Once I correctly installed my Xantrex LinkPro battery monitor, I was puzzled to see that it was correctly reporting amps and amp hours, but not the voltage.

I emailed Xantrex for help and they told me to check the voltage on the back of the terminal strip of the monitor itself. If the reading showed the same voltage as at the batteries, I had a misread problem. If there was a discrepancy, I had a wiring problem.

Checking the voltage was easy with a multimeter with pointy tips since the + and – terminals are clearly marked.

In my case, the voltage was correct, so I had a misread.

I waited until unrelated events decalibrated my monitor and then I disconnected the fuses. I installed my monitor using the Xantrex connection kit. In my kit, the fuses are in black holders connecting the thin red wires. So disconnecting the fuses was a matter of unscrewing the holders, removing the fuses (careful, they are tiny!), and then reassembling the fuse holders.

I checked the battery monitor and while it was now decalibrated, it was showing the correct voltage.

Removing the fuses allows the monitor to power down and reboot itself and is apparently the solution for a lot of problems if wiring issues have been eliminated.