Solar Chargers

Friday, July 2, 2010

Solar Chargers Purchase Tips

Friday, July 2, 2010

Lenmar PPUS20 PowerPort Solar Charger & External Portable Lithium Ion Battery for Cell Phone/iPhone 3G/MP3/USB Charging Cable/Device Tip AdaptersSilver Mini SunPlug Solar Charger for cell phones. 0.33 watt solar panel, 1350 mAh rechargable battery.Rechargeable SOLAR POWER Boost for iPod, iPhone 3G(S), DROID , ALL BlackBerry's, Kindle 2 / DX - Refuel 3 Ways AC, USB and SOLAR

Solar panels:
Currently the market is divided into amorphous silicon solar cells and crystal silicon. Which can be divided into poly-Si and silicon. Material from the photoelectric conversion efficiency of three terms are: silicon (up to 17%)> poly (12 ~ 15%)> amorphous silicon (5%). However, crystalline silicon (silicon and polysilicon) is basically in low light will not have currents, amorphous silicon-based low-light good (in low light energy of the already small). Therefore, comprehensive view, it is appropriate to single crystal silicon or polycrystalline silicon for solar cell materials.

Next we want to focus the power of solar panels is, in general, solar panels with solar power is proportional to chip area (the area of solar cell chip is not exactly the same area of solar panel package, as some solar While panels, but solar energy gap is very wide array chip, this is not necessarily high-power solar panels. such as the VSC-03 Although our solar panels is not, but the chip closely arranged, in the relatively small size also realized 0.75w power). In general, solar panel power is the better, so that large currents produced by the sun, can quickly be built-in battery is full. But in reality, the need for solar panels and solar power portable charger, find a balance. In general, we believe that solar power charger can not be less than the minimum 0.75w, (the power of solar panels in standard light intensity under 140mA of current. Arising under the sun in the general current of 100mA or so) if less than the power charge current is too small, basically no significant effect.

Brunton Solar Controller 12-Volt Battery Charge MonitorSunforce 7 Amp Charge ControllerHQRP 10A Solar Panel Power Battery Charge Controller / Regulator 12V / 24V 10 Amp 150W with PWM Type of Charging plus HQRP CoasterHQRP Solar 10A Charge Power Controller / Regulator 12V / 24V 10 Amp with LED Indicator plus HQRP Coaster

Control circuit:
If solar panels are charger front-end part, responsible for collecting solar energy and solar energy into electricity, then the control circuit is the hub of the entire product. It is mainly responsible for two functions: First, to produce the current front-end storage to the built-in battery which as far as possible eliminate or reduce the waste to a minimum; second is when the charger for charging mobile phones and other devices, as many as possible will be within The battery in the power output to the mobile phone and other devices, but as little as possible power consumption will be online on the road. Unfortunately, due to cognitive or technical problems, domestic manufacturers of solar charger control circuit design optimization did not arouse enough attention, resulting in production out of less practical solar power charger: front-end can not store the current generated to the battery; built-in rechargeable battery for mobile phones and other devices when a large part of the current waste line the road, unable to enter the charging device.
So consumers are choosing solar charger, you need to pay more attention to what these two indicators: Second conversion rate (front-end generated electricity stored in battery efficiency) and discharge efficiency (built-in battery in the electrical input to the need to charge the device efficiency). The two efficiency is better. In general, secondary storage efficiency can now do a very good 95%, discharge efficiency is 83% or more. Produced by the standard solar chargers is designed for.

Control circuit to measure good or bad is another important criterion: whether to do a variety of control circuit protection. In general, a good solar charger, control circuit should have: over-current protection (when the current is too high can automatically limit, will not produce damage on the charge device), overshoot protection (when the battery reaches the set the limit, will automatically stop charging the battery, so as to prevent battery damage or even the possibility of an explosion), over-discharge protection (mainly to protect the battery, to avoid deep discharge and damage with batteries), temperature protection (when the temperature control circuit more than set temperature, the charger will automatically stop working to protect the battery). If the control circuit on the protection of not doing or not doing much, it would be to shift the risk of quality solar charger needs charging digital devices such as mobile phones, it is likely losses to consumers. 

As the solar charger with the ordinary use of the environment of electronic products are different, solar battery charger on the built-in demand is highest. But this is just easy to forget where the consumer is also a lack of social responsibility of the manufacturers of some easy tricks place. In the market, a similar capacity battery prices may differ several times, so some of the cottage manufacturers to aim at the piece of the profits, many very low-cost chargers are used in secondary batteries refurbished battery, good point is the use of battery products in the B, C batteries products. Such a short battery life is not that consumers are likely to risk the personal security.

Solar battery charger built-in lithium polymer battery should be better, compared to normal most common lithium battery (lithium ion), lithium-ion polymer batteries fitted into the gel, the level of activity is much smaller than liquid lithium-ion battery will not explode. And for the application of solar chargers use of the environment, the best high temperature processing polymer battery to improve battery temperature limit.

Finally, note that the shell surface and its accessories. The solar charger Solar Battery Charger on the market common plastic shell-based, surface treatment are mainly light oil, rubber, paint, UV. Light oil prices were relatively cheap, while the surface prone to scratches. Rubber paint feel very comfortable, but with increased use of time would be Paint Falling off. UV generally only in high-end brand mobile phone use is very expensive. By UV treatment, the product fine and smooth surface, while hardness is good, not Paint Falling off, will not leave scratches.
If the solar charger with DC adapter, DC adapter and more concerned about quality is necessary. After all, this relates to the product and personal safety.


Saturday, June 26, 2010

How To Make A Solar Panel From Scratch

Saturday, June 26, 2010
   Power from the Sun: A Practical Guide to Solar Electricity   Learning how to make a solar panel from scratch is a fun and you even don’t need to have any extra skills for that. This article will give you a very brief yet clear DIY guide on building a solar panel from scratch, i.e. things that are of no use to you rather than throwing it to the dust bin or those things that are valuable yet find no use right now. So get ready to learn something new today by spending a few minutes in reading this article. 

Required Items:

Well, the required items are only things that are in and around your household and you need not take pains to buy something new for making a solar panel here. The necessary items required are listed below;
• Screwdriver
• A wood saw. (An electronic wood saw s
hall be preferred rather than a hand saw)
• Soldering gun
• Drilling machine
• Copper wires
• Cutter for cutting wires.
• Paint brush.
• Electrical Solder
• Sheet of plexiglass.
• Silicon caulk.
• Rosin flux pen.

These were some of the items you need necessarily to make full use of the scratch items which are to be used to build a solar panel. The scratch items that are going to be used are listed below;

• Plywood of considerable length and width
• Tin wires

However there are certain items that have to be bought from a hardware shop. They are solar cells and UV protective varnish. But even this can be avoided if you had used a solar panel already.


• Cut the plywood in dimensions that could accommodate all the solar cells and paint the cut plywood with UV protective varnish.
• Connect each cell to each other using wires and soldering them. But before that make sure to apply flux to all the connector strips in cells using the Rosin flux pen.
• Attach these cells to the plywood using silicon caulk dabs.
• Make sure to accommodate holes for the two wires that have to be pulled from the last solar cell. Once the wires have been fed through these holes it is of utmost importance that you seal it using silicon beads.
• The next step is to drill holes in the plexiglass to accommodate screws through them.
• Build a frame to support the plexiglass.
• With the help of silicon and screws attach the plexiglass frame to the plywood containing the solar cells.
• Thus your solar panel is ready. Make sure that you have assembled all parts carefully.


How To Install Solar Security Light

    This article went to some useful tips and steps to install solar lights security, including location, solar motion and the solar roof, wall or building safety of the increasing number of small solar panels. A safe solar lighting is a great way to ignite the door, deck, driveway or parking lot and power your Dell Inspiron 1501 Battery ! Here are some tips to successfully installed in a house or wall solar light's motion.
MAXSA Innovations 40225 Solar-Powered Motion-Activated 80 LED Security Floodlight

First, find a good place to install solar-powered security situation in the solar light that you want to shine the motion. This should be a place such as solar light can be detected to a safe range of motion, such as solar lights will also be motion light shine on your need it. The surface should be fairly flat, suitable for installation of solar lights in its motion and Dell Inspiron 1520 Battery .
Concept SL-100 32 LED Solar Security Light with Motion DetectorMaxsa Solar Dual Head LED Security Floodlight

Designers Edge L-949 10 LED Rechargeable Solar Panel Shed Light ModelStep 2
Second, find a good place to near the little sun panels, solar photovoltaic cells can be charged security. Sitting in what position it should face south for solar panels to get as much as possible the motion of time, sufficient sunlight during the day. Take a look at the entire on-site the number of sunny days in order to ensure that the location of solar light to obtain maximum solar motion. Look for possible sources, such as shade branches, hanging and other buildings, Dell Latitude D620 Battery or any other may give rise to pairs of solar panels for your safety covers. Sunlight motion of solar panels to be, a better chance that it will fully charge the battery every day solar security light for more time.
Solar Powered 15 LED Security Light and Motion Detector 2013
Step 3
A line will be connected to solar motion and micro-solar panels. Measuring line, take a look at how long it is. Once you have selected the solar-powered security situation in a good location and solar panels, to find a place to go between lines of solar panels and solar light's motion. Measurement and safety of solar lights and solar panels of the distance to ensure that your cables and Dell Latitude D820 Battery will reach somewhere in between.
Motion Sensor Solar Security LightStep 4Smart Solar/Smart Solar 3170WRM1 Solar Motion Security Light. 10 LED Dual head. Black
Solar security light into the small of your choice on the roof or wall and install solar sports solar panels point where you want to shine the light. Run the line between the two to ensure that the building walls or the motion of solar light in Dell Latitude D830 Battery , security line. If the area is large, you want light, you can even add other solar-powered security situation and found a broader field and light motions.
Westinghouse Solar PIR FloodlightStep 5Solar Motion Sensor Light with 36 Ultra Bright LED
Congratulations! You now have a solar security light is not necessary to maintain the freedom of power lines. Your solar light and Dell Inspiron 6400 Battery has a motion detector built-in mobile, security, solar energy lamp with adjustable delay time, best of all, you are a force for freedom the motion of sun's rays from the sun, the power automatically.

The article was written by Jack Smith : a laptop batetry expert from Battery 4 US.

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