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TrustFire®

18650 2400mAh 3.7V Rechargeable Protected Li-ion Battery 2Pcs

Digg(184) ( 35 Reviews)
       
US $11.99
 
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The rechargeable battery allows you to get incredible runtime. High security, pollution-free, no memory effects. Great for flashlights, toys, remote controls etc. The Li-ion battery uses high-quality, high-capacity, stable imports of batteries, supplemented by a new generation of protection chip set overcharge, over-discharge capabilities, comprehensive care of the safety of lithium batteries, and greatly extends the service life of lithium batteries. Stay powered up for a long time. With such rechargeable battery you always have fresh Batteries for your electronics. It has such a competitive price. You will get more than you paid! It's time to make a sensible choice to get this best battery! Brand new & high quality 2400mAh 3.7V rechargeable protected Li-ion battery. The best 18650 battery is great for flashlights, toys, remote controls etc. So what are you still waiting for?
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Product Description

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  • Specifications: 

    • Voltage: 3.7V
    • Capacity: 2400mAh
    • Size: 65 x 18mm / 2.6 x 0.7in (L x Dia.)
    • Made in Asia
    • The rechargeable batteries will not make any pollution to the environment
    • Provides excellent continuous power sources to your device
    • This Li-ion Battery can stay powered up for a long time
    • With the refined technology which these rechargeable batteries are produced they are safe to use
    • Not include harmful elements
    • The rechargeable batteries will do no harm to your health or the environment
    • Great for flashlights, toys, remote controls etc
    • Wholesale Rechargeable Battery at Dailyshop.com, you will get the best price

    Details:

    TrustFire TrustFire 18650 2400mAh 3.7V Rechargeable Protected Li-ion Battery 2Pcs

    • The rechargeable batteries will not make any pollution to the environment

    Rechargeable Battery

    • Provides excellent continuous power sources to your device

    Li-ion Battery

    • This Li-ion Battery can stay powered up for a long time

    Best 18650 Battery

    • High-quality and high-capacity, pollution-free, no memory effects

    4 Tips to Extend Your Lithium Battery Life:

    • Battery Memory - When I first got my new cellphone, my friend recommended to fully drain the battery before recharging it. His reasoning was connected to the idea of battery memory. Allowing the battery to fully discharge then recharging to max, supposedly gives you the complete battery capacity. Otherwise, if you simply charged from the half way point to max battery capacity, the battery would treat the half way point as the empty point, thus cutting your battery capacity in half
    • Battery Calibration - There are some benefits to fully discharging your lithium battery periodically, for laptops this can be especially important. If you start to notice your battery meter becoming more and more inaccurate, it may be time for some battery calibration. Allow your lithium battery completely drain, then charge until the battery is full again. This will calibrate your battery  giving you more accurate readings
    • Consequences of Heat - Another enemy of lithium battery life is heat. If you were to leave your laptop plugged in and running for a year, you should expect the lithium battery capacity to be anywhere between 60% to 80% of it's original max capacity. This is why people that use their laptops as desktop replacements will notice greatly reduced battery life performance after one year of use. This issue can be resolved by removing the battery while using a corded power source
    • Battery Storage - If you don't plan on using your lithium battery for prolonged periods of time, then you'll want to reduce the charge level to 40% and place the battery in the fridge (not freezer). Storing the battery at 100% charge level applies unnecessary stress and can cause internal corrosion. On the other hand, if the charge is too low, the battery can become permanently unusable, due to battery self discharge

    What rechargeable battery is:

    B003M7AIPK

    • A rechargeable battery or storage battery is a group of one or more electrochemical cells. They are known as secondary cells because their electrochemical reactions are electrically reversible. Rechargeable batteries come in many different shapes and sizes, ranging anything from a button cell to megawatt systems connected to stabilize an electrical distribution network. Several different combinations of chemicals are commonly used, including: lead-acid, nickel cadmium (NiCd), nickel metal hydride (NiMH), lithium ion (Li-ion), and lithium ion polymer (Li-ion polymer)
    • Rechargeable batteries have lower total cost of use and environmental impact than disposable batteries. Some rechargeable battery types are available in the same sizes as disposable types. Rechargeable batteries have higher initial cost, but can be recharged very cheaply and used many times.

    Usage and applications:

    TrustFire TrustFire 18650 2400mAh 3.7V Rechargeable Protected Li-ion Battery 2Pcs

    • Rechargeable batteries are used for automobile starters, portable consumer devices, light vehicles (such as motorized wheelchairs, golf carts, electric bicycles, and electric forklifts), tools, and uninterruptible power supplies. Emerging applications in hybrid electric vehicles and electric vehicles are driving the technology to reduce cost and weight and increase lifetime.[1]
    • Normally, new rechargeable batteries have to be charged before use; newer low self-discharge batteries hold their charge for many months, and are supplied charged to about 70% of their rated capacity.
    • Grid energy storage applications use rechargeable batteries for load leveling, where they store electric energy for use during  load periods, and for renewable energy uses, such as storing power generated from photovoltaic arrays during the day to be used at night. By charging batteries during periods of low demand and returning energy to the grid during periods of high electrical demand, load-leveling helps eliminate the need for expensive ing power plants and helps amortize the cost of generators over more hours of operation.
    • The US National Electrical Manufacturers Association has estimated that U.S. demand for rechargeable batteries is growing twice as fast as demand for nonrechargeables

    Charging and discharging:

    Rechargeable Battery

    Diagram of the charging of a secondary cell battery

    • During charging, the positive active material is oxidized, producing electrons, and the negative material is reduced, consuming electrons. These electrons constitute the current flow in the external circuit. The electrolyte may serve as a simple buffer for ion flow between the electrodes, as in lithium-ion and nickel-cadmium cells, or it may be an active participant in the electrochemical reaction, as in lead-acid cells.
    • The energy used to charge rechargeable batteries usually comes from a battery charger using AC mains electricity. Chargers take from a few minutes (rapid chargers) to several hours to charge a battery. Most batteries are capable of being charged far faster than simple battery chargers are capable of; there are chargers that can charge consumer sizes of NiMH batteries in 15 minutes. Fast charges must have multiple ways of detecting full charge (voltage, temperature, etc.) to stop charging before onset of harmful overcharging.
    • Rechargeable multi-cell batteries are susceptible to cell damage due to reverse charging if they are fully discharged. Fully integrated battery chargers that optimize the charging current are available.
    • Attempting to recharge non-rechargeable batteries with unsuitable equipment may cause battery explosion.
    • Flow batteries, used for specialised applications, are recharged by replacing the electrolyte liquid.
    • Battery manufacturers' technical notes often refer to VPC; this is volts per cell, and refers to the individual secondary cells that make up the battery. For example, to charge a 12 V battery (containing 6 cells of 2 V each) at 2.3 VPC requires a voltage of 13.8 V across the battery's terminals.
    • Non-rechargeable alkaline and zinc-carbon cells output 1.5V when new, but this voltage gradually drops with use. Most NiMH AA and AAA batteries rate their cells at 1.2 V, and can usually be used in equipment designed to use alkaline batteries up to an end-point of 0.9 to 1.2V.

    Reverse charging:

    • Subjecting a discharged cell to a current in the direction which tends to discharge it further, rather than charge it, is called reverse charging; this damages cells. Reverse charging can occur under a number of circumstances, the two most common being:
    • When a battery or cell is connected to a charging circuit the wrong way round.
    • When a battery made of several cells connected in series is deeply discharged.
    • When one cell completely discharges ahead of the rest, the live cells will apply a reverse current to the discharged cell ("cell reversal"). This can happen even to a "weak" cell that is not fully discharged. If the battery drain current is high enough, the weak cell's internal resistance can experience a reverse voltage that is greater than the cell's remaining internal forward voltage. This results in the reversal of the weak cell's polarity while the current is flowing through the cells[3][4]. This can significantly shortens the life of the affected cell and therefore of the battery. The higher the discharge rate of the battery needs to be, the better matched the cells should be, both in kind of cell and state of charge. In some extreme cases, the reversed cell can begin to emit smoke or catch fire.
    • In critical applications using Ni-Cad batteries, such as in aircraft, each cell is individually discharged by connecting a load clip across the terminals of each cell, thereby avoiding cell reversal, then charging the cells in series

    Common rechargeable battery types:

    Li-ion Battery

    • Graph of mass and volume energy densities of several secondary cells

    Nickel-cadmium battery (NiCd):

    • Created by Waldemar Jungner of Sweden in 1899, based on Thomas Edison's first alkaline battery[citation needed]. Using nickel oxide hydroxide and metallic cadmium as electrodes. Cadmium is a toxic element, and was banned for most uses by the European Union in 2004. Nickel-cadmium batteries have been almost completely superseded by nickel-metal hydride (NiMH) batteries.

    Nickel-metal hydride battery (NiMH):

    • First commercial types were available in 1989.[20] These are now a common consumer and industrial type. The battery has a hydrogen-absorbing alloy for the negative electrode instead of cadmium.

    Lithium-ion battery:

    • The technology behind lithium-ion battery has not yet fully reached maturity. However, the batteries are the type of choice in many consumer electronics and have one of the best energy-to-mass ratios and a very slow loss of charge when not in use.

    Lithium-ion polymer battery:

    • These batteries are light in weight and can be made in any shape desired.

    Battery Capacity:

    • Look for batteries with a higher milliampere hour (mAh) rating. This refers to the amount of electricity delivered at any given moment. Electronic devices can handle a range of mAh without damaging the device. So as the rechargeable batteries begin to lose power, they do no damage to the device. Batteries with a higher mAh may look exactly like a battery with a lower mAh but typically they cost more.

    Battery Chargers:

    • Buy the battery charger that suits your needs. In some instances you can purchase the charger and batteries as a package deal, but if you want your battery charger to maintain your rechargeable batteries properly, you may need to pay more for special features.
    • Look for a battery charger that recharges a variety of battery sizes. Select a unit that has a reconditioning cycle. This keeps you from overcharging your batteries. Some models do this automatically while others have a switch you must flip to go into reconditioning mode.

    Warnings:

    • Do use the specialized accesory to recharge
    • The input voltage of any appliance must be in the range of the output of the battery, otherwise it can do harm to the applince
    • To avoid the decending capacity, the battery must not be put away over 1 year
    • Away from high temperature, and kept in cool dry place

    Package Included:

    • 2 x Rechargeable Protected Li-ion Batteries

Customers' Reviews

Overall:
  ( 35 Reviews)
Price:
Quality:
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I have bought this product

bUki

from (Croatia)

Bought this item on

12-18-2012
04:42:48 12-18-2012 very good Overall:  
  • Pros: these pair of batteries is very cheap compared to competition, it seems the power is matching the declared one.
  • Cons: ok let me think for a second...no, there is absolutely nothing to mention here
  • Other Thoughts: ideal as a backup pair of batteries for my new flashlight

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20 DinoPoint gained for this post

Andrew

from (Izh, Russia)

Bought this item on

10-03-2012
05:42:49 10-03-2012 best batteries by reviews Overall:  
  • Pros: It have original trustfire hologram on the wrapper. It climbs in OEM battery charger well.
  • Cons: has not yet found.
  • Other Thoughts: I chose this batteries because they have highest rating by reviews. I will use this with flashlight.

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20 DinoPoint gained for this post

NYuri

from (Russia)

Bought this item on

09-18-2012
08:40:46 09-18-2012 TrustFire 18650 2400mAh Overall:  
  • Pros: Хорошее качество изготовления, одни из немногих китайских аккумуляторов с почти чесной указанной ёмкостью. Почти год работают без нареканий.
  • Cons: Цену можно и пониже, на бакс дороже можно уже и Sanyo купить.
  • Other Thoughts: None!

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Makap

from (Russian Federation)

Bought this item on

04-04-2012
21:10:33 04-04-2012 Inexpensive and quality batteries Overall:  
  • Pros: 1. Corresponds to the declared capacity, and even slightly higher 2. The presence of protection
  • Cons: No
  • Other Thoughts: I bought two of these batteries. The actual capacity after five charge-discharge cycles was 2450 mAh and 2480 mAh. I think that this is an excellent result!

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John

from (Palo Alto)

Bought this item on

03-08-2012
10:54:33 03-08-2012 Great reliably high capacity battery Overall:  
  • Pros: Good quality protected battery for an excellent price. You get two of them!
  • Cons: Only two. Can never have enough batteries!
  • Other Thoughts: This is probably the most popular 18650 battery in the world. Flashlight fanatics swear by these.

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Bella

Bought this item on

03-05-2012
00:00:00 03-05-2012 just arrived! Overall:  
  • Other Thoughts: The product was easy to find on this site, it was very reasonably priced!

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Angela

Bought this item on

02-22-2012
00:00:00 02-22-2012 Wonderful Product Overall:  
  • Other Thoughts: It arrived exactly when they said it would. Thank you for such prompt and courteous service!

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Hill

from (East Coast)

Bought this item on

02-19-2012
10:47:28 02-19-2012 Good quality 18650 Overall:  
  • Pros: Bought these based on favorable reviews at BLF. They came in great shape and have performed as expected. Charge to 4.2V and drive an XML to max output.
  • Cons: None.
  • Other Thoughts: Great battery for the money. Much less than AW brand but perform just as well.

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Katerina

from (Russia)

Bought this item on

02-12-2012
  • Pros: Excellent lithium-ion batteries. The actual capacity. Are protected. Sold a couple.Low internal resistance. Suitable for my lights.
  • Cons: no
  • Other Thoughts: These are the best batteries I've seen. I'll buy them in the future.

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Zebulon

Bought this item on

02-08-2012
00:00:00 02-08-2012 Sturdy and cute Overall:  
  • Other Thoughts: I was very surprised to saw this battery came in retail packaging. This is the first for me.

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