Conservative. Idaho. Software engineer. Historian. Trying to prevent Idiocracy from becoming a documentary.
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"And we know that all things work together for good to them that love God, to them who are the called according to his purpose." -- Rom. 8:28
There are lots listed on Amazon but they never directly say they operate on batteries. I would expect something that worked of a car battery would allow you to boil water but not much less.
If all you want is to heat a cup of water, something like this will last longest https://www.amazon.com/Fdit-Portable-Immersion-Element-Electric/dp/B083S6DCKX/ref=sr_1_2?crid=2C9TR4GQ8HEUW&keywords=12%2Bv%2Bcoffee%2Bheater&qid=1702568777&sprefix=12v%2Bcoffee%2Bheater%2Caps%2C119&sr=8-2&th=1
Check the JC Whitney Catalog, if they are still in business. I remember once, a number of 12 volt cooking devices that had the standard automobile cigarette lighter type plug.
The energy density of batteries is really low.
ReplyDeleteA car battery is probably under 1,500 watt-hours.
A single 16-oz propane cylinder is equivalent to 3,000 watt-hours (assuming 47% combustion efficiency).
1800 watts from a battery?
ReplyDeleteIf all you want is to heat a cup of water, something like this will last longest https://www.amazon.com/Fdit-Portable-Immersion-Element-Electric/dp/B083S6DCKX/ref=sr_1_2?crid=2C9TR4GQ8HEUW&keywords=12%2Bv%2Bcoffee%2Bheater&qid=1702568777&sprefix=12v%2Bcoffee%2Bheater%2Caps%2C119&sr=8-2&th=1
I would expect something that worked OFF a car battery would allow you to boil water but not much ELSE.
ReplyDeleteBetter off with a butane hotplate.
https://www.amazon.com/GS-3000-Portable-Stove-Carrying-Approved/dp/B08429MHH4/ref=sr_1_6?crid=QE9FQ0V8G5VK
Check the JC Whitney Catalog, if they are still in business. I remember once, a number of 12 volt cooking devices that had the standard automobile cigarette lighter type plug.
ReplyDelete