Īs a side note: chassis ground is not typically considered a good path for the negative connections to appliances/devices. And my inverter is rated at 1200 watts continuous, with a 100 amp breaker as protection. My system is a12 VDC 220 amp-hour lead-acid battery source. I am going to purchase one of these units. Yes, the P- will typically go to chassis and, in you case it sounds like that is also the negative return for all of your devices except your inverter. AiLi Battery Monitor Voltmeter Ammeter Voltage Current Meter 8-80V 0-100A. If it is on the B- side of the shunt, the shunt can not measure current going to/from the inverter. Is the inverter negative on the B- or P- side of the shunt. Click to expand.Please provide a diagram of your set-up.

Aili battery monitor extension cable