Exactly right, Dave. I should have thought to mention this.
73, Jim K9YC On 7/1/2013 6:27 AM, Dave B wrote:
Please remember, that battery makers specify the AH figure, for a typical C/20 rate, (1/20th the nominal AH current value.) Some may quote it at C/10, check the data sheets for the battery of interest, they will often have example of typical discharge voltage curves, for various discharge rates too. That can be*Very* enlightening! Without going into specifics, 20A from a 7AH battery may on the face of it give you some 20 minutes operating (7 / 20 * 60) but in practice you'd be lucky to get even near half that of actual "Practical Use" of your amp'. Probably no more than 5 mins TX time at most before it all starts to collapse.
______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
