BE35 pilot reported a loss of generator while in night IMC.

Narrative

Elected to fly from ZZZ1 to ZZZ2 and back for instrument proficiency. Initial flight to ZZZ1 was uneventful; to include RNAV XX approach. On departure from ZZZ1; noted low voltage annunciation while level at 4000 ft in IMC. Requested and received climb to 6000 from ZZZ TRACON to get to VMC. After troubleshooting to no avail and advising ATC of situation; elected to continue to ZZZ1 which was nearest VFR airport. Shed electrical loads to include exterior lights and pitot heater; as well as dimmed interior lights. After handoff to ZZZ3 TRACON; was instructed to descend to 3000 at pilot's discretion. To avoid re-entering IMC; canceled IFR and descended visually as cloud ceiling broke up near ZZZ1. Made visual contact with ZZZ1; canceled flight following. Extended landing gear manually to avoid large electrical load on battery only and potential partial extension; and used only landing lights to illuminate runway. Postflight visual inspection revealed no obvious damage or defect to generator; and generator appeared to produce proper voltage during rollout and taxi. Generator had recently been serviced after previous failure and was advised by mechanic that all appeared to be well after brushes properly seated. Flew airplane for roughly 5 hours after service with no issues.Should have been much more cautious about flying with serviced generator; should have stayed day VFR until fully confident in generator. Likely should have advised ATC that I had disabled exterior lights to shed load. Considered return to ZZZ1 to minimize time in air; felt that returning to IMC to land faster presented more risk than continuing to VFR conditions.