Samsung Battery ICR18650-26J unprotected

The Samsung ICR18650-26F is a lithium nickel manganese cobalt cell (LiNiMnCoO2). It is a modified successor to the ICR18650-26F and 26H, designed for use in laptops, LEDs, industry, model building, and more. The Samsung ICR18650-26J cell has a capacity of 2600 mAh, a minimum capacity of 2550 mAh, and a nominal voltage of 3.6 V. The charging cutoff voltage is 4.20 V ± 0.05 V, the maximum discharge current is 2C (5.2 A), and the discharge cutoff voltage is 2.75 V. The positive terminal is flat (Flat Top) and the chemistry is LiNiCoMnO2. The dimensions are a diameter of 18.20 mm ± 0.05 mm and a height of 64.80 mm ± 0.05 mm. The weight is 45 g ± 0.01 g.

Safety notes: Lithium cells should only be operated with protective electronics. Please note that lithium cells should only be used by qualified personnel. Improper handling or short circuits can lead to fire or explosion.

Additional features: Lithium-ion batteries are thermally stable and do not suffer from memory effect. They operate on the basis of lithium and are characterized by a high energy density.

Technical specifications for the Samsung ICR18650-26J - 2600 mAh, 3.6 V - 3.7 V unprotected:

Charging current and duration (Normal): 1300 mAh/3 h
Charging current and duration (Fast): 2600 mAh/2.5 h
Operating temperature for charging: 0 °C - 45 °C
Operating temperature for discharging: -20 °C - 60 °C

Notes: A special charger is required for charging lithium-ion batteries, which charges the batteries according to a specific charging procedure (CCCV = constant current, constant voltage). The batteries must not be charged beyond a voltage of 4.2 volts, as this poses a risk of fire and explosion. It is advantageous to charge the batteries only up to about 4.1 volts, as this significantly increases their lifespan or the number of charge cycles (potentially up to doubling). Only lithium-ion chargers should be used for charging.