I have 2 batterys. Because I fly with a injection system and no mechenical fuel pump. (2 electtrical) I am very happy with the system. Never run a empty battery. see the link below, I made 2 boxes for fire prevetion, and a temp indication that gives a alarm above 40 degree. http://www.masttotaalconcept.nl/kr2/styled-28/index.html stef
> Op 17-05-2024 08:44 CEST schreef Luis Claudio via KRnet > <krnet@list.krnet.org>: > > > > I agree John. It sure helps to know how to calculate battery needs... so when > I apply the engine cubic centimeters to cubic inch calculator it will return > the engine displacement value, such that: V = 4 * 250 * π * 50² / 4 = > 1,963,495 mm³ = 119.82 Cu. In. > > So, using Larry's rule of thumb as 1 cu. in. = 1 CCA then X 119.82 = 120 CCA > required plus 20% reserve = 144 CCA. Nice. > > Luis > On Thursday, May 16, 2024 at 06:14:28 PM CDT, <k...@bouyea.net> wrote: > > > Larry, This is a really good post. Thank you for sharing your knowledge on > this topic. > John Bouyea / OR81/ Hillsboro, OR > N133RM KR-2S – imported, fixed & flying > www.bouyea.net/N133RM > > -----Original Message----- > Finally, on the batteries we use in the airplane, car, portable radio, > GPS, cell phones, etc., we want the hottest (most powerful) battery > available. But, there is no reason to go overboard , pay more money > than necessary, if you have unnecessary capacity that you don't use. > ... snip ... > > Understanding how batteries and cells are rated lets you decide what > your needs are and spend accordingly. With you buns on the seat at 5000 > feet, more is almost always better. > Larry Flesner > > -- > KRnet mailing list > KRnet@list.krnet.org mailto:KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet > -- > KRnet mailing list > KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet > Steph and his dad are building the KR-2S see http://www.masttotaalconcept.nl/kr2 http://www.masttotaalconcept.nl/kr2
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