F.B.I Li-Ion Batteries, Also Called Ion Battery or Lithium Ion Battery.. (3.7 Volt) They Are Frequently Preferred in New Technology Devices Their Greatest Feature They are small, light, high current and high voltage. Li-Ion Batteries can be kept after charging like Ni-Cd Batteries and do not lose capacity in a short time. They are generally not used singly and are used in groups such as Mobile Phones, Various Measuring &Cumulating Devices, Notebooks, etc. It is a dangerous type of battery when used incorrectly. Since Ion Batteries Contain High Capacity, They Should Be Carefully Charged and Protected. They should never be exposed to direct sunlight and should not be opened. There is a risk of explosion and fire. They should be kept away from children. Similar Models: Sanyo: Ur18650f Ur18650y Ur18650a Ur18650w Ur18650s Uf103450p Uf553450z Uf463048f, Uf463443f Uf463443f, Uf383450f, Uf463450f, Uf553436f, Uf553443z, Uf553446z, : Cgr18650af Cgr18650cf Cgr18650cg Cgr18650da Cgr18650e Cgr18650ea Ncr18650 Cga103450a Sony : Us18650gr Us1865g5 Us1865g6c Us1865g7 Us1865g8 Us18650vt 453759a9h 454261a8t, Sdi: Icr18650- 28a Icr18650-26c Icr18650-26d Icr18650-24e Icr18650-22e Icr18650-22f Icp553450a Icp653450u Lg Chem: Icr18650s3, Icr18650a3, Icr18650a4, Icr18650b2, Icr18650b3, Icp363450, Icp423450, Icp523450 Battery Size: 18650 Voltage: 3.7v Capacity Mah: 2.200 Mah