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ZOP Power

11.1V 20C 1800mAh Li-poly Battery for RC Helicopter

Digg(100) ( 8 Reviews)
       
US $24.99
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To give your RC helicopter constant power supply, we strongly recommend this ZOP Power 11.1V 20C 1800mAh Li-poly Battery for RC Helicopter to you!Adopt advanced technology, with excellent workmanship, the 1800mAh Li-poly Battery is safe to use. The 1800mAh Li-poly Battery is made of high quality material, durable and reliable for long time use. And the 1800mAh Li-poly Battery is easy to install into your RC helicopter, plug and play! High quality, Light Weight, long lasting and high capacity. Compact but great in performance, best RC Helicopter Battery for you, do not miss it; do not miss the chance to have better flying time!
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Product Description

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  • Specifications:

    • 100% brand new and high quality
    • High quality, Light Weight, long lasting and high capacity
    • The 1800mAh Li-poly Battery is great for RC planes, helicopter etc
    • Good choice for you
    • Capacity: 1800mAh
    • Voltage: 11.1V
    • Discharge Rate: 20C
    • Size: 92 x 30 x 23mm/3.6 x 1.2 x 0.9in(L x W x H)

    Details:

    ZOP Power 11.1V 20C 1800mAh Li-poly Battery for RC Helicopter

    • The 11.1V 20C 1800mAh Li-poly Battery is great for RC planes, helicopter etc.

    Li-poly Battery

    RC Helicopter Battery

    • The 1800mAh Li-poly Battery is easy to install on your helicopter, plug and play

    1800mAh Li-poly Batter

    ZOP Power 11.1V 20C 1800mAh Li-poly Battery for RC Helicopter

    • Made of high quality material, the RC Helicopter Battery is durable and reliable for long time use

    NOTE:

    • The highest charge voltage is 12.6V, and the charge current can not exceed 1.0A
    • Non-special charger is not allowed use
    • Improper usage can cause explosion of fire
    • Do not bump, disassimble, short circuit and put the batteries in fire, stop using when it expands or the temperature is over 70℃
    • Put the battery in a place that infants or kids can not get it
    • The above suggests the danger of the battery. The user is fully responsible to the result of using this pack

    Safety issues and regulation:

    Li-poly Battery

    • The computer industry's drive to increase battery capacity can test the limits of sensitive components such as the membrane separator, a polyethylene or polypropylene film that is only 20-25 µm thick. The energy density of lithium batteries has more than doubled since they were introduced in 1991. When the battery is made to contain more material, the separator can undergo stress.

    Ingestion and choking hazard:

    • Button cell batteries are attractive to small children and often ingested. In very small children, they are a choking hazard. Lithium coin batteries lodged in the esophagus should be removed immediately. Leakage, chemical burns and potential perforation can occur within hours of ingestion.

    Rapid-discharge issues:

    • Lithium batteries can provide extremely high currents and can discharge very rapidly when short-circuited. Although this is useful in applications where high currents are required, a too-rapid discharge of a lithium battery can result in overheating of the battery, rupture, and even explosion. Lithium-thionyl chloride batteries are particularly susceptible to this type of discharge. Consumer batteries usually incorporate overcurrent or thermal protection or vents in order to prevent explosion.

    Air Travel:

    • Because of the above risks, shipping and carriage of lithium batteries is restricted in some situations, particularly transport of lithium batteries by air.
    • The United States Transportation Security Administration announced restrictions effective January 1, 2008 on lithium batteries in checked and carry-on luggage. The rules forbid lithium batteries not installed in a device from checked luggage and restrict them in carry-on luggage by total lithium content.
    • Australia Post prohibited transport of lithium batteries in air mail during 2010.

    Lithium batteries and methamphetamine labs:

    • Unused lithium batteries provide a convenient source of lithium metal for use as a reducing agent in methamphetamine labs. Some jurisdictions have passed laws to restrict lithium battery sales or asked businesses to make voluntary restrictions in an attempt to help curb the creation of illegal meth labs. For example a newspaper article from January 2004 reports that Wal-Mart stores limit the sale of disposable lithium batteries to three packages in Missouri and four packages in other states. However, the heavy demand for lithium batteries for use in modern, current-hungry devices such as digital cameras conflicts with such restrictions. Via internet retailers, such restrictions can usually be bypassed with little effort.

    The Advantages of Lithium-ion battery:

    • Wide variety of shapes and sizes efficiently fitting the devices they power.
    • Much lighter than other energy-equivalent secondary batteries.
    • High open circuit voltage in comparison to aqueous batteries (such as lead acid, nickel-metal hydride and nickel-cadmium). This is beneficial because it increases the amount of power that can be transferred at a lower current.
    • No memory effect.
    • Self-discharge rate of approximately 5-10% per month, compared to over 30% per month in common nickel metal hydride batteries, approximately 1.25% per month for Low Self-Discharge NiMH batteries and 10% per month in nickel-cadmium batteries. According to one manufacturer, lithium-ion cells (and, accordingly, "dumb" lithium-ion batteries) do not have any self-discharge in the usual meaning of this word. What looks like a self-discharge in these batteries is a permanent loss of capacity (see Disadvantages). On the other hand, "smart" lithium-ion batteries do self-discharge, due to the drain of the built-in voltage monitoring circuit.

    Disadvantages of Lithium-ion battery:

    Shelf life:

    • Charging forms deposits inside the electrolyte that inhibit ion transport. Over time, the cell's capacity diminishes. The increase in internal resistance reduces the cell's ability to deliver current. This problem is more pronounced in high-current applications. The decrease means that older batteries do not charge as much as new ones (charging time required decreases proportionally).
    • High charge levels and elevated temperatures (whether from charging or ambient air) hasten capacity loss. Charging heat is caused by the carbon anode (typically replaced with lithium titanate which drastically reduces damage from charging, including expansion and other factors).
    • A unit that is full most of the time at 25 °C (77 °F) irreversibly loses approximately 20% capacity per year. Poor ventilation may increase temperatures, further shortening battery life. Loss rates vary by temperature: 6% loss at 0 °C (32 °F), 20% at 25 °C (77 °F), and 35% at 40 °C (104 °F). When stored at 40%-60% charge level, the capacity loss is reduced to 2%, 4%, and 15%, respectively

    Internal resistance:

    • The internal resistance of lithium-ion batteries is high compared to other rechargeable chemistries such as nickel-metal hydride and nickel-cadmium. Internal resistance increases with both cycling and age. Rising internal resistance causes the voltage at the terminals to drop under load, which reduces the maximum current draw. Eventually increasing resistance means that the battery can no longer operate for an adequate period.
    • To power larger devices, such as electric cars, connecting many small batteries in a parallel circuit is more efficient than connecting a single large battery.

    Safety requirements:

    • Li-ion batteries are not as durable as nickel metal hydride or nickel-cadmium designs,[citation needed] and can be dangerous if mistreated. They may suffer thermal runaway and cell rupture if overheated or overcharged. In extreme cases, these effects may be described as "explosive." Furthermore, overdischarge can irreversibly damage a battery. To reduce these risks, batteries generally contain a small circuit that shuts down when the battery moves outside the safe range of 3-4.2 V. When stored for long periods, however, the small current drawn by the protection circuitry itself may drain the battery; normal chargers are then ineffective. More sophisticated battery analyzers can recharge deeply discharged cells by slow-charging them to first reactivate the safety circuit and allow the battery to accept charge. Overdischarge can short-circuit the cell, in which case recharging can be unsafe.

    Other safety features are required:

    • shut-down separator (for overtemperature)
    • tear-away tab (for internal pressure)
    • vent (pressure relief)
    • thermal interrupt (overcurrent/overcharging)
    • These devices occupy useful space inside the cells, reduce their reliability[citation needed]; ,and irreversibly disable the cell when activated. They are required because the anode produces heat during use, while the cathode may produce oxygen. These devices and improved electrode designs reduce/eliminate the risk of fire or explosion.
    • These safety features increase costs compared to nickel metal hydride batteries, which require only a hydrogen/oxygen recombination device (preventing damage due to mild overcharging) and a back-up pressure valve.
    • Many types of lithium-ion cell cannot be charged safely below 0°C.

    Package Included:

    • 1 x Li-poly RC Battery

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Jimmy Boucher

Bought this item on

08-17-2011

 
Great product
00:00:00 08-17-2011
Great product and it arrived very quickly. No complaints. Straight forward product and straight forward transaction. Thank you! Would buy from this seller again.
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Pierre Menard

Bought this item on

08-02-2011

 
need tiny fingers, but works
00:00:00 08-02-2011
A nice little helicopter, but since there are no good instructions on proper battery care, I needed this new battery. Now we will be more careful. This fits nicely & works. But takes patience and small fingers to strip the wires and twist them together.
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John H. Gardner

Bought this item on

07-27-2011

 
Battery Replacement a Breeze
00:00:00 07-27-2011
Instead of soldering, just cut the lines that go to the battery already in place about halway along, and just strip a small part and wrap the bare wire around the new batteries exposed wires and wrap in tape. No soldering required. 15 minutes max.
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Leslie Holland

Bought this item on

07-18-2011

 
Replacement battery
00:00:00 07-18-2011
This was a replacement battery for a Syma 107 that had over 100 flights. Hope <br/>the new one lasts as long. Key thing, with these batteries let them cool before <br/>and after charging.
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Eric Lauziere

Bought this item on

07-04-2011

 
Best batteries money can buy
00:00:00 07-04-2011
I have a flashlight that uses 14500 batteries. It is very picky and eats batteries up quick. Well except these. I can't believe how long they last. I have about 20 of these batteries now. Use them in everything. Hardly ever have to charge them. <br/>Love them!!
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leann Evans

Bought this item on

06-28-2011

 
Worthy for what you cost
00:00:00 06-28-2011
I received this 1800mAh Li-poly Battery and inserted it into my camera, it is perfectly match with my camera. Highly recommend. It is worthy for what you cost.
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John Silber

Bought this item on

06-22-2011

 
Good gift
00:00:00 06-22-2011
This is the best 1800mAh Li-poly Battery. It works with my camera perfectly.
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James Gavin

Bought this item on

06-21-2011

 
Durability
00:00:00 06-21-2011
I know that choosing this RC Helicopter Battery is the wise choice, after a long time use, it still looks like a new one.
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