Mike, The battery has a BMS board, just doesn't have the low temp protection sensor. Not sure of your math. mine says $400 - 50 Ah LiFePO4 Battery $130 - MPPT controller $160 - 2 100W Mono Crystalline Panels (rather than 1 200W for transportability) $80 - Grid-tied charger I already have a good inverter, the cabling I need, the power poles I need, and the auto switch. I probably won't even use the inverter, since I have a 12V charger for my laptop, so why take the RFI of an inverter for a radio application? That will get me at least 6 hours of IC-7100 time on a POTA activation, even if the sun isn't out, and more than enough to last 2 or 3 days w/o sun on an ARES activation. If there is any emergency power or decent sun, I am nearly unlimited.
Total $770, the equivalent Solar Generator is at least $1100, $1700 if you go Battle Born. Ron KE4DRF On Sat, Sep 4, 2021 at 5:09 PM Mike Lambert via BVARC <[email protected]> wrote: > Hi Ron, > > By the time you add a charge controller and BMS to that battery you might > as well buy a solar generator (then you get an inverter too). > > Mike > KI5MIK > On 9/4/2021 3:34 PM, Ron Bosch via BVARC wrote: > > With thanks to Gus, K5GMB, I recommend Will Prowse's youtube channel to > inform y'all on solar power, as well as batteries. You can get a 50Ah > LiFePO4 (Ampere Time or Eco Worthy) Chinese battery for <$300 on Ebay. > They review very well for the price, with the caveat that they do not come > with low temp circuits on the BMS, so you have to have good low temp > protection on your charge controller to make sure you protect the cells. I > also recommend spending less on the batteries and more on the charge > controller. I plan on buying a Victron Blue Solar, as all of my cruising > friends swear by them. > > Ron > KE4DRF > > On Sat, Sep 4, 2021 at 12:21 PM KJ Anderson via BVARC <[email protected]> > wrote: > >> I'd be interested in picking up a cheap battery as well. >> >> ------------------------------------------------- >> KJ Anderson >> 253-380-2636 >> www.linkedin.com/in/scrumnerd >> >> -----Original Message----- >> From: BVARC <[email protected]> On Behalf Of Westley Clavey via >> BVARC >> Sent: Saturday, September 4, 2021 10:04 AM >> To: BVARC <[email protected]> >> Cc: Westley Clavey <[email protected]> >> Subject: [BVARC] lithium chemistry batteries for emergency power >> >> I subscribe to several listservers, but I believe the listing I saw was >> here on BVARC about someone putting together a group purchase of batteries >> that can be used to create emergency or field power supplies. My far too >> efficient mailbox tool clears out messages after a month, so if it was here >> I can no longer find the listing. If someone has any information on this, >> could you send directly to me? ...no need to blast it all out again. >> Thanks. >> >> [email protected] >> >> -- >> Wes Clavey, W5WMC >> >> >> ________________________________________________ >> Brazos Valley Amateur Radio Club >> >> BVARC mailing list >> [email protected] >> >> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmail.bvarc.org%2Fmailman%2Flistinfo%2Fbvarc_bvarc.org&data=04%7C01%7C%7Ce662324345aa4c18e4f608d96fb53bb8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637663646445284969%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=kJT8o7qsF77hjHFmjUcEu%2FdH7quSRWXGfCfQtSpCQXI%3D&reserved=0 >> Publicly available archives are available here: >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mail-archive.com%2Fbvarc%40bvarc.org%2F&data=04%7C01%7C%7Ce662324345aa4c18e4f608d96fb53bb8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637663646445284969%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=CrJcu%2FCUgWZkFGc%2BLSHli%2BLdMWp5dILoQn9UHASOaes%3D&reserved=0 >> >> ________________________________________________ >> Brazos Valley Amateur Radio Club >> >> BVARC mailing list >> [email protected] >> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org >> Publicly available archives are available here: >> https://www.mail-archive.com/[email protected]/ >> > > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing > [email protected]http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > Publicly available archives are available here: > https://www.mail-archive.com/[email protected]/ > > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing list > [email protected] > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > Publicly available archives are available here: > https://www.mail-archive.com/[email protected]/ >
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