Expected voltage sag?
I've got two 6 volt GC batteries. I have an inverter just powering a laptop. It's pulling under 100 watts AC. What kind of voltage sag would you expect that to put on these batteries if they were full...
Forum Discussion
It does sound like too much of a drop to me as well. I don't recall what this load did to the voltage prior to this past summer's battery beat down, but I think it was more along the lines of barely a dip. I'm sure I would have a good recollection of voltage readings this low.
I always mean to get around to the SG check, I do have a hydrometer. But I just can't seem to get around to opening the cases up to check. Maybe this weekend...
12.3V this morning at -1C doesn't seem unusual to me. The Kill-a-watt on the inverter output hovers around 90 VA with this laptop on and charging load, so rough estimate of 9 amp DC draw by the inverter. Over 10 hours, that's 90 Ah which is nearly half of the 200ish Ah capacity.
I always mean to get around to the SG check, I do have a hydrometer. But I just can't seem to get around to opening the cases up to check. Maybe this weekend...
12.3V this morning at -1C doesn't seem unusual to me. The Kill-a-watt on the inverter output hovers around 90 VA with this laptop on and charging load, so rough estimate of 9 amp DC draw by the inverter. Over 10 hours, that's 90 Ah which is nearly half of the 200ish Ah capacity.
