Large stationary C.O. battery ratings are 80% dod. Sent from my iPhone
> On Nov 7, 2020, at 8:03 PM, Robert <[email protected]> wrote: > > But you want to only take a lead battery to 1/2 that to avoid decreasing > the longevity of them, so double the battery size and, if the batteries are > going to be outside in the winter you will lose performace so double it again. > > Lithium, I have learned that yes you can discharge them fully but you only > want to charge them to 80% to get maximum life. So you only need to go 120% > of your battery calculation for lithium... > > > > On 11/7/20 1:40 PM, [email protected] wrote: >> 30 watts * 24 *14 = approx 10 kWh. So you need a 10 kWh battery. 10 kWh/48 >> = 210 Ah 48 volt battery. >> >> Now, I have lotsa experience at my latitude and weather. I will take a stab >> at your situation. If you can easily get a generator to the site it makes a >> huge difference. >> >> I would say you need a minimum of 300 watts of panel which is not much. You >> can get one single panel of that size. Depending on the type of charge >> controller you use, you will probably want 2 or 3 panels to get the voltage >> up in the 60-100 volt range. >> >> So take a look at the MMPV of the panels you choose and add them up in >> series. Take a look at the max input voltage of your charge controller. >> Try to get the series voltage of the panels close to that max input voltage >> if you can. >> >> I promise it will work if you do 600 watts of panel, that would be at my >> latitude, middle of winter with snow and storms. 20X the load is my rule of >> thumb here for off grid. 20X the load and 2 weeks of battery autonomy saves >> you from expensive helicopter rides in the middle of winter. So that is why >> I am recommending 10X for you. I think Bill once said he can get by with >> 10X down where he lives. >> >> From: Gino A. Villarini >> Sent: Saturday, November 7, 2020 12:13 PM >> To: AnimalFarm Microwave Users Group >> Subject: [AFMUG] Solar calculator? >> >> Anyone with a good online calculator? >> >> Or can you assits with: >> >> What size of panel and batteries would I need for a 48v 30W setup to run >> 24/7 for at least 14 days without power? >> Gino Villarini >> Founder/President >> @gvillarini >> t: 787.273.4143 Ext. 204 >> >> www.aeronetpr.com | Metro Office Park #18 Suite 304 Guaynabo, PR 00968 >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com
-- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
