Try heated seed mats. They seem to work pretty well if you have an available power source nearby. https://www.amazon.com/MT10004-Waterproof-Certified-Hydroponic-Germination/dp/B0044U4F5I
On Fri, May 17, 2019 at 8:26 AM jay <jay.pe...@gmail.com> wrote: > HI All, > > I”m wondering if anyone has suggestions about how to charge a Lithium > battery in RV or in this case Polarius in sub zero temps. > > Are there batteries that have heaters built in, or is it still a custom > design issue to build a heating system? > ( insulation and heaters) > > Thanks, > > jay > > peltz power > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > -- Loren Ortiz Technical PV Design Specialist - Commercial/Residential/Off-Grid lo...@cal-solar.com californiasolarco.com *Main: 530-274-3671 ext: 311 * *Fax: 530-274-7518* -- <https://californiasolarco.com/referral_form/> *Showroom located at: 149 E Main St. Grass Valley, CA 95945*
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