Some chemistries are able to cycle thousands of times before reaching 80% of their capacity. HiQuick 18650 Battery Charger, Universal Intelligent LCD Screen Battery Charger, for IMR/ICR Li-ion 18650 18500 18350 26650 21700 20700 22650 Rechargeable Batteries 4.4 out of 5 stars 164 £12.99 £ 12. In optimal conditions, your cells may achieve more than 500 cycles. If you go over the maximum discharge current limit (A) you can decrease the cycle life all the way down to 50 cycles. When in high-amp or high-drain situations, this can decrease substantially to 200 cycles. Most modern 18650 batteries have a typical cycle life of 300 - 500 (charge, discharge cycles). How many cycles does a typical 18650 battery have? (80% of 3000 is 2400) so when the cell reaches a capacity of 2400 mAh we say its cycle life is over. So if we take a 3000mAh cell, when do we say its life has ended? When this percentage reaches 80%, we say the cycle life has ended (even though you may get a few thousand more cycles out of your battery). 2900 mAh is 96% of the original capacity.

For example, if your cell started at 3000mAh, but now only has 2900mAh.

To charge an 18650, you should use a special charger for lithium-ion cells.Ĭycle life is determined by the difference in capacity of your cell taken from its first-use rating to its present rating.

You can also use battery testing equipment to discharge a battery. Panasonic, Nitecore, Efest, and many more brands to choose from. These lithium ion rechargeable 18500 batteries provide your high end electronics with all the energy they need. The electricity is drawn from your device, and the battery discharges current. Shop our selection of 18500 Lithium Ion Rechargeable Batteries. House CA listing - Lot of 100 - Sanyo Lithium Ion - 1300mAh Battery - Model UR18500Y.

To be safe, never discharge lower than 3.0V unless you know your cell's specification.ĭischarging occurs anytime you use the battery for power. DUAL INPUT 40A IN-VEHICLE BATTERY CHARGER DC ITECHDCDC40 DCDC.

18650 lithium-ion batteries are charged up to 4.2V and down to between 2V and 3V depending on the cell's specification for cut-off voltage.

When an 18650 battery is charged and discharged, this is counted as one cycle.

18500 battery charger