18650 Battery Li-ion Rechargeable 3.7V Cells

18650 BATTERIES

18650 Rechargeable - Li-ion 3.6V-3.7V - Excellent Performance - Long battery life.

High Capacity - High Drain - Can be recharged at any time - No memory effects.

Protected (electronic protection circuit built in) or unprotected cells.
We provide only GRADE A Lithium-ion power cells - highest quality, and dependability by all manufacturing standards.

Choosing the best 18650 battery for your application can be difficult. We can help. Contact us 24/7. 

45 item(s) - Page 1 of 2

18650 Protected 3400mAh Li-ion Rechargeable Battery Orbtronic - For High Performance Flashlights

Best 18650 Battery for Flashlight | Panasonic inside |Dual 10Amp...
$12.99

18650 30A Battery Flat Top High Drain Orbtronic SX30 High Discharge Rechargeable 3.7V Li-ion IMR

High performance 18650 Flat Top IMR High Drain Battery 30A
$6.99

LG HG2 18650 Battery 3000mAh Flat Top INR18650HG2 High Drain 20A 3.7V Rechargeable IMR Brown

LG HG2 18650 20A INR18650HG2 High Drain brown IMR battery. Great 3000mah cell...
$6.00
$4.99

20A-35A 18650 Flat Top High Drain Battery 3000mAh Orbtronic Hybrid IMR

Powerful Flat top 20-35Amps 18650 battery for High Drain devices
$8.50

18650 3500mAh High Drain Button Top Battery Rechargeable 3.7V Orbtronic-Holder included

Powerful high capacity 3500mAh Button Top High Drain 18650 battery li-ion.
$10.99

18650 30A Battery Button Top IMR High Drain 3.7V Rechargeable Li-ion SX30 Orbtronic

30A 18650 battery Button Top high drain Hybrid IMR - High Discharge High...
$6.99

3000mAh 18650 Battery 20A-35A Li-ion 3.7V Button Top Rechargeable High Drain H-IMR - Orbtronic

Powerful button top 20A-35A 18650 high drain Orbtronic li-ion battery.
$8.75

Samsung 35E 3500mAh 18650 Flat Top Battery INR1865035E

Samsung 35E high discharge 18650 battery
$7.00
$6.50

3500mAh 18650 High Drain Hybrid IMR Rechargeable Battery 3.7V Flat Top Orbtronic

New 18650 IMR High Drain Battery 3500mAh from Orbtronic Flat or Button top.
$9.99

LG HB6 18650 30A IMR Battery Flat Top High Drain 1500mAh

LG HB6 18650 30A pink is the latest, improved high drain IMR battery(much...
$5.99
$4.59

Sony VTC5 18650 Battery IMR High Drain 2600mAh Flat Top US18650VTC5

Sony VTC5 18650 Battery US18650VTC5 High Drain IMR Authentic Made in Japan.
$6.50
$5.50

UR18650NSX Panasonic-Sanyo 18650 Battery Li-ion High Drain IMR 3.7V Rechargeable

High Drain IMR Panasonic-Sanyo UR18650NSX 18650 3.7V liion
$5.99
$4.99

18650 PROTECTED 3100mAh Li-ion Rechargeable Orbtronic-Panasonic Battery-Button Top

Protected 3100mAh Panasonic 18650 NCR18650A Battery Cell by Orbtronic. Inside...
$9.97

18650 battery 22A IMR Orbtronic SX22 Rechargeable Li-ion - Button Top or Flat Top

18650 battery IMR High drain High discharge button flat top
$5.99

IMR 18650 2500mAh High Drain ORB25 rechargeable 3.7V Battery

H IMR 18650 2500mAH High Current 31A | 21A Battery ORB25 by Orbtronic | for...
$5.75

Sony VTC6 18650 Battery 3000mAh Flat Top US18650VTC6 Hybrid IMR High Drain

Sony VTC6 perfect 3120mAh battery for high drain applications.
$8.99
$7.00

LG HE4 18650 battery 3.7v 2500mah Flat top IMR High Drain - Batt. Holder Included

LG HE4 high drain 18650 IMR Li-ion battery 3.7V, flat top | Case included
$5.00
$4.29

Samsung 30Q 18650 Battery 3000mAh INR18650-30Q Rechargeable Flat Top

Samsung 30q 18650 high drain battery excellent performance under high loads.
$6.00
$4.99

Panasonic 3400mAh 18650 Li-ion 3.7v Battery NCR18650B Flat Top

Panasonic New NCR18650B 18650 li-ion battery cell 3400 mAh.More powerful than...
$6.00
$5.75

LG MJ1 3500mAh 18650 Li-ion Battery INR18650-MJ1 Flat Top High Drain (Battery Holder Included)

LG MJ1 High Drain 18650 battery from LG Chem, 10A good for high discharge...
$6.99
$5.50

NCR18650GA Panasonic-Sanyo 18650 3500mAh Li-ion High Drain Battery Flat top

NCR18650GA The newest 18650 high drain battery 3500mAh from Panasonic-Sanyo
$8.75
$7.50

18650 Battery Panasonic NCR18650BE 3200mAh li-ion 3.7V flat top - case included

18650 affordable high capacity 3200mAh battery based on Lithium-ion...
$7.59
$6.99

Panasonic NCR18650PF 18650 10 Amp. 2900mAh Hybrid IMR Li-ion Rechargeable Battery - Flat Top - High Drain

NCR18650PF 18650 Panasonic 2900mAh High Drain Battery.
$5.70
$4.99

18650 battery (any lithium ion cell) user should have sufficient knowledge on how to safely: use , maintain , charge , discharge , store , Li-Ion rechargeable batteries.

All Batteries Are Sold Individually | Price listed is per one cell | Unless Stated Otherwise. 

18650 rechargeable battery

Rechargeable Lithium-ion Batteries- Safety

The below safety guide applies to all unprotected li-ion (lithium-ion) battery cells.

You must carefully read, and comply with the safety instructions and precautions in this Safety Instructions guide before charging, using your battery.

Failure to read, and follow Li-ion safety instructions and warnings may result in personal injury, fire, and property damages if the battery is charged and/or used improperly.

 

  • DO NOT SHORT CIRCUIT. Short circuits may cause fire, and injury!

  • Charge battery fully to 4.2V before first use.

  • Use high-quality charger specifically designed to charge Li-ion batteries.

  • Do not charge unattended.

  • Always keep your battery that is not in use inside plastic battery holder.

  • Do not keep bare batteries in your pocket, purse, or anywhere together with other metal (conductive) objects.

  • Never attach any metal moving part |magnet| to the top-positive or the bottom-negative battery contact.

  • Stop using the battery with damaged PVC tube (wrap) or terminal insulator immediately.

  • If the battery is damaged in any way stop using it immediately.

  • Never discharge a Li-ion battery at a rate exceeding the maximum discharge current specified for that battery.

  • Never use force to install (insert) li-ion battery.

  • Do not use old, and new batteries together.

  • Do not solder directly onto the battery.

  • Do not immerse in any liquid.

  • Do not drop the battery. Always keep it in a plastic protective holder.

  • Do not place the battery in high-pressure containers, microwave ovens,or on induction cookware.

  • Immediately discontinue use of the battery if, while using, charging or storing the battery, the battery emits an unusual smell, feels hot, changes color or shape, or appears abnormal in any other way.

  • Do not carry, or store the batteries together with hairpins, necklaces, or other metal objects.

  • Use only high-quality battery Li-ion charger (CC/CV 4.2V max).

  • Do not expose to heat.

  • Do not disassemble, or modify the battery.

  • Keep the battery away from children, and pets.

  • Never charge, or store the batteries inside your car in extreme temperature. Extreme temperatures (low or high) might ignite the battery, and cause a fire.

  • Do not short (connect) positive, and negative battery terminals (contacts) intentionally, or unintentionally.

  • Never charge the battery over 4.25V (properly charged li-ion battery is 4.2 Volts / full charge).

  • Do not reverse the positive (+) and negative (-) terminals when charging, or using the battery.

  • Never charge the battery at a current exceeding manufacturer-specified charging current.

  • Do not expose the battery to water or salt water, or allow the battery to get wet.

  • You must verify polarity before connecting the battery to the host device (or charger).

  • Never completely discharge li-ion batteries ( below 2.5V under load ).

  • After the battery is discharged-don't leave it discharged-charge battery as soon as possible (10 min. rest time).

  • It is your responsibility to determine that your charger and host device works properly.

  • On (battery electrolytes) exposure to skin, flush with water immediately.

  • If eye exposure occurs, flush with water for 15 minutes, and seek emergency care immediately.

 

What is short circuit?

The situation when battery positive (+) and negative (-) connect. The current will become extremely high because there is no resistance in the path to limit current flow. A short circuit will result in dangerously high temperature which may cause a fire.

Warning:

If mishandled or mistreated, Li-ion batteries can cause you SERIOUS INJURY.

About Lithium-ion
 
In the world of Lithium Rechargeable Batteries, guides and descriptions below will come in handy and expand knowledge base and horizons for those wandering around and trying to navigate themselves through the vast number of abbreviations (e.g. li-ion, 18650, 26650, 14500 ...), and terms not familiar with — related to these unique and powerful Li-ion must haves, used in many high drain-low capacity, and low drain-high capacity applications. 
 
Lithium-ion Rechargeable Batteries are a special breed packed with amazingly powerful energy that provides dramatically increased longevity, low self-discharge, efficiency and optimized usage time. 
 
When you think of batteries you might first think of what you’ve been faced with most in the store aisles. First come to mind widely used AA or AAA size batteries; however, AA or AAA are old technology, and can’t match the power of Lithium-ion Batteries. 

By the way, most popular li-ion battery sizes are: 18650, 14500, 16340 (RCR123A), 26650
 
Characteristics 
 
What is Lithium?! 
 
Lithium is a soft, silver-white metal. Lithium is the lightest, and the least dense solid element which is so light that floats on water (less dense than water). Lithium never occurs freely in nature. Instead, it typically can be found in the form of ionic compounds. Belonging to a group of alkali metals, lithium is subsequently highly reactive and flammable. Advantage of these characteristics also gives it tremendous electrochemical potential evident in very high energy and power densities. 
 
 
What is li-ion battery chemistry (Chemical Structure)?


Chemistry is the main force behind the power of li-ion batteries. 

Cells that batteries contain are electrochemical units containing electrodes, separators, and electrolytes (in most cases protected with a small electronic circuit). 
When going into more specific details of chemical composition of batteries, you will discover that the typical Lithium-ion cells use graphite and other carbon materials for its anodes. Also, their cathodes are Cobalt-based Lithium Cobalt dioxide LiCoO2 or Lithium Manganese LiMn2O4. On the other hand, lithium salts, such as LiPF6, LiBF4 or LiClO4, in an organic solvent, are the basis for the electrolytes. 

This is only a part of the answer to the question, what the chemicals are used in li-ion batteries. Most popular, and widely used is 18650 battery.More details to follow on our blog. 

 
Applications: 
 
There is a diverse and widespread use of lithium-ion rechargeable batteries. Starting from high popularity in consumer portable electronics (laptops, tablets, cell phones, cameras, torches, power tools etc.) to a rising popularity among battery operated vehicles (aircraft, electric cars, golf cars, hybrid vehicles, electric wheelchairs etc.) demand for Lithium rechargeable batteries spans aerospace technologies as well (radio-controlled models, model aircraft, the Mars Curiosity rover etc.). 
 
History: 
 
Many less practical chemical variations of different batteries have been introduced prior to being developed into Lithium-based rechargeable batteries. Chemical dilemmas and obstacles of 1970’s were resolved by replacing metallic lithium with only lithium compounds which were capable of accepting and releasing lithium ions. Research and development has continued throughout the years reaching some major milestones in 1980’s further perfecting electrochemical interaction and design into 1990’s first Li-ion battery. Nowadays we see the results in its peak of capacity and performance on Lithium-based rechargeable batteries market. With advancements in research and development and contributions to tremendous upgrades and improvements to quality and performance of Lithium rechargeable batteries, the application and the usage of this energy packed power cells has gained widespread acceptance and likewise consumption. 
 
Advantages: 
 
What differs Lithium rechargeable batteries from others are advantageous and unique properties and characteristics such as: 

  • High (fully charged 4.2V and nominal 3.6V or 3.7V) voltage allows Li-ion battery packs with only one cell. 
    That finally makes our job easier: lower number of cells needed, and much less interconnections between lithium-ion cells for high voltage rechargeable battery packs. 
    Specifically, high cell voltage of 3.6 V (fully charged 4.2V) means that one Lithium-ion battery cell can replace three NiCd batteries (Nickel anode-Cadmium cathode) or NiMH (Nickel–metal Hydride battery) cells whose voltage is 1.2 V.
  • Lithium based batteries have very high energy density — with increasing potential for even higher capacities. By the end of 2017 we will probably see new Panasonic 3800mAh 18650 cell.
  • Almost non-existent, extremely low self-discharge rate. Pre-charged to 3.7V (long term storage charge level) battery can stay at that discharge level for up to five years. Comparing to Ni-Cd and NiMH self-discharge is less than 50%.
  • Low Maintenance — no scheduled refreshing/cycling (charging, discharging to refresh battery) is needed to extend battery life. No memory effects. Li-ion cells do not require costly maintenance to verify their high performance. For example Ni-Cd cells need periodic "refreshing" (discharge-charge cycling) to make sure no memory effect happen.
  • Many different sizes of Li-ion batteries are available
  • Rechargeable li-ion batteries are lightweight.
  • Li-ion battery can be custom made for high capacity, or high discharge rate.
  • Can be discharged at very high C rate (High discharge rate - High Drain).
  • 18650 battery is most popular rechargeable 3.7V li-ion size today.