State of charge meter.. bad meter?

[springer01]

I just installed a digital SOC meter I got from a site sponsor vendor for my 36v txt. I installed it on a freshly charged pack and it was at 1 or fully charged, drove cart yesterday and it went down to about 80%... came home charged it. Jumped in this morning and it was still at 80% so I drove it thinking maybe the charger didn't hook up good last night. Got the gauge down to about 60% and hooked up charger. Charged all day charger was at 2amps and I checked the gauge a few minutes ago still at 60% so I got the voltmeter and it read 37.30 that was right after disconnecting the charger. So I pulled the meter out and checked voltage at the back of it... still 37.30. I then unplugged one of the terminals on the meter then plugged it back in and it went to 1. What the heck is this meter bad or what. Any ideas would be greatly appreciated