Progressive Dynamics 9260 possible issue
Hoping to solicit a bit of advice from the gurus here. I recently installed a PD 9260 and it seems to do a much better job charging my (2) Trojan T105 batteries. The only issue is, the converter ...
Forum Discussion
09FLSTC wrote:tenbear wrote:
When I first switched to the PD9260 I noticed the power bill went up by several $$. I couldn't think of any other cause so I switched to a Battery Minder for use during storage. My bill dropped down.
That indicated to me that the PD was drawing current while not doing very much. I never did feel it to see how warm it got, nor did I measure the current drain.
Huh? So where do you think that energy went?
Not having done any measurements I don't know. I think some of the energy goes to maintaining the battery full charge, and to any other circuits that are not disconnected by the OEM battery disconnect switch. The remainder ends up as heat. The Battery Minder also maintains the battery and powers the circuits that remain on, so the difference must result in heat from the circuits that are powered within the converter.
If I get a chance I will attempt to measure the AC current consumed by the PD9260 and by the Battery Minder.
The PD does go into a desulfation mode for 15 minutes every 21 hours. I believe this is simply boost mode for 15 minutes. The Battery Minder uses full-time automatic high frequency pulse desulfation. I have no idea how this affects the input current.
