Weather: Today began mostly sunny and clear, with breezy winds and cold temps. Partly cloudy skies moved in from the south by around noon. Tonight a front will bring a wintery mix through the day tomorrow.
- Lconvm failed this morning shortly after the sun began charging the batteries (around 0800 CST), but otherwise everything made it through the night. It appears that the fuse yesterday was not the issue. Our plan was to test every link in the power "chain" if the station was still down when we arrived. Unfortunately, the site was back up by the time we got to it. It appeared as though the increase in cloud cover could have been impacting the power, with the Sunsaver shutting down the power when the sun was fully out. The Sunsaver was blinking all three LED's in sequence (red - yellow - green) and had the charging light solid red. According to the manual, this indicates a failed temperature sensor on the Sunsaver, which is a critical error that would shut the power off. We decided to replace the Sunsaver with an older version we had in the base trailer, which seemed to solve the problem. We gave it about 40 minutes without incident before deciding to change the batteries to the new 6 V golf cart batteries.
- Lconvm officially has the golf cart batteries, wired in series, as of about 1600 CST. The batteries should have been 90% charged. We did blow the fuse on the power monitor board, but after replacing this everything seemed to work.
- We left the ATV parked behind the solar panels at uconv. We feel it should be safe there and is mostly out of sight.
- We noticed no other problems. Given the forecast conditions the next 2 night, April is calling off any chance of ops through the end of the project.