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UltraFire™  

WF-137 Flashlight Battery Charger 3.6V 3.0V 250mA

by UltraFire   SKU: A06170000W
( 16 Reviews)
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Have you ever looked for a good Ultrafire Charger and batteries in your daily life? If you are sure you really need one, here we recommend you a fine product.This Flashlight Battery Charger is designed perfectly. The rechargeable battery charger and batteries are precisely engineered and rigorously tested for voltage, capacity, compatibility and safety, which exceeds original mobile battery specifications. It is with built in over voltage, over current and short circuit protection. This UltraFire Charger is really practical. And this Flashlight Battery Charger is environmentally friendly and high efficient. It will make the charge more convenient.
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UltraFire WF-137 Flashlight Battery Charger 3.6V 3.0V 250mA
USD$ 11.99
USD$ 10.99
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Product Description
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  • Specifications:

    • Input: 100-240V 50/60Hz
    • Output 1: 3.6V-250mA; 2 x 3.6V-250mA
    • Output 2: 3.0V-250mA; 2 x 3.0V-250mA
    • Cost effective, high efficiency and reliability
    • Built in over voltage, over current and short circuit protection
    • The Flashlight Battery Charger is designed to charge battery quickly and safely
    • This rechargeable battery charger is cost effective, high efficiency and reliability

    Details:

    UltraFire WF-137 Flashlight Battery Charger 3.6V 3.0V 250mA

    • Cost effective, high efficiency and reliability

    Flashlight Battery Charger

    • This Flashlight Battery Charger has built in over voltage, over current and short circuit protection

    UltraFire Charger

    • This UltraFire charger is compatible with 18650 3000mAh protected batteries

    Rechargeable Battery Charger

    • This Flashlight Battery Charger is environmentally friendly and high efficient. It will make the charge more convenient

    How Does a Battery Charger Work?

    • Recharging 101 - Batteries work because of the electrochemistry between an anode/negative terminal and a cathode/positive terminal. Some battery chemistries have the property of being chargeable, so that when electrical current is fed into them, the electrochemical discharge reaction reverses itself and the battery "recharges." Only some batteries have the chemistry and construction features that all them to be charged. Also, due to varying battery designs and chemistry, a given battery can only handle a certain voltage or amount of current. For example, the current fed into a lead-acid car battery would be very different from that of a lithium ion mobile phone battery
    • Simple Chargers - The most common type of charging device is the simple charger. Drawing electric current from a wall outlet, this provides either a constant voltage or constant current and will continue to feed it into the battery until unplugged. Usually a transformer of some kind is involved to convert the voltage. For example, North American wall outlets work on the 110-volt standard, which is inappropriate if directly applied to a 12-volt battery. Most charging devices work on this model. They are cheap, but because they never stop feeding in electricity at a set rate and do not stop until unplugged from their power source, they can damage batteries with overcharging if left unattended
    • Trickle Charging - Trickle charging is a variant of the simple charger in that it puts out a constant flow of electricity but at a very low rate. That rate is set to match the particular battery's decay or self-discharge rate. When the battery is completely recharged, the charging therefore continues only at the rate necessary to keep the battery charged and no more. This prevents overcharging and, therefore, degradation or damage to the battery, but makes the charging process very slow.
    • USB Charging - The USB bus on a computer is standardized with a 5-volt power output. Therefore, many computer accessories are designed to use USB outlets for battery charging. Excepting that it uses electricity drawn from a computer instead of directly from a wall outlet, it is similar to other charging methods.
    • Intelligent Charging - These chargers monitor either the time spent recharging, the temperature of the battery or the battery's voltage to determine when to autonomously terminate charging. This protects batteries from damage or degradation due to overcharging. Intelligent charging is becoming a popular charging feature for devices that use lithium ion batteries, as these are relatively expensive and suffer more degradation from overcharging than some other battery types

    Package Included:

    • 1 x UltraFire WF-137 250mA Battery Charger

Customers' Reviews
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  ( 16 Reviews)
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I have bought this product

Robbin Gould

from ()

Bought this item on

06-24-2011
00:00:00 06-24-2011 works well Overall:  
  • Other Thoughts: I have bought a lot of things. They always provide me with good service and high quality items. And this time is no exception. My charger came fast and comes with two batteries that make me very happy. And this charger works well that I have test it when arriving at me. Thanks.

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sharon shohat

from ()

Bought this item on

06-21-2011
00:00:00 06-21-2011 wow Overall:  
  • Other Thoughts: Work exactly as specified. Would be good if it were twice as powerful as it is. But all in all it is high quality and charges well. For the price it is acceptable.

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Mme RAULIN Céline

from ()

Bought this item on

06-10-2011
00:00:00 06-10-2011 works perfectly Overall:  
  • Other Thoughts: The batteries that came with the charger are high quality and charges well. This charger is easy to use and works perfectly.

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Eric Lauziere

from ()

Bought this item on

06-03-2011
00:00:00 06-03-2011 great Overall:  
  • Other Thoughts: I own one of these chargers to use with my 18650 batteries for several of my LED flashlights. I use 'protected' 18650 batteries to ensure proper charging. And it works well with my batteries.

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Patrycjusz Jaworski

from ()

Bought this item on

05-26-2011
00:00:00 05-26-2011 Flashlight Battery Charger Overall:  
  • Other Thoughts: I bought these from here. Fast shipping and delivery. The batteries and the charger are perfect. I'm using them on a regular basis everyday. They are truly very good. The product is definitely reliable. Thank you.

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leann Evans

from ()

Bought this item on

05-19-2011
00:00:00 05-19-2011 Rechargeable Battery Charger Overall:  
  • Other Thoughts: I bought one of these, because it sounded a bit more solid than the competing chargers. <br/>It charged the first set of batteries just fine. I let it cool down, put in a second set of batteries, and plugged it in. work well.

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Rocky Russell

from ()

Bought this item on

05-11-2011
00:00:00 05-11-2011 UltraFire Charger Overall:  
  • Other Thoughts: This is the best product. It fits just fine and charges just fine. I like this product. It charges the battery much faster than the computer cable which used to take overnight. The delivery was also quick. A good buy for sure. Great company with free shipping and inexpensive price!

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Carolyn Krajci

from ()

Bought this item on

05-06-2011
00:00:00 05-06-2011 Flashlight Battery Charger Overall:  
  • Other Thoughts: Just a great product. Does not over heat, gives you a variety of options.I bought this battery charger based on a friend's suggestion. Thank her. It works!

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