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Stardate: 20190802.1154
Location: Passenger in a Toyota SUV en route to Lake Tahoe
Input Device: Gemini PDA
Audio: some Olivia Newton John song
Visual: Freeway traffic and scenery
Energy: 75%
Mental: 65%
Emotional: Cramped, confined.
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The fam and I are on the way to Lake Tahoe today for the weekend.
I don't have to drive so I get to chill.
Lately, I have been reviewing my disaster prep supplies and
procedures. I brought out my solar generator rig that I built
several years ago for camping (I use a CPAP machine) and have added
to my disaster supplies. Unfortunately, the panels are not as
effective as they once were. The panels I have are the flexible type
that are light weight and you can roll up, but have been showing
their age.
There are 3 panels, 2 of which are small 5 watt panels and the
other being 20 watts. I connected these together and my meter only
registered between 100mAh and 300mAh, with the voltage around 16v
in direct sunlight. So I was only getting between 1.6 to 4.8 watts,
not the 30 watts that they were originally rated at.
The original batteries I used were 2 12v, 12Ah lead acid batteries
that I got used and wired in parallel for a maximum capacity
of 24Ah, or 288 watt hours...if the batteries were brand new. The
setup didn't last that long so I decided to use smaller 12 volt
batteries.
I was able to fit the whole rig in a plastic tool box, panels,
batteries, controller, meters, etc. I took it on a few trips, but
it wasn't too practical and the charging setup wasn't a good one. I
was able to learn quite a bit about solar charging and electricity.
With this recent test, I have been given the opportunity to revisit
this project. I thought about rebuilding the setup and finding
new panels. Then I thought about it some more and decided to keep
the setup, but replace the tool box since it is a bit banged up and
use this rig for maintaining batteries in my garage. Let's see how
that works out.
For the disaster/camping kit, I picked up a manufactured kit that is
much more efficient and lighter than the previous setup. The panels
are 50 watts that fold up like a brief case and the battery is 150
watt hours. That might work better.
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