On Fri, Aug 7, 2009 at 11:32 AM, Ray Andrews, K9DUR<[email protected]> wrote:
> The proper float voltage for a typical automotive battery is slightly > different than that for a marine/deep-cycle battery. And Gel-Cell batteries use a still-different float voltage. BTW, gel-cells are the only batteries that may be charged and floated at the same voltage. That means that if you want to connect a battery across a power supply it should be a gel-cell. Float voltage for flooded cell batteries is much lower than the charge voltage. > A couple of people have asked about damaging the power supply if AC power is > lost with the battery still connected. The answer is YES. The regulator > circuit used in the Astron linear power supplies (and most other brands as > well) will be damaged if power is turned off with a battery connected to the > output. I have heard that as well but I have done it and never experienced a problem. My Astron supply charging a battery and then running the computer through an inverter was my first UPS and that ran for many years. In fact, I was just doing that until a few days ago. I only recently finished rewiring the PV panel and charge controller so I just threw the Astron supply across the gel-cell to keep it charged. We operated from after Field Day until three days ago this way. Since then we have had two short power outages as well. No problems with the Astron supply. -- 73 de Brian, WB6RQN/J79BPL _______________________________________________ FlexRadio Systems Mailing List [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to [email protected]
