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64thunderbolt's avatar
64thunderbolt
Explorer II
Jun 28, 2013

Conv/charger

I currently have a wfco 55a. What would be a reasonable upgrade. I have 2 new dc batt and when plugged in it cycles from bulk to low quite often with very little load such as the furnace only. At night. when it goes to bulk the blower sounds like it wants to take off. It's very annoying. Thanks for any suggestions

The batt are fully charged and brand new. 1 trip on them.