How to build a Solar Laptop Charger for Under $100

Build a DIY Solar charger that supplies AC power from a solar panel for under $100. This is a small “micro grid” solar system that can solar charge a laptop, rechargeable tool batteries and much more. It uses 4 basic parts. A solar panel, a solar charge controller, a battery and a small AC inverter. This system is made small for solar portability. You can scale it up for your needs. Please leave suggestions and comments so other viewers can learn how to build a small off-grid solar system themselves. This is a great little weekend project.


Homemade 12V to 48V DC-DC Converter Battery Charger for Electric Scooter/Bike

This is a PC board I made so I can charge a 48V seal lead acid battery from any 12VDC source. This design is simple and uses an off-the-shelf audio crossover coil. It charges my battery from a 12V source that gets switched on once the sun goes down. In the morning my batteries are ready to go and it didn’t cost me anything. Energy from the sun. However I can use with and 12V source that can provide 2-3 amps of power. There is a special circuit that will stop the SMPS once the battery level low around 11 volts. Next day the sun comes up and charges the 12V battery.


How To DIY Solar Battery Charger – How To DIY Solar Battery Charger
The DIY Solar Charger | Popular Science
Jul 6, 2007 … The DIY Solar Charger. Keep your gadgets powered even when the grid … and build frames to hold the DC charger controller and the battery. …DIY: Solar Powered Battery Rechargers
In their latest catalog, several solar battery chargers are offered but one is particularly useful. The small Multi-volt Output Solar Panel (Cat. …Get Prepared Stuff – DIY Solar AA Battery Charger”
Most of the AA solar battery chargers available wouldn’t charge two AA 2000 mAh batteries in 4 days let alone 1 day of 4-5 hours of sun.Solar Battery Charging – Solar
Jul 30, 2007 … One of the simplest DIY solar projects is to make your own solar battery charger using a small Photovoltaic (PV) solar panel. …DIY Solar Battery Charger – Solar Energy How-to-Guide Directoy
DIY Solar Battery charger. Build your own solar battery charger for all of your electronic gadgets.Design Solar-Powered Computing Device – Hacked Gadgets – DIY Tech Blog
DIY projects describing how to build electronic projects. … Solar Battery Chargers – Cheap Solar Battery Chargers and Battery Charger ..
How To DIY Solar Battery Charger

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How to build a Desulfating Capacitive Battery Charger, Complete with Diagram Start to Finish

How to build a Capacitive Battery Charger, Complete with Diagram Start to Finish
How to build a Capacitive Battery Charger. For parts, or to purchase complete units, please call 414-852-7526

In this video I cover how you can build your own capacitive battery charger. These low cost chargers are universal, and can charge a battery bank from 0-170v in size. They also have the properties of Desulfation, and can either reverse, or prevent sulfation build up with regular use.

Build it Yourself Recommended Parts List!
12 Hr Timer:
Multimeter/Volt Meter:
Extension Cord:


Lead–acid Battery desulfation with capacitors no Epsom salt required. Cheap capacitive battery charger using a rectifier and capacitor, which is much more efficient for charging your worn out sulfated batteries. Also great for use as a forklift battery charger at a much much lower cost then purchasing a factory built one for $3,000+


My DIY 18650 Battery Charger

Today I’m going to show you how I’ve build a more complex 18650 battery charger. I got all the electronic components from I tested all the components before starting the project and they are all ok. The electronic parts cost 6.5 euros / battery.

Parts list:

Mini voltmeter:
10W 10ohm resistor:
Charger module board:
Battery Holder:
LED Light Assorted Kit:
300 resistors kit:
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How to make a Portable USB cell-phone charger

How to make a portable USB cell-phone charger for iPhone, iPod, MP3, MP4 with your own hands.
Using battery, wires, USB automobile charger you can make a portable charger for your cell-phone, iPod, MP3 player or any other gadget with your own hands easily.
Constructing it with your own hands we get a universal charger for a cell-phone, iPod, MP3, MP4…

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Welcome to my channel Roman UrsuHack where you will learn how to make hand made crafts, New Year crafts, presents, toys, Halloween scares. The main thing is that one can make it at home and with one’s own hands.
You are interested in handiwork, craft or you just have nothing to do, haven’t you? You have found the channel you really need. Here you can find lots of crafts, hand made items, and the main thing is that they all made of make-shifts and at the lowest cost!


How to Build an Electric Fence

How to build electric fence requires the use of an electric fencer to generate and send electric shock down the line. It is sometimes the only resort to teach a bad fence crawling animal to respect a fence.

The main thing to remember is the wire must not have a path to ground. If the wire does connect to the ground the electricity will then enter the ground and not continue down the line.

Most of the time it is only necessary to have one “hot” wire on a fence animals will learn very quickly and avoid the fence.

How to build electric fence is basic, you start by choosing the right post; wood posts can be used but are harder to keep the wire insulated. You can buy special posts that you can push in with your foot that have an insulated ring that the wire in held in.

Once the posts placed, simply string out the wire and attach to the posts. Use a wire tightener at the end to keep tension on the line. Drive a ground rod beside your electric fencer, one wire from the fencer goes to the ground rod and the other goes to the wire on the fence.

Most fencers allow you to either plug 110 current (regular household plug-in) or have 12 volt attachment. If you are in reach of electricity run a cord to plug in the fencer. If you are not near power you can use a 12 volt car battery and use solar power or other means to recharge the battery.

Electric fencing is economical and fast to build, I hope you learned the basics of how to build electric fence.

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A Simple Homemade Solar Power Generator – Build Cheap DIY Solar Powered Generators Plan

Use of renewable energy is now being harnessed by many people as calls for environmental protection and natural resources conservation are being the talk of the town. Consumers also are now finding ways and means not only to help mother nature but also save and spare money from the cost of daily living which is now becoming higher and higher. It is good to know on how to build cheap diy homemade solar powered generator.

Solar energy generator are basically like batteries which stores energy from the sun and keeps this power stocked up until usage for such is needed to run appliances or electrically run apparatuses.

Building a solar energy generator is initially costly and spending out a reasonable amount of cash is the only way to go. However return on investment is very good and feasible since the large initial amount is sheled out only once (during installation except of course for probably maintenance and repair), however use of such is electricity and power is on the daily basis. Savings must be huge as the increasing price of electricity is cut into half or much better zero as dependence on using the solar energy generator becomes a hundred percent. Return of investment may be attained in a couple of years or much shorter should price of electricity continue to soar.

To start making a solar energy generator purchase of solar panels is needed or building one's own can also be accomplished (choosing which option one must take will depend on the financial situation and the capacity of the person to make such from ordinary items). If buying of a solar panel is the chosen selection by the user it is suggested to buy a solar panel whose rating is 12 volts. Buy or acquire also a dc meter, an inverter (to convert dc to ac which is needed by some electronic devices) and deep cycle batteries (choose batteries which are dependable and are capable to handle long and continuous usage). Building a suitable battery box may also be required to keep the equipment from being destroyed and for curious people from getting hurt. Insulation is also proposed for purposes of safety, efficiency and quality output of the generated electricity.

To start off making a solar energy generator the meter as well as the input device is attached to the battery box and after this all these items are now part of the box, together with the DC meter and the inverter each are connected to the solar panel .

This type of solar generator is able to run small household appliances such as electrical fan, personal computer, radio and television however this is dependent on the quality of charge it receives from the sun's rays. The capacity of the solar energy generation is dependent on how much it was able to get and receive from the sun. Know you have a better idea on building a cheap diy homemade solar powered generator.