Re: OT: Charging a Macbook in the woods

[Todd Cole]

I have never really researched it but most inverters out put a square wave
vs AC uses a sine wave. As a 30 year RV owner and one that uses a good
inverter/laptop in my car. I have never had a issue.
I do make sure I have a good battery as a filter and a surge protector
might be a good idea. 5 years ago I camped in the RV for two months using
the generator daily to charge phones and computers
and used my phone to tether with no issue. my wife used her CPAP on hot
nights with the Generator. I assume cheap inverters/ Generators could be a
issue but with 0 issues I would say Go for it and enjoy
tech in the woods. Todd

On Tue, Jul 10, 2018 at 6:08 AM, Ted Gould  wrote:

> On Jul 10 2018, at 12:30 am, Victor Odhner  wrote:
>
> My wife has a tablet (Sansung SM-T530NU Nook) that can be charged in my
> truck. But it rejects every attempt to load from the Macbook via USB cable
> or BlueTooth — the devices see each other, but can’t quite get a connection.
> Only remaining possibility seems to be a micro SD chip.
>
>
> Many of the tablets do special negotiation on power, and the chargers and
> others expect that. I'd recommend having a USB condom in general, but in
> this case it'd probably also solve the negotiation problem. These are the
> ones I use.
>
> https://smile.amazon.com/PortaPow-3rd-Data-Blocker-Pack/dp/B00T0DW3F8/
> 
>
> Also there are many extended charge batteries provided by Anker which may
> work for your needs. I was looking at buying this one for my Dad who has a
> CPAP machine and would like to be able to camp. I imagine a smaller one
> would work depending on what you want.
>
> https://www.anker.com/deals/powerhouse2
> 
> Ted
> [image: Open Tracking]
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-- 
Todd Cole
Ubuntu Arizona Team
2928 W El Caminito
Phoenix AZ  85051-3957
to...@azloco.com
602-677-9402
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Re: OT: Charging a Macbook in the woods

[Ted Gould]

On Jul 10 2018, at 12:30 am, Victor Odhner  wrote:
> My wife has a tablet (Sansung SM-T530NU Nook) that can be charged in my 
> truck. But it rejects every attempt to load from the Macbook via USB cable or 
> BlueTooth — the devices see each other, but can’t quite get a connection.
> Only remaining possibility seems to be a micro SD chip.
>
>

Many of the tablets do special negotiation on power, and the chargers and 
others expect that. I'd recommend having a USB condom in general, but in this 
case it'd probably also solve the negotiation problem. These are the ones I use.
https://smile.amazon.com/PortaPow-3rd-Data-Blocker-Pack/dp/B00T0DW3F8/ 
(https://link.getmailspring.com/link/1531227692.local-5b3fbd6e-e96b-v1.2.2-96fb3...@getmailspring.com/0?redirect=https%3A%2F%2Fsmile.amazon.com%2FPortaPow-3rd-Data-Blocker-Pack%2Fdp%2FB00T0DW3F8%2F=cGx1Zy1kaXNjdXNzQGxpc3RzLnBoeGxpbnV4Lm9yZw%3D%3D)
Also there are many extended charge batteries provided by Anker which may work 
for your needs. I was looking at buying this one for my Dad who has a CPAP 
machine and would like to be able to camp. I imagine a smaller one would work 
depending on what you want.
https://www.anker.com/deals/powerhouse2 
(https://link.getmailspring.com/link/1531227692.local-5b3fbd6e-e96b-v1.2.2-96fb3...@getmailspring.com/1?redirect=https%3A%2F%2Fwww.anker.com%2Fdeals%2Fpowerhouse2=cGx1Zy1kaXNjdXNzQGxpc3RzLnBoeGxpbnV4Lm9yZw%3D%3D)
Ted
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OT: Charging a Macbook in the woods

[Victor Odhner]

I researched power inverters, figuring that I can charge my Macbook while 
camping. It turns out, as far as I can tell from the user reviews, that the 
affordable inverters (even some less affordable) don’t satisfy a PC’s AC 
quality requirements. There are happy customers, but the reports of failure for 
PC use are about 20%. Someone even added a UPS to clean up the power including 
the frequency — so that’s DC to AC to Battery to clean AC.

My purpose is some evening entertainment for teens at a camp, miles off the 
grid. They have a generator there, but I hesitate to trust it with my PC.

Some newer PCs charge on 5v, but I can’t afford newer.

My wife has a tablet (Sansung SM-T530NU Nook) that can be charged in my truck. 
But it rejects every attempt to load from the Macbook via USB cable or 
BlueTooth — the devices see each other, but can’t quite get a connection.
Only remaining possibility seems to be a micro SD chip.

Maybe the elements are conspiring to focus me on my 12-string guitar, and “the 
elements” have also watered the forest so we’ll probably get to light a fire. 
But the kids do get itchy being dragged away from their current tracks.


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