Hello Robert Manning，

Can you get output voltage on output port? If output can work, how is the red and black wire connected to display? Is the connection still well ? Or would you like to show us how it is by images? You can upload pictures here or send it to service@droking.com

We will find solution for you once confirm the problem.

Best regards.

Hello  Larry McDowell,

Could you please kindly  point out which part it is firstly?

Best regards.

Hello Tom，

1. Please choose suitable wire gauge according to actual load current. If  the battery cable is too tiny to deal with large current, you should replace it with heavy wire.

2.  The circle you mean is a current transformer, which   is used to measure current.

3. Jumper cap is to decide where the module draw power from.  If  it draws power from meauring circuit, it can only measure DC 12- 90V voltage.

If you want to measure voltage reading below 12v, please connect indepent power supply (DC 10-60v) for it.

Best regards.

Hello Larry McDowell,

Pleae check if it is this item.

https://www.amazon.com/dp/B075RQCW7G/ref=as_li_tl?tag=proeng-20

We are sorr we can’t find AC output on this item. It only have one DC output port.

Best regards.

Hello Larry McDowell,

We are sorry we can’t confirm which item it is.

Could you please kindly offer product link or other inforamtion?

Best regards.

Hello Tom，

If connection is no problem, we are sorry the “OUT-” and “IN-” ports may be reversed.

Would you please try to exchange the wires on “OUT-” and “IN-?

Best regards.

Hello,

Current outputs from battery is discharging, If you charge battery, but AH value is decrease, thatr is to say you reverse connection. Please refer to our wiring diagram.

Anc capacity percentage on battery level icon = (actual charging or discharging AH value /preset  AH value)*100%

If AH goes up to 1.0, that means capacity is only increased by 1 Ah , it is imposible to show 95%.

Best regards.