What is the Power Bank ?

Power Bank A battery charger is a device used to put energy into a secondary cell or rechargeable battery by forcing an electric current through it.
The charging protocol depends on the size and type of the battery being charged. Some battery types have high tolerance for overcharging and can be recharged by connection to a constant voltage source or a constant current source; simple chargers of this type require manual disconnection at the end of the charge cycle, or may have a timer to cut off charging current at a fixed time. Other battery types cannot withstand long high-rate over-charging; the charger may have temperature or voltage sensing circuits and a microprocessor controller to adjust the charging current, and cut off at the end of charge. A trickle charger provides a relatively small amount of current, only enough to counteract self-discharge of a battery that is idle for a long time. Slow battery chargers may take several hours to complete a charge; high-rate chargers may restore most capacity within minutes or less than an hour, but generally require monitoring of the battery to protect it from overcharge. Electric vehicles need high-rate chargers for public access; installation of such chargers and the distribution support for them is an issue in the proposed adoption of electric cars.

Charge rate 
Charge rate is often denoted as C or C-rate and signifies a charge or discharge rate equal to the capacity of a battery in one hour.[1] For a 1.6Ah battery, C = 1.6A. A charge rate of C/2 = 0.8A would need two hours, and a charge rate of 2C = 3.2A would need 30 minutes to fully charge the battery from an empty state, if supported by the battery. This also assumes that the battery is 100% efficient at absorbing the charge.
A battery charger may be specified in terms of the battery capacity or C rate; a charger rated C/10 would return the battery capacity in 10 hours, a charger rated at 4C would charge the battery in 15 minutes. Very rapid charging rates, 1 hour or less, generally require the charger to carefully monitor battery parameters such as terminal voltage and temperature to prevent overcharging and damage to the cells.

Applications 
Mobile phone charger 
Micro USB mobile phone charger 
A charging station for various brands of mobile phones.
Most mobile phone chargers are not really chargers, only power adapters that provide a power source for the charging circuitry which is almost always contained within the mobile phone. They are notoriously diverse, having a wide variety of DC connector-styles and voltages, most of which are not compatible with other manufacturers' phones or even different models of phones from a single manufacturer.

Users of publicly accessible charging kiosks must be able to cross-reference connectors with device brands/models and individual charge parameters and thus ensure delivery of the correct charge for their mobile device. A database-driven system is one solution, and is being incorporated into some designs of charging kiosks.
Mobile phones can usually accept a relatively wide range of voltages[citation needed], as long as it is sufficiently above the phone battery's voltage. However, if the voltage is too high, it can damage the phone. Mostly, the voltage is 5 volts or slightly higher, but it can sometimes vary up to 12 volts when the power source is not loaded.
There are also human-powered chargers sold on the market, which typically consists of a dynamo powered by a hand crank and extension cords. There are also solar chargers.
China, the European Commission and other countries are making a national standard on mobile phone chargers using the USB standard. In June 2009, 10 of the world's largest mobile phone manufacturers signed a Memorandum of Understanding to develop specifications for and support a microUSB-equipped common External Power Supply (EPS) for all data-enabled mobile phones sold in the EU. On October 22, 2009, the International Telecommunication Union announced a standard for a universal charger for mobile handsets (Micro-USB).

KUANTAN 1 Feb. - Jabatan Kastam Diraja Malaysia (JKDM) tidak mempunyai kuasa untuk menyekat kemasukan rokok elektronik, e-Cigarette kerana dikategorikan sebagai gajet komputer yang tidak memerlukan permit untuk dibawa masuk ke dalam negara.

Penolong Ketua Pengarah Kastam (Penguatkuasaan), Datuk Zainul Abidin Taib berkata, pengimport hanya perlu membuat ikrar sekiranya mahu membawa masuk rokok elektronik tersebut termasuk cecair rokok berkenaan.

"Itu sebab rokok elektronik boleh lepas masuk. Namun perkara ini sedang dalam kajian kementerian terlibat dan kita bersedia bila-bila masa untuk beri kerjasama dalam isu ini," katanya dalam sidang akhbar di Wisma Kastam Negeri, di sini hari ini.

Bagaimanapun, katanya, jika pengimport yang cuba menipu dalam membuat ikrar ke atas barangan yang ingin dibawa masuk mereka boleh didakwa di bawah Seksyen 133 (1)(a) Akta Kastam 1967 iaitu membuat ikrar tidak benar ke atas dagangan.



Artikel Penuh: http://www.utusan.com.my/utusan/Dalam_Negeri/20130202/dn_03/Rokok-elektronik-dikategorikan-gajet-komputer---Kastam#ixzz2LVYGmiQW 
© Utusan Melayu (M) Bhd 

Source : http://www.e-cigarette-forum.com/forum/diy-e-liquid/43988-simple-easy-diy-test-mg-ml-nicotine-follow-up-dvaps-method.html

The Reason:
Since there are no true production standards, and people like to mix their own liquids, this will allow you to test liquid for nicotine levels easily.

The Kit:
.12N Sulfuric Acid
Bromothymol Blue
Distilled Water
10mL Graduated Cylinder, .1mL markings is optimum
A paper towel

The Test:

1. Pour some distilled water in the cylinder, swirl it, dump it out.
2. Repeat step 1.
3. Repeat step 1.
4. Dry cylinder with a sliver of paper towel.
5. Put 1mL of eLiquid in the cylinder
6. Add 2 drops blue
7. Fill cylinder to the 3mL mark with distilled water
8. Swirl to mix
9. Add a drop of acid
10. Swirl to mix
11. If the color of the solution didn't turn pale yellow, repeat 8-9
12. Measure the final volume
13. Subtract 3 from the number you read in step 11
14. Multiply the result of step 12 by 19.4712
15. The resulting number is the mg/mL

Notes on measuring: Always measure from the center of the liquid, where its at its lowest point. Never measure from the high point on the sides.

Notes on adding to the cylinder: Avoid dribbling liquids down the sides, as it will skew results, since some will add to the amount when you swirl to mix. For an accurate end result, exactly 1mL eliquid must be used.

Note on step 10: Over several drops, the color will go from blue to bluish-green to green, and when you've reached the 'magic drop', it will suddenly all turn yellow.

Note on final result: If the manufacturer added acids for preservatives, it should not skew the results enough to matter, as they use very minute amounts. Also, as most DIY'ers can't read volumes to several decimals, bear in mind there is a small margin of error. I tested 12 different bottles, 10 of the results were within 1mg of their rated, all just slightly low, probably due to flavoring being added.

Car, Caution, Cleanup:
The .12N sulfuric acid and blue are designed for use by average home owners. They are quite safe to use. The acid is very diluted, so it won't eat holes in things. If spilled, the blue will stain.

The distilled water has several safety concerns, if you're unaware, please see the many dangers it poses at the Dihydrogen Monoxide Research Division. Since this may catch someone who truly doesn't get it, think H2O.

The real danger of testing is posed by the e-liquid. If you're testing high nicotine content liquid, a mL would be enough to kill childrens, pets, animals, even you. If you're working with very high strength, I'd caution you to use latex, rubber, or vinyl gloves.

Disposal of solution after test should be as you would dispose of e-liquid. The most toxic part is the nicotine content. Unless you just poured out bleach or drain-o, you should be fine pouring it in the drain, so long as you flush the drain after with some water.

After liquid disposal, rinse your testing equipment clean with plain old tap water, shake off excess water, and let air dry. The liquid does get sticky, and gets hard to clean if left to dry on.

Example:
Cylinder is rinsed well.
1mL of liquid labeled 24mg is added to the empty cylinder.
2 drops of blue are added
Distilled water is added until its at 3mL
The solution is swirled
A drop of acid is added, then its swirled, and this is repeated ...
The solution turns yellow after several 'drop and swirl's
The final volume is measured at just over 4.2mL
Subtract 3 to get 1.2
Multiply this by 19.4712 to get ~23.3, which is the actual mg/mL

Where to get supplies:
The acid and blue you can find in a local pool chemical supply store, in the test kit refill section. Both will be labeled with their actual chemical names. The magic number '19.4712' requires that the acid be .12N acid. Also, do not buy 'total alkalinity indicator' as its not the right chemical (the acid is usually right next to it).

Distilled water must be distilled water, not mineral, not filtered, not tap, not carbonated. You can find it at the grocery store.

Cylinders you can buy in hobby shops, for chemistry set piece replacements.

If you want a handy little bottle for putting the water in, you can buy clean, sterile 60mL dropper bottles from tattoo supply shops for about $1 each. Just make sure you give it at least 3 rinses with distilled water before filling it.

For those that don't have the options available to them that those in big cities have, and rely on internet ordering, here's a few links for you...

Inexpensive lab equipment for DIY chemistry...
10mL Glass .1mL-Graduated Cylinder

Taylor pool testing chemical supplies...
.12N Sulfuric Acid
Bromothymol Blue

Reference
The original 'simplified' method by DVap can be found here.
The original 'expanded' method, also by DVap, can be found here.

KGO and VVPT kit now available again at BigVapors.com .. Now VVPT kit comes with improved bateries capacity 1100mah compare to previous 900mah only,. longer vaping experience with one single charging.
Both kit KGO and VVPT now included with 2pcs CE4 Stardust Clearomizer  and 10ml Strawberry Eliquid. The good news,. price remain unchange.
Please Click HERE to purchase

This is the new Chrome version of the Vari-Tube Electronic Cigarette. Style meets function with this awesome personal vaporizer. A great variable voltage e-cigarette at an incredible price 
So why is this version better than earlier versions from this and other manufacturers? 

1. The amperage limit has been increased from 2.5 to 3.2 amps. Now, 2.5 amps is plenty for most people as it allows you to drive a 1.7 ohm cartomizer at around 4.2 volts and a standard resistance cartomizer above 5 volts. Where this really helps is with dual coil cartomizers as they appear to the device to be around 1.5 ohms or so but the individual coils are above 3 ohms so they need more current. 
2. This device allows you to see the resistance of the attached cartomizer or atomizer. This is incredibly handy if you are like me and just leave empty cartomizers lying around waiting to be filled. With this e-cig, just screw it on, press the button and get an accurate reading of the resistance.  You can also use it to validate the stated resistance of the cartos and attys you get from your vendors. 
3. The vent hole size is increased to 3 cm. This just adds to the overall safety of the device in the case of a catosrophic battery incident. 
4. Metal end caps
5. 510 and EGO threads.  This electronic cigarette allows you to use all of the standard 510 threaded cartomizers and atomizers as well as most EGO type devices without an adapter.  Please note that the Chrome Vari-Tube has been tested with the EGO CE4 clearomizers that we sell on this site.  We make no warranties about the fit of other devices.
   

This personal vaporizer is chrome plated aluminum.  The mini version. It uses 18350 IMR cells, while the standard version uses 18650 IMR cells.  How long a battery will last on a single charge will vary greatly depending upon the voltage setting of the Vari-Tube, the resistance of your cartomizers or atomizers and the mAh ratings of your batteries.


Features: 
Sturdy Chrome-Plated, Aluminum body with metal end caps 

Selectable Voltage - adjust the voltage to your personal tastes - from 3v to 6v in 0.1v increments.

LCD Screen - used to display the current voltage setting, the cartomizer / atomizer resistance and the charge left in your battery.

510 and EGO connection - gives you access to the greatest amount of cartomizers, atomizers and tanks from the vendor of your choice. 

Regulated Output - keeps the voltage the same regardless of the remaining battery charge. As the battery drains, the device will keep the voltage consistent giving you a consistent vaping experience until it is time to put in a fresh battery. 

Accidental Overheating Protection - If the activation button is held down for more than 10 seconds, the device will stop providing power until the button is released. This will keep you from a mishap if you activate the unit in your pocket. We do recommend that you shut the unit down using the Activation button BEFORE putting it in your pocket. 

Short Circuit Protection - the unit can detect a cartomizer / atomizer that has a resistance that is too low for the current voltage setting (will draw to many amps and generate too many watts). When this occurs the voltage will be reset to 3.7 volts to protect all of the components (and you). If the unit detects that the cartomizer / atomizer is shorted out, it will shut off power to the device. 

Reverse Battery Protection - this will protect you and the device in the situation where the battery is installed incorrectly.

Battery Monitoring / Over-Discharge Protection - the device will monitor the battery voltage and automatically turn off when the battery is voltage reaches a level of about 3.3 volts. This keeps you from over-discharging your batteries which will shorten their life and possibly damage them. 

Current Protection - The unit is designed to monitor the current and shut itself off if it detects any excessive over-current conditions (greater than 3.2 amps).

Power Button - Need very quick 5 clicks at on/off button

Vent hole - A 3 mm vent hole is located on the bottom of the unit - all lithium ion batteries have the potential for "unpredictable" behavior. The vent hole provides that extra margin of safety if something catastrophic happens with the installed battery.

It is YJ Vari tube .. slightly different compare to L Rider Lambo kit.
To switch on/off, very quick 5 clicks at power button, the small button in between +/- voltage button. Device need to switch on after insert the battery. Please make sure battery in correct polarity.

Recommended setting voltage : 3.3v , for atomizer/cartomizer rated 2.5~2.9ohm.

YJ Vari tube using standard 510 connector, Please do not over tightening when screw in the clearomizer. it will break the rubber seal inside the connector and will lead to circuit damage. Please take note,. connector seal break due to over tightening will not cover in warranty. Also please make sure the connector always clean and dry. Please visit warranty page HERE for further details.

*YJ Vari tube model with Pulse Width Modulation & 3.2 Amp Limit.  Please note that the Chrome Vari-Tube v2.0  is NOT recommended for a beginner.  Improper use and maintenance of Lithium type batteries can result in personal injury and/or property damage.  We highly suggest that EVERYONE please visit the free educational website Battery University for additional information on how to use and maintain Lithium type batteries.  We do not recommend using Atomizers, Cartomizers, or Clearomizers with a lower resistance than 2.5 ohm with our Chrome Vari-Tube v2.0

Genuine version 2 of the 2ml capacity Vision ViVi Nova tank system.

This set includes 3 replaceable coil heads in 3 resistances to try along with the complete tank assembly. Clear viewing window of the tank allows you to see the liquid level. Optional accessories allow cosmetic customization of the drip tip. Design allows user to draw eliquid from the tank reservoir as well as dripping directly to the coil through the 510 style drip tip. Tank system features a 510 connection point and will fit almost anything with a 510 or eGo connection. Easily refillable and virtually leakproof design will pacify even the pickiest of users. 3 pcs replaceable coil heads in makes for economical long term use.

Diameter of the tank is 14mm, Items can be purchase at accessories section, HERE..

Includes:
- 2ml Clear Tanks Assembly with coil head rated 2.8ohm
- 2 x replacement coil head rated 2.8ohm

Dear all my value customers,. I admit that several queries send to my email were not answered and entertained due to certain reason. The answer sometimes you can search from this website, the main purpose why this website developed was give as much information to the users,. you need search the answer, learn it ! not simply shoot an email or messaging to ask the question which the answer clearly existed in this website!

Often query and question that i received which totally will not answer or entertain..
- Items price .... Please take a look properly,. all items already put their own price, you just need to click it to buy it!
- Stock availability... I'll put remarks 'temporary out of stock' if the items totally out of stock. The items without remarks always had stock!
- Items / kit spesification ... all clearly stated,. what items included and not included, just read it properly please.
- How to ... please search in this website properly, all there!
-Flavor list ... please look properly,

Please email me if you need quotation to purchase via bank transfer ,. kindly list down the items description and quantity properly,. i'll reply as soon as possible upon find my free time,
For purchase via credit card, just click "add to cart" button,. payment will be handle by paypal as a payment processor.
i'm not full time in this business, i'm working from monday to friday,. 8am to 5pm ,. some times really busy and get to out station, please understand.

iTaste VV version 2 is a new variable voltage e cigarette with beautiful design, solid quality and rich features. It's a microprocessor controlled variable voltage electronic cigarette that can automatically suggest the best setting for any attached cartomizer or atomizer of your choice.

Kindly visit Electronic Cigarette Kit section to purchase.

iTaste VV main features:

Magnetic Atomizer Connection
Beyond the square shape, the connector has to be the hallmark of the uniqueness of this ecig. This connector is purely proprietary. Rather than a threaded connection, the atomizer simply slides on the battery.
Powerful magnets hold everything in place. This feature is sort of a mixed bag. On the plus side, it’s absolutely brilliant. The feature works amazingly well and makes it simple to change out accessories.

The square magnetic adapter which are small metal blocks with the proper 510 type thread on one end looks great on the iTaste. The adapter raises the height of the connector as well-meaning that the iTaste’s pen cap won’t work with a number of cartomizers.

Atomizer Tanks
Other than the square shape, there’s nothing terribly unusual about the tanks that go on the atomizers.
Filling the tank is easy enough, either stick a needle through the small hole in the top designed for the atomizer’s spike and fill. Alternately, users can just remove the cap (which is a soft silicone) and fill directly from the e-liquid bottle.

Variable Voltage
The main attraction here is the voltage adjustment. The iTaste VV can range from 3.0 to 5.0v in .1v increments. To adjust the voltage hold one of the two buttons down for a couple of seconds. The puff counter will display for a second and then the set voltage will be shown.
Use the two buttons to adjust the voltage up or down accordingly.

Puff Counter
The first number mentioned above is the display of how many times users have hit the button. 
The puff counter will reset each time users turn the device off by clicking the power button 3 times in a row.

Voltage Recommendations
This is another unique feature. Basically, the e-cigarette measures the resistance of the attached atomizer or cartomizer and then recommends a voltage based on the resistance.
To access the feature, press both buttons at the same time. Two numbers appear. The first is the minimum suggestion while the second is the recommended max.

The 2nd revision of the iTaste now stays at whatever voltage users set it.

Lambo Variable Voltage Electronic Cigarette Kit

Includes:
1 x Lambo body
2 x IMR 18650 battery (1500mAh) - recommended high drain battery
2 x CE2 Clearomizer 2.8ohm
1 x Delrin Driptip  (Solid Black / Clear transparent)
1 x Trustfire Universal Charger (dual slot)
1 x Zipper case
2 x 10ml USA Eliquid (any available flavor)
14 days warranty (Lambo body only for any malfunction due to manufacturing defects)

Kindly visit Electronic Cigarette Kit section to purchase.

This is the Lambo, the newest variable voltage electronic cigarette,  an advanced personal vaporizer allowing you to vary the voltage from 3.0 volts to 6.0 volts in 0.1 volt increments.  The Lambo is constructed from chrome-plated brass. This all metal construction makes this device a bit heavy but incredibly sturdy. The bright chrome finish looks awesome. This is the full size version. It uses 18650 IMR battery.

Selectable Voltage - adjust the voltage to your personal tastes - from 3v to 6v in 0.1v increments

LCD Screen - used to display the current voltage setting and optionally the current charge left in your battery

510 connection - gives you access to the greatest amount of cartomizers, atomizers and tanks from the vendor of your choice

Regulated Output - keeps the voltage the same regardless of the remaining battery charge. As the battery drains, the device will keep the voltage consistent giving you a consistent vaping experience until it is time to put in a fresh battery.

Accidental Overheating Protection - If the activation button is held down for more than 10 seconds, the device will stop providing power until the button is released. This will keep you from a mishap if you activate the unit in your pocket. We do recommend that you shut the unit down using the Power On / Off button (see below) BEFORE putting it in your pocket, though we all can forget.

Short Circuit Protection - the unit can detect a cartomizer / atomizer that has a resistance that is too low for the current voltage setting (will draw to many amps and generate too many watts). When this occurs the voltage will be reset to 3.7 volts to protect all of the components (and you). If the unit detects that the cartomizer / atomizer is shorted out, it will shut off power to the device.

Reverse polarity Battery Protection - this will protect you and the device in the situation where the battery is installed incorrectly. This sounds like a no-brainer, but I have personally burnt out 2 switches on my Epower by putting the battery in backwards.

Battery Monitoring / Over-Discharge Protection - the device will monitor the battery voltage and automatically turn off when the battery is voltage reaches a level of about 3.3 volts. This keeps you from over-discharging your batteries which will shorten their life and possibly damage them.

Battery Voltage Meter - always know how much charge is left in your battery - simply press the red power button 7 times and it will display the remaining voltage of the battery. The LCD screen will flash when the battery needs to be recharged, and will stop powering the device.

Current Protection - The unit is designed to monitor the current and shut itself off if it detects any excessive over-current conditions (greater than 2.5 amps).

Vent hole - located on the bottom of the unit  - all lithium ion batteries have the potential for "unpredictable" behavior. The vent hole provides that extra margin of safety if something catastrophic happens with the installed battery.

Simple Operation:

Power on/Off Button - Hold the button down for 5 seconds to turn the device on, hold the button again for 5 seconds to turn the device off.

+ Button - Press this button to increase the voltage by .1 volt (between 3 volts and 6 volts). When you try to go past 6 volts, the unit automatically goes to 3 volts.

- Button - Press this button to decrease the voltage by .1 volt (between 3 volts and 6 volts). When you try to go below 3 volts, the unit automatically goes to 6 volts.

+ and - Button Together - Press and hold both buttons for five second to disable the + and - button. This locks the device at the current voltage setting.

Safety Alert
Be sure that the batteries that you are using match the e-cigarette manufacturer's recommendations.  For additional information on the proper usage and maintenance procedures for these batteries, please visit the Battery University.

Be advised that "stacking" multiple batteries to achieve higher voltages is neither recommended nor warranted.