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8 Slot Smart Charger with 8 3.7V 2000mAh Li-MN 18650 IMR Battery Combo

  • Brand :  
  • Exell Battery
  • Rechargeable :  
  • Yes
  • Output Voltage :  
  • 3.7V
  • Amperage :  
  • 2000mAh
  • Charge Rate :  
  • 1 ~ 3CmA
  • Chemistry :  
  • Li-MNO2
  • Battery Size :  
  • 18650
  • Length :  
  • 2.55" (64.77mm)
  • Width :  
  • 0.71" (18.03mm)
  • Terminal Type :  
  • Button Top
  • Country of Manufacture :  
  • China
  • Model Number :  
  • EBLI-18650C20BT_8_EB-HP-096_1
  • UPC :  
  • 813662025034

List Price: $79.99
You Save: 25% off
 Special Price: $59.95


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8 Slot Intelligent Charger with 8 Exell IMR 18650 3.7V LiMN 2000mAh Rechargeable High Capacity Button Top Battery Combo

Intelligent Battery Chargers are an ideal battery charging system for many different size batteries. This charger supports Lithium Ion (Li-Ion) Nickel Metal Hydride (NiMH) and NIckel Cadium (NiCD) batteries. This high quality intelligent battery charger has independent slot controls to prevent over charging of your batteries ensuring that you get the most life out of them. This charger even has a USB slot for connecting your mobile device or tablet for recharging without having to worry about taking up an outlet. With the many variety of batteries that this charger supports its an ideal device for your home or office.

Intelligent Battery Charger Features:

  • Adopt negative voltage control technology to improve charge efficiency
  • Two sets of led indicators (each set containing 3) show idependently when charging, making the charging process visible status and stopping once completing charge intelligently
  • Protect opposite connection and short circuit; 0 voltage alarms
  • Activate automatically for Li-ion battery
  • Temperature protection: Stop charging automatically if the temperature of charger or battery gets too high when charging
  • Stainless steel rail is more durable and smooth
  • Worldwide voltage, suitable for the whole world
  • USB 5V Output Mode (used as Portable Charger for mobile or pad etc.)
  • Microcomputer IC controls charging process: CC/CV Trickle charging to make sure the battery is fully charged and wont over charge. Each slot is controlled independently for mixed charging modes
  • The Exell 18650 3.7V LiMN 2000mAh Rechargeable High Drain Button Top Battery is an ideal replacement battery for many of todays in demand applications such as E-Cigarettes also known as MODS, Vaporizers or Vape products as well as high intensity LED flashlights and Solar Lamps used in gardens and walk ways.This LiMN battery has three-dimensional tunnels that enable rapid diffusion of Li+ through LiMn2O4 particles, and therefore lithium-ion cells made with this material can have better theoretical drain rate capability. Conventional lithium-ion cells use LiCoO2 or variations of that material. Cells with LiCoO2 cathodes are typically designated with the term "ICR". The LiCoO2 type materials have a layered crystal structure that only enables 2D diffusion within the layers, so the overall Li+ diffusion rate is slower.

    Li-MN batteries have a lower crystalline density and therefore a lower inherent capacity (mAh/ml) than LiCoO2. If you do a direct replacement of LiCoO2 with LiMn2O4, the capacity of the cell will be reduced by ~15%. But here is the interesting thing: simply doing a direct replacement with LiMn2O4 will not significantly increase the rate capability of a cell. In order to get a real increase in rate capability, you need to design a cell with higher electrode surface area and thinner electrodes because Li+ diffusion in the cathode particles is not the only bottleneck to getting current out of the cell. Using thinner electrodes further reduces the capacity of the cell because you will have a higher fraction of "inert" materials like the separator and current collector. This is why IMR cells typically have ~40% lower capacity than their ICR cousins.

    Exell 18650 3.7V 2000mAh LiMN Battery Specifications:

  • Voltage: 3.7V
  • Amperage: 2000mAh
  • Battery Size: 18650
  • C Rating Charge Rate: 1 ~ 3C
  • Type: Lithium Manganese (LiMN)
  • Length: 2.55 (64.77mm)
  • Weight: 0.1lbs (1.6oz)
  • Width: 0.71in (18.03mm)
  • Terminal Type: Button Top
  • Exell LiMN Battery Warning:

  • Do not overcharge or overdischarge
  • Recharge drained batteries immediately
  • Do not short circuit
  • Do not dispose of in fire
  • Do not expose to extreme heat or water
  • Please be familiar with handling lithium-ion batteries before purchase
  • Exell 18650 3.7V 2000mAh LiMN Battery Applications:Solar Lighting, Home Security Systems, Digital cameras, Electronic Cigarettes, E-CIG, MODS, Vape, Vaporizer, GPS, Digital calipers, calculators, electronic clocks, medical equipment, measuring instrument, sensors, radio transceiver, and many other electronics.

    Exell 18650 3.7V 2000mAh LiMN Battery Safety and Reliability Information:

    An additional property of LiMn2O4 is that it cannot be overcharged. When a "true" IMR cell is charged beyond ~4.25 V, no additional capacity will go into the cell. The voltage will simply spike. This is exactly the same case for LiFePO4 cells. Cells that use LiCoO2 and its layered-metal oxide cousins can be overcharged, leading to significant safety issues when these cells are charged above their specified voltages. Cells with LiMn2O4 and LiFePO4 cathodes can be damaged by overcharging (oxidation of the electrolyte leads to increased internal resistance, loss of capacity and shorter cycle life), but overcharging to higher voltage does not make them less safe. This inability to overcharge, combined with the lower total energy density, is why lithium-ion cells with LiMn2O4 and LiFePO4 are generally considered to be "safer".

    The last property of LiMn2O4 is that in its pure form it tends to have very poor cycle life. There has been a tremendous amount of research that has gone into improving the stability of LiMn2O4 to improve the cycle life of IMR cells, and this has produced cells with reasonably good long term performance. However, the easiest way to get great cycle life out of LiMn2O4 is to blend it with a separate cathode material that contains nickel. This includes the layered cathode materials Li(Nix,Cox,Mnx)O2 (aka NCM or 333), Li(NixCoyAlz)O2 (aka NCA) and Li(NixCoy)O2 (aka NCO). I won't bore you with the details, but it turns out that the oxides containing nickel acts to change the local chemistry around the LiMn2O4 particles and helps to improve stability.

    Note: We ship Li-Ion Batteries in accordance with U.S. Department of Transportations CFR 49. This may mean additional shipping charges in which case you will be contacted within 48 hours. If you have any questions please contact us directly.



    This battery was added to our catalog on Friday 31 July, 2015. - #16295

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