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Category Archives: technology

How to equalize deep cycle batteries


​Recharging deep-cycle batteries with a charger using a constant voltage or a fixed charge algorithm can, over time, lead to a condition called stratification. Stratification occurs when the acid in the electrolyte separates from the water and settles to the bottom of the battery causing damage to the bottom area of the battery plates.

To prevent stratification, it’s important to regularly perform an equalizing procedure to your batteries.   Equalizing adds an extended charge at the end of the normal charging process necessary to  promote gassing of the electrolyte in order to “re-mix” the acid and water.
THE EQUALIZING PROCESS

The method used to properly equalize batteries is as easy as using a high-quality battery charger that features an automatic equalizing mode, or has the capability to extend or restart the charging process as needed. Follow these procedures to properly equalize charge your batteries.

    Make Sure The Battery Is A Flooded Lead-Acid Type.

    All Electrical Loads To The Battery Must Be Removed.

    Connect Your Charger And Charge The Batteries Until The Charger Terminates A Normal Charge Cycle.

a.) If the charger is equipped with an automatic equalizing mode, make sure the charger is connected and powered up long enough to complete equalization.

b.) If the charger is not equipped with an automatic equalization mode, assure the charger completes a full, automatic charge, and then restart the charger by disconnecting AC power and reconnecting.  The charger should restart and extend the charge time by 1-3 hours

4.   Correct Equalizing Will Cause Gassing And Bubbling Of The Electrolyte.

5.   Take Specific Gravity Readings Every Hour.

6.   You Will Know That The Equalization Process Is Complete: When the specific gravity values no longer increase during the gassing stage.  If the charger terminates the charge automatically, before the hourly specific gravity readings are constant, restart the charger and continue the process until specific gravity readings are constant.

7.  Make Sure To Replace Any Water Lost During The Process.

Equalizing your deep-cycle batteries is a great way to extend battery life and lower operational costs over time. It will also help to remove a buildup of lead sulfate crystals on the battery’s plates, a condition called sulfation. This condition lowers the battery’s ability to take a full-charge and diminishes its full power. Equalizing is just one of several procedures you should be adding to your maintenance schedule every time you service the batteries.  This regular service, including watering, should be performed at least once a month, or more frequently during periods of heavy use.

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How to Recover data from Hard disk, USB flash drive or SD card?


How to Recover data from Hard disk, USB flash drive or SD card

[sociallocker id=”1063″] #1. Download Testdisk for Windows, Linux or Mac from here. Plug in your USB flash drive, SD card or External Hard disk.

#2. Extract the zip file and open the file called Photorec, (Run as Administrator) it will open a Command Prompt. [/sociallocker]

#3. Now select a media, which you want to recover and press “Enter”.

Select a Media

Note : If you see the message “Please select the partition table type”, you need to select Intel for Windows and press Enter.

#4. You will see “To recover lost files, PhotoRec need to know the filesystem type where the file were stored”, choose other for Windows and Mac and ext2/ext3 for Linux, press Enter.

Recovered file type

#5. Next you’ll see “Do you want to save recovered files in….”, type Y and press Enter.
Testdisk recovery software

#6. The software recovering the files and save it to the destination folder. It will take around 10 min for 8 GB Pen drive to recover data.

 
 

PDF Restrctions Remover


The best free pdf restrictions remover software to remove print copy and edit security.
Adobe PDF documents are very important and represent an essential part of the daily activities for a lot of users. Sometimes PDF files are protected with a password settled by the admin / owner to restrict any changes in the document such as copy, edit or print. In this case you will not be able to do any action you need except if you know the password. Of course this is a problem for you. Don’t get frustrated, there is a very simple and professional solution for you. All you have to do is to use WowTron PDF Restriction Remover.
The program will remove restrictions from Adobe PDF files and enable you to easily copy, edit & print text or images . It supports to remove all the PDF restrictions in batches.
http://wowtron.com/pdf-restriction-remover/index.html

 
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Posted by on August 3, 2016 in technology, Tips

 
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Convert CFL to LED


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Posted by on June 27, 2016 in Arduino, Ideas, Startup, technology, Tips

 

Homemade Laundry Detergent


http://m.instructables.com/id/Homemade-Laundry-Detergent/?ALLSTEPS

 
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Posted by on May 18, 2016 in Green world, Ideas, Job, Startup, technology, Tips

 

How solar panel specs are defined: 240 Watt Solar Panel


http://pointzeroenergy.com/product/240-watt-solar-panel/

Electrical Data
Nominal peak power(Pmax) 240Wp
Maximum power voltage(Vmp) 30.65V
Maximum power current(Imp) 7.83A
Short-circuit current(Isc) 8.36A
Open circuit voltage(Voc) 37.8V
Optimized cell efficiency(η) 17.00%
Limits
Operating temperature -40℃ to +85℃
Maximum system voltage
(IEC/UL standard) 1000VDC/600VDC
Additional Data

Number of cells and type of connection 60,serial connection
Dimensions Length:1640mm
Width:992mm
Height:46mm
Net weight 20kgs/pc
Gross weight 475kgs/ctn(22pcs/ctn) 44kgs/ctn(2pcs/ctn)
1047lbs/ctn(22pcs/ctn)  97lbs/ctn(2pcs/ctn)
Package dimension 1695x1120x1140mm 1658x1022x110mm
67”x45”x45”      66”x41”x4”

Guaranteed Power Output 15 year: 90% of its nominal power rating;  25 year: 80% of its nominal power rating
Impact Resistance Can bear the force that is generated by one 227g steel ball falling down from 1m height
Warranty period 10 years:Materials and workmanship defects
Certificates UL1703/CSA, CEC.
Cells Polycrystalline silicon photovoltaic cell

 

The Beginner’s Guide to Ecommerce Shipping and Fulfillment


https://www.shopify.com/blog/14069585-the-beginners-guide-to-ecommerce-shipping-and-fulfillment

 
 
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