Reddit mentions of Newpowa 100 Watts 12 Volts Polycrystalline Solar Panel 100W 12V High Efficiency Module Rv Marine Boat Off Grid

I think so. Here's a much cheaper and simpler package after tax:

$200 in mounting hardware, glue/sealant and cables.

$3200 for a Goal Zero Yeti 3k that has inverter, charger, monitor, and all the other shit built right in to the box that holds a 3kwh battery (should be plenty) and is completely portable so you can use it wherever and safely keep it outside the bus when not in use. May easily charge it at home or on the road by plugging it into a wall if you drained it and wanna charge it quickly as well, and you can tuck it wherever you like on the bus rather than having a whole closet of components.

$370 for 4x of these wildly popular and over-performing 100w poly panels that punch above their weight.


That's less than $3800 for a package that is gonna charge far faster and allows you to take your power with you. Will also take up far less room in the bus and is extremely easy to "install". Properly bolt the 4 panels to the roof, run the power cable into the cabin, then plug that sucker right in to the yeti. Done. If you really need more power just get another yeti or even a battery expansion pack. Still way cheaper than your deal and will only take an afternoon for you to install, same time you'd spend fucking with your installation guys and driving the bus around.

But honestly, even that's a little rich, before I moved to a yeti for the portability (I use the yeti as a power source for my film equipment which goes everywhere and charge it with the bus panels), I just had an old inverter, a dirt cheap charge controller and about 400ah in lead acid batteries, all of which with 400w in panels cost me less than a thousand bucks installed and worked fine.

10 grand definitely seems too rich imo. I'd pay 5k tops for 4.8kwh of lithium batteries and 340w panels with charging and inverter, which is what you're getting. Mostly because with the yeti I get 3kwh, 400w of panels and a great portable system for less than 4, installed, after tax.

I want the cheapest, lightest, smallest, best way to get 3 amps at 12 volts 24 hours a day for 7 days straight at 47 degrees latitude in the summer in the US. How would I do it?

My thinking is 100watt panel at $150 I kind of like the flexible for my application, and lighter is better here:

https://www.amazon.com/DOKIO-Monocrystalline-Flexible-Lightweight-Irregular/dp/B074G1CN6N/ref=sr_1_10?s=lawn-garden&ie=UTF8&qid=1525191310&sr=1-10&keywords=100+watt+solar+panel


This could work, but the metal and glass and weight will be harder to mount: https://www.amazon.com/Newpowa-Polycrystalline-Efficiency-Module-Marine/dp/B00L6LZRXM/ref=sr_1_7?s=lawn-garden&ie=UTF8&qid=1525191310&sr=1-7&keywords=100+watt+solar+panel

A second panel, esp. flexible is not out of the question.

A mppt controller at $100 I'd like the controller to have the possiblity of a second panel.

Can I get away with one of these: https://www.amazon.com/dp/B071ZVD7R5/ref=sspa_dk_detail_1?psc=1&pd_rd_i=B071ZVD7R5&pd_rd_wg=TpZ8s&pd_rd_r=3NBQTEN5HQV42CS632RT&pd_rd_w=nuxLH

Or is something like this better: www.amazon.com/HQST-MPPT-Solar-Charge-Controller/dp/B01B28DBX6/ref=sr_1_11?s

How close can you run the controller to the limit, is a 20amp controller good for 200watts of panels, or is it better to not be so close and go to 30amp?


A 4x10 amp hour 12v in parallel, LiFeP04 bank at $500 (battery might be a bit small, but 3 amp constant might be a bit exaggerated and a dark period might be ok)

https://bmsbattery.com/ebike-battery/652-12v-10ah-38120s-lifepo4-battery-4-cells-ebike-battery-pack-battery.html 17lbs


SLA could work probably x2 www.amazon.com/HQST-MPPT-Solar-Charge-Controller/dp/B01B28DBX6/ref=sr_1_11?s Can you run the SLA as far down as a LiFEPO4? 3x the weight, but 1/3 the cost. How does the life compare?


Am I thinking wrong, or missing something significant other than wires and connectors?

Are their controller considerations if looking at LiFEPO4 vs. SLA?

https://www.amazon.com/Newpowa-Polycrystalline-Efficiency-Module-Marine/dp/B00L6LZRXM?psc=1&SubscriptionId=AKIAILSHYYTFIVPWUY6Q&tag=duckduckgo-iphone-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B00L6LZRXM
I have 4 of these that I can place out to power this bad boy: https://www.thereadystore.com/inergy-kodiak-battery. It’s expensive but it will last a life time and is super light. (20 lbs). Around Black Friday you can usually get all of it for about a grand, and never worry about power again.

For camping I use: https://www.amazon.com/25000mAh-Hiluckey-Compatible-Smartphones-Waterproof/dp/B07FMFGGNR/ref=mp_s_a_1_5?keywords=portable+solar+power&qid=1555207794&s=gateway&sr=8-5