$620 Milk Crate Solar Power System: 640Wh LiFePO4, 500W Inverter, 260W Solar/AC Input, 8x USB

Sponsored Parts list (video materials not sponsored):
Inverter $60
Battery $359
Ac charger $35
Charge controller $89
Usb $25
Crate $7.99 Bought this at target
Fuse block $9
Double sided tape $17
Cable ties $2.20 walmart
Connectors $3.97 walmart
Tools $4.97 walmart
10 gauge wire $10 walmart
Extension cord $2 walmart

200W rich solar panel:

Part 2 update:

Safety Update: the solar panel leads are in parallel with power supply output. This works great (panel acts as a diode and psu is current limited) unless the panel VOC exceeds max power supply output. Components on filtering output circuit of PSU (such as capacitors) can blow if you exceed this limit. Most sub 260W panels will not exceed 48V… but if you do, you should connect power supply direct to battery and set it to 14.4V.

Does off-grid solar confuse you? Check out my DIY friendly website for solar system blueprints, recommended components and much more!

Join our DIY solar community! #1 largest solar forum on the internet for beginners and professionals alike:

Check out my international best-selling 12V off-grid solar book (Amazon affiliate link):

Coupon codes and solar distributors I recommend:

-Rich Solar: No coupon code needed here because they have the lowest prices around. High quality solar panels and solar generators:

-Renogy.com Megasite! They have everything you need to build any size system (
10% off code: WillProwse

-BigBattery.com (
10% off code: diysolar

-Batteryhookup.com (
10% off code: diysolar

-Watts 24/7: Best deals on all-in-one solar power systems, with customer support and distribution here in the USA:

My solar equipment recommendations (Constantly updated unlike my videos! Check here first):

Solar Panels:

Beginner Friendly Lithium Batteries:

DIY LiFePO4 Batteries:

LiFePO4 Battery Cells:



LiFePO4 Battery Chargers:

Solar Charge Controllers:

Solar Panel Mounting Guide:


Battery Monitors:

Favorite Tools:

12V fridges:


Contact Information:
I am NOT available for personal solar system consult! No exceptions! All emails asking me to design or help with building your system will be deleted. If you are a business or youtuber and wish to contact me, this is my direct email: williamprowsediysolar@gmail.com

Join the forum at if you wish to hang out with myself and others and talk about solar

Affiliate information and disclaimers:
Every video includes some form of paid promotion or sponsorship. Links in description are affiliate links. My videos are for educational purpose only. Information is subject to change/update at anytime. Electricity is DANGEROUS and can kill. Be smart and use common sense 🙂

DIY Solar Power with Will Prowse is a participant in the Amazon Services LLC Associates Program,
An affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com
FTC Disclosure Statement:
Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these.


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