On 10/13/2024 11:35 AM, Jim Wilkins wrote:

Harbor Freight and Home Depot offers a Jackery 400, which doesn't appear
on Jackery's website. While I can assemble a comparable portable system
it would consist of heavy objects connected by cords which is risky in
mobile use. Does anyone have experience with it, particularly when
charged from solar panels?
jsw

I'm not sure I buy into all the hype. 1st off Lithium Iron batteries
are much safer if slightly less power dense than Lithium Ion batteries.
A modicum of common sense should keep you more than safe. I am
currently running a 36V LiFEPo for a trolling motor.

If you want to lean into all of that Will Prouse has a fairly extensive
library of videos on YouTube tearing into various batteries and battery assembly. I think he is more focused on home power banks and server
rack batteries, but there is a tremendous amount of practical knowledge
there. I don't recall if Will has torn into the portable power pack
market to the same degree, but its worth a look see.

With most of these the cells are the same or similar (more powerful
cells are becoming common). The difference are in assembly quality, the
BMS, and the quality of your inverter.


--
Bob La Londe
CNC Molds N Stuff

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On 10/14/2024 12:49 PM, Jim Wilkins wrote:

Thanks. Will's reviews convinced me to buy 2 of the the LiTime Mini 12V 100Ah, LiFePO4s which fit in Group 24 boxes although they are slightly
taller than lead-acids.

Same here except 36 volt for the boat. I wish they had a 12V with
cranking amps high enough for a starter motor. I've also been thinking
about getting a couple high cap 12s for the travel trailer. Highest
peak loads would be the brakes in an emergency I reckon. That
continuous capacity would be nice to have.


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Bob La Londe
CNC Molds N Stuff

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On Fri, 18 Oct 2024 09:09:40 -0400
"Jim Wilkins" <muratlanne@gmail.com> wrote:

"Jim Wilkins" wrote in message news:vell9l$1mpr3$1@dont-email.me...

Well, I found enough tech specs to believe I can use the Jackery 290, and >ordered one from Best Buy for $159.99 with a soon-to-expire coupon. I've >adapted jump starters to more or less the same functionality but their cheap >construction doesn't take well to much modification with heavy parts and I >don't want smoke and fire in the car while I'm driving.

Best of luck with this👍

I read reviews, looked them over a bit a couple years ago when I
noticed HF had them. Found it interesting how many people were using it
to run their CPAP machines while camping or off grid...

--
Leon Fisk
Grand Rapids MI

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On Fri, 18 Oct 2024 13:04:44 -0400
"Jim Wilkins" <muratlanne@gmail.com> wrote:

An example of how I could use portable AC was at a recent flea market where >I found a Tek TDS3054 4 channel 500MHz DSO scope for sale cheap, with the >warning that some buttons don't work well/at all and he thought it would be >too difficult to take apart for cleaning. He had AC power but I couldn't see >much in bright sunlight, or take it into shade. Anyway, he ended up asking >$40 "for parts".

<snip>

It would cost you more than $40 nowadays going out to dinner and
catching a movie... I look at it as that $40 price for "parts" will keep
my brain engaged and a reason to get out of bed for several days if
nothing else. Well worth the price in my view even if it ends up being
just parts of no particular use😉

--
Leon Fisk
Grand Rapids MI

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On 10/18/2024 11:28 AM, Leon Fisk wrote:

On Fri, 18 Oct 2024 13:04:44 -0400
"Jim Wilkins" <muratlanne@gmail.com> wrote:

An example of how I could use portable AC was at a recent flea market where >> I found a Tek TDS3054 4 channel 500MHz DSO scope for sale cheap, with the
warning that some buttons don't work well/at all and he thought it would be >> too difficult to take apart for cleaning. He had AC power but I couldn't see >> much in bright sunlight, or take it into shade. Anyway, he ended up asking >> $40 "for parts".

<snip>

It would cost you more than $40 nowadays going out to dinner and
catching a movie... I look at it as that $40 price for "parts" will keep
my brain engaged and a reason to get out of bed for several days if
nothing else. Well worth the price in my view even if it ends up being
just parts of no particular use😉

Heck its more than 40 bucks if you don't go to dinner, and just get
pocorn and sodas.

--
Bob La Londe
CNC Molds N Stuff

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On Fri, 18 Oct 2024 16:02:02 -0400
"Jim Wilkins" <muratlanne@gmail.com> wrote:

<snip>

What good ones go for:
https://www.ebay.com/itm/175220060375

Looking at Completed items ~$700 seems to be the sweet spot they
actually sell for.

Still think your $40 was an excellent brain stimulation purchase if
nothing else👍😉

--
Leon Fisk
Grand Rapids MI

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On Fri, 18 Oct 2024 21:54:44 -0400, "Jim Wilkins"
<muratlanne@gmail.com> wrote:

"Leon Fisk" wrote in message news:veuk41$3e1r3$2@dont-email.me...

On Fri, 18 Oct 2024 16:02:02 -0400
"Jim Wilkins" <muratlanne@gmail.com> wrote:

<snip>

What good ones go for:
https://www.ebay.com/itm/175220060375

Looking at Completed items ~$700 seems to be the sweet spot they
actually sell for.

Still think your $40 was an excellent brain stimulation purchase if
nothing else??

Like my $3 "some kind of electrical meter" (Fluke 77) around twenty
years ago!

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