If you upgrade your panels to 24V, trying to ID the options you would have for keeping 12v consumers if you can't find 24 consumers (like light bubs or USB chargers or range hood). ------------- Max Charleston SC
On Thu, Feb 20, 2020 at 11:22 AM Curt Raymond <curtlud...@yahoo.com> wrote: > What are we trying to gain here? 24v to 12v stepdown converters are pretty > common but my original goal in staying 12v was efficiency. Anything that > removes that efficiency is a no-go. > > Curt > > Sent from Yahoo Mail on Android > <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature> > > On Thu, Feb 20, 2020 at 11:00 AM, Meade Dillon > <dillonm...@gmail.com> wrote: > I wonder how hard it would be to rig up a motor / generator to step-down > from 24 vdc to12 vdc. Need a 24vdc motor, turning about 1800 or 2400 RPM, > probably you'd want at least 5 HP or so. Couple that directly to an > alternator from a car, and boom you've got 13.5vdc. > ------------- > Max > Charleston SC > > > On Thu, Feb 20, 2020 at 9:59 AM Curt Raymond <curtlud...@yahoo.com> wrote: > > Hmm, I never thought of running the lights in series. It'd take some > thinking to figure out the runs though, you'd need to series and then > parallel to keep 12v. Rarely do we have just 2 lights on a run. > > The bulk of the amps goes to the range hood which, for now, is 110v. There > are 12v options which I'm investigating. The one we have now is dying > anyway. > > The bulk of power use over time, especially during deer camp in November, > is charging phones and tablets. 6 guys each with a phone and a tablet > requires a lot of USB ports if not a ton of power... > > We probably use 30ah @12v a day. Best charging I've ever see is 4.5a but > thats at the peak around noon. I'm thinking one other thing we should do is > split the two banks of panels onto 2 charge controllers, that way if one > pair of panels is shaded they won't negatively effect the other. > > -Curt > > On Thursday, February 20, 2020, 9:51:53 AM EST, Meade Dillon via Mercedes < > mercedes@okiebenz.com> wrote: > > > Curt - what are your electric power consumers at your camp? The 12v light > bulbs can simply be placed in series on a 24v DC system, so each bulb only > sees 12vdc. I think you can also efficiently use 12v batteries to store / > provide power on a 24v system, but that is a little more tricky. What else > do you have? > ------------- > Max > Charleston SC > > > On Wed, Feb 19, 2020 at 2:18 PM Curt Raymond via Mercedes < > mercedes@okiebenz.com> wrote: > > > Other than stepdown transformers which have the same dang issue as the > > 110v inverter. > > I've been debating going 24v with our system, bigger panels are almost > all > > 24v and much cheaper per-watt than the 12v panels we use. In the end I've > > decided that our best course is to stay 12v. This spring we'll add 1 more > > 100w panel bringing us to a total of 4 and replace our current cobbled > > together 180ah battery array (2x 35ah 1x110ah) with 2x 110ah batteries > for > > 220ah capacity. I think the mix of little and big, new and old in the > > current system is costing us usable capacity. > > > > > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
