Mart Hale

I love this meta search,  took some time to learn to configure this, but very powerful..

The big road block with the lithium cells you are looking  use is lithium cells of this chemistry cannot be charged at cold temps.          Most BMS have temp protection in them for when it is cold they will shut off charge to the batteries to prevent damage.

To get around this some battery packs come with built in heaters that  will heat the batteries to a level that charging can start.

There are chemistries of Lithium batteries out there that can deal with the cold, but normally they are more expensive as I recall.

I would recommend  youtube channel  "Will Prowse"    as he tests batteries,  BMS  to see if they deliver what the label says they do,  many times they do not.

I also recommend looking at a site called "battery hookup"    they sell used batteries  at good prices.      David Poz on youtube has done conversions of golf carts with different types of  batteries.

Those are some places I would recommend checking out.

Found this amusing.

John F Dean wrote:Hi Mart,

In the same conversation I had with the gentleman from MN, he told me his hunting technique.  ….and I find it interesting that he sees hunting in terms of days.  Anyway, he would plant himself deep into dense woods with a few sandwiches and a few thermos’s of coffee and wait until the pressure from the other hunters drove the deer to him. This man was in his 80’s and knew how to get  food.  

You can tell why he made it to the age he did ;-)

M Ljin wrote:

Jay Angler wrote: This is why I am interested in marginal/uncommon food plants - just as many people don't know how to hunt (including myself) many people don't know what a potato leaf looks like. They're even less likely to recognize one that's not in a "vegetable patch".  Let's just say that I like the concept of "stealth food". Unfortunately, until those hunters reduce the deer population, many things that I know are edible, and average people likely don't, the deer do! They are totally thieves!

The problem is the solution!

This is a prudent way to think...

Hunting for survival can be done, but normally when things go sideways  everyone trys to go down the same path  at the same time.

Thus   hunting locations can be flooded with people who are not experience hunters   who are competing with you for those resources.

The approach I like to do is to go a different path,      raise your own meat at home and avoid the competition of hunting.      Even better have  of food stored for long term storage so you can wait out  dealing with those who are in panic mode to get supplies.

My first choice is canned meat or protein of your choice  beans, spirulina  on the shelf   stored for these emergencies.    This saves lots of stress as you will have the food to take you thru the event.

Next to that is long term raising your own protein    aquaponics,   chickens,  quail  on your own property.        As Viking preparedness likes to say your greatest danger after an event is  "people acting badly"      so if you can have your own food source you are far ahead of the game of those who hunt, unless you have a remote area that no one will be fighting you for.

Options,   give yourself more options,    I like to eat meat once a week, and the rest of the week I do variations on oatmeal, rice, beans which are easy to store.          

We are not all the same we have different diets, and skills.        I have built an engine that runs off charcoal, but I don't use it because gas is too cheap for me to compete with my time making charcoal,   but I have the skill just in case.

Luther Krueger wrote:I've been cooking with pure unmediated sunlight for 20+ years and would love to hear how the permaculture community is doing likewise  I have a non-monetized video series focused entirely on the many dedicated solar cooks who use, design, and promote solar cookers. Not selling any product, just the idea! youtube.com/@SolarCookingMuseum

Nancy Reading wrote:That's pretty impressive!

So the rocket fired dehydrator was just fired once at the beginning?

This ran over multiple days from what I understand,   I have the same question, did they start a fire once at the start of the day for the test?      

Another element that would be interesting to have is the weight of the wood at the start compared to the end.