Which model of TrippLite UPS are you monitoring? Many pollers are not supported. Here is the pollers that I'm using: EstimatedChargeRemaingin (1.3.6.1.2.1.33.1.2.4), UPSInputVoltage(1.3.6.1.2.1.33.1.3.3.1.3), UPSModel (1.3.6.1.2.1.33.1.1.2), OutputPercentLoad(1.3.6.1.2.1.33.1.4.4.1.5), Temp (1.3.6.1.4.1.850.100.1.2.2), TestDate (1.3.6.1.4.1.850.100.1.7.1), OutputSource(1.3.6.1.2.1.33.1.4.1), TestResults(1.3.6.1.4.1.850.100.1.7.2). Depending on the version of software on the webcard, you may have to apply a transform to InputVoltage, OutputPercentLoad and Temp.
If you would like my pollers, I can try to help. The data returned varies greatly by the Tripplite Model. We have about 130 of these UPSs and it it took a while to get all these issues figured out.