I use one of these power supplies with a battery backup module installed (Model: SEC-1223BBM). I have a deep cycle battery attached to it.http://www.samlexamerica.com/products/ProductDetail.aspx?pid=516The hot-switches to battery is very nice when power fails. Also if you happen to draw more than 25A it uses the battery for the difference from up to 35A. It charges the battery at 5A with normal power.Tom - wa4ta
> Date: Mon, 22 Dec 2014 13:51:52 -0600 > From: rpfj...@embarqmail.com > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] K3 13.8 VDC power > > Wow, thanks to all for the greatly informative answers. I gleaned many > good ideas from them. > > This is my concern; I am interested in protecting my K3 from damage by > not being shut down properly should a power interruption occur while the > K3 is operating. For this design, I'm thinking about a worst case > scenario; in transmit mode at 100 watts/20 amps, plus accessories on. > > I am concerned about Hydrogen gas while charging a lead-acid battery > here in the furnace room. Since I don't need to operate by battery > power, I'd like to know your thoughts about if a Gel-Cel battery of a 9 > amp variety would handle the 20 amp load until I could go to receive > mode and properly shut down? > I haven't had any experience drawing that much amperage from a gel-cel > momentarily. I don't know if the load voltage would be adequate to keep > the K3 alive. I'd need to test it using an older style radio. I'm > hoping someone has had experience related to this. > > Thanks in advance for comments, > > Dick, n0ce > > > On 12/22/2014 1:31 AM, Richard Fjeld wrote: > > Is anyone floating a battery across their power distribution? > > > > Dick, n0ce > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wa...@hotmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
