Forum Discussion
Salvo
Aug 22, 2013Explorer
Getting efficiency numbers from my Blue Sky charge controller is low on my priority list. It's not a big issue with me. The controller is in MPPT mode (bulk) for perhaps 35% of the day. It doesn't matter if controller efficiency is at 95% or 97%, it hardly makes any difference in the bulk charging time period.
How are you getting your measurements? Do you rely on the charge controller for current and voltage measurements? That is not very accurate. Someone posted Rogue controller data and it shows more power going out than coming in. In other words, the controller is more than 100% efficient! There are significant measurements errors in this controller.
To get reliable data, you need external current shunts and voltmeters.
Sal
How are you getting your measurements? Do you rely on the charge controller for current and voltage measurements? That is not very accurate. Someone posted Rogue controller data and it shows more power going out than coming in. In other words, the controller is more than 100% efficient! There are significant measurements errors in this controller.
To get reliable data, you need external current shunts and voltmeters.
Sal
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