3.7V 1200mAh 18350 XSL Rechargeable Li-ion Battery 2 Pcs

Specifications:

• 100% brand new UltraFire battery
• 3.7V 18350, each capacity 1200mAh
• Low discharge rate, no memory effect
• This Li Ion Rechargeable Battery Pack is with low reoccurring operation cost
• Environmental friendly, rechargeable Li ion battery with re/discharging protection circuit
• Voltage: 2.75-4.20V
• Charge Maximum Operating Current: 3.2A
• Size: 35 x 18mm / 1.38 x 0.73in(L x Dia.)

Details:

• This rechargeable Li ion battery is renewable and reusable and provides you with 1200mAh capacity

• This rechargeable Li ion battery is with recharging and discharging protection circuit, so it is environmental friendly

Size in Detail:

NOTE:

• DO NOT dispose in fire or heat
• DO NOT puncture, damage, and disassemble
• DO NOT mix fresh batteries with used batteries

What is lithium-ion batteries?

 

Lithium-ion batteries (sometimes abbreviated Li-ion batteries) are a type of rechargeable battery in which a lithium ion moves between the anode and cathode. The lithium ion moves from the anode to the cathode during discharge and in reverse, from the cathode to the anode, when charging. Lithium-ion batteries can be formed into a wide variety of shapes and sizes so as to efficiently fill available space in the devices they power. They're generally much lighter than other types of rechargeable batteries of the same size. The electrodes of a lithium-ion battery are made of lightweight lithium and carbon. Lithium is also a highly reactive element, meaning that a lot of energy can be stored in its atomic bonds. This translates into a very high energy density for lithium-ion batteries. Plus there is no issue with the memory effect, like the nickel-cadium does. When a nickel-cadium battery is recharged before it discharges the majority of its power, it essentially "forgets" that it could fully discharge to begin with. This problem is termed the memory effect.

What is lithium ion polymer rechargeable battery?

It's a high energy density, 3.6V/3.7V battery that is not compatible with ordinary batteries, but is widely used in the portable equipment market. It uses lithium metallic oxide (LixCoO2, LiNiO2, LiMnO4) in its positive electrode (cathode) and carbon material (LiXC6) in its negative electrode (anode), with electrolyte LiPF6, LiAsF6 etc, and the Lithium ions inside the battery transfer between the positive electrode and the negative electrode during charge or discharge, namely Rocking Chair Batteries (RCB).

Lithium ion polymer rechargeable battery similar to the Lithium-ion but with a solid polymer as electrolyte. Some gelled conductive material is added to promote conductivity. It utilizes the latest technology to become available for consumer use in products such as portable computers, PDA, cellular phones, blue tooth, portable DVD and military electronics etc. Lithium-ion polymer batteries have high voltage per cell, and excellent energy on both a weight and volume basis. Additionally, they can be made in very thin and large footprint configurations. Lithium-ion polymer batteries use liquid Lithium-ion electrochemistry in a matrix of conductive polymers that eliminate free electrolyte within the cell. For operating effectively over a broad range of temperatures and conditions, Lithium-ion polymer batteries contain no metallic Lithium anodes.

About Rechargeable Batteries

• Function
• Sometimes called a storage battery, a rechargeable battery consists of multiple cells. This enables the electrochemical reaction that powers the battery to be reversed. Using a charger, these batteries can be recharged many times. Rechargeable batteries are used in automobiles, consumer electronics, storage for solar arrays and electrical vehicles.
• Types
• The most common types of rechargeable batteries are lead-acid, nickel cadmium, alkaline, nickel metal hydride and lithium ion. Lithium ion batteries are considered the most advanced rechargeable battery type and are used in most contemporary consumer electronics.
• Size
• Rechargeable batteries come in many shapes and sizes from automobile lead-acid type batteries to laptop and small digital camera batteries. The size is determined by the type of technology used and the design of the device in which the battery will be placed.
• Features
• The main feature of a rechargeable battery is self-evident--it can be charged multiple times. Secondary features that differ depending on the type of battery include:
• Self-Discharge: This effect occurs within the battery cells causing the battery to lose power over time even when not in use.
• Memory Effect: An effect mostly witnessed in Nickel Cadmium batteries, the battery seems to lose its maximum energy capacity if charged multiple times without being fully discharged.
• Energy-to-Mass Ratio: This refers to the energy density of the battery.
• Currently, Lithium ion batteries are the best performing rechargeable batteries if considering the above features.
• Considerations
• Many people avoid rechargeable batteries when given a choice because of a perceived higher cost. When you consider that rechargeable batteries can be reused multiple times, the savings of using them as opposed to one use batteries becomes clear

Lithium Ion Battery Advantages:

• Energy Output. Lithium-ion batteries store more power than other rechargeable batteries, according to Greenbatteries.com. On average, rechargeable Nickel Cadmium (NiCd) or Nickel Metal Hydride (NiMH) batteries that offer 1.2volts of energy are outdone by Lithium-ion batteries of the same weight and size with an output of 3.7volts. The electrochemical potential of lithium-ion batteries provides the largest energy density by weight according to Isidor Buchmann, CEO of Cadex Electronics Inc. of Canada.
• Long Storage Life. During storage, NiCd and NiMH batteries can loose 1 to 5 percent of their stored power each day, even when not installed in electronic devices. Lithium-ion batteries tend to retain their energy, even after months of storage. Lithium-ion batteries are preferred for travel for this reason. Many sets of batteries can be prepared before the trip and even the last set will be fresh and ready to go after days of storage.
• Low Maintenance. Since lithium-ion batteries retain no "memory" of power from previous charging cycles, they can be fully re-fueled during a charging cycle. Some rechargeable battery types retain small pieces of information that waste valuable energy storage space and over time make the rechargeable battery hold less of a charge. Storing lithium-ion batteries with at least a 40 percent charge is recommended by Cadex Electronics Inc. of Canada. This adds years to the usual two- to three-year life span of the battery.
• Environmentally Friendly. Since lithium-ion batteries can be used repeatedly, they create less waste than standard disposable batteries that are tossed in the garbage after depletion. Once lithium-ion batteries have expired, simply place them on a lithium-ion battery charger and allow them to be re-filled with power. After years of use, or when a lithium-ion battery is damaged, it can be recycled. Since lithium-ion batteries contain no liquid electrolyte, there is no risk of chemical burns from a damaged battery

Package Included:

• 2 x UltraFire XSL 18350 1200mAh 3.7V Rechargeable Batteries