A cell specifically designed for power tools. Also suitable for Bosch IXO cordless screwdrivers. Samsung INR18650 20R power tool cell. Capacity 2000mAh. Minimum capacity measured at 5A is 1960mAh. Nominal voltage 3.6V - 3.7V. Charge termination voltage 4.2V ± 0.05V. Discharge termination voltage 2.5V. Maximum discharge current 10C = 22A. No protection electronics. Flat positive terminal (Flat Top). Diameter 18.2 mm ± 0.1 mm. Height 64.7 mm ± 0.15 mm. Weight 44 g ± 1 g. Charging method CC-CV. Tested by BudgetLightForum. Safety notes: Lithium cells must only be operated with protection electronics! Please note that lithium cells may 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 high energy density. Technical specifications for "Samsung INR18650 20R 2000mAh 3.6V - 3.7V power tool cell": Charging current and duration (Normal) 1000mAh/3h. Charging current and duration (Fast) 4000mAh/1h. Operating temperature for charging 0 °C - 45 °C. Operating temperature for discharging -20 °C - 60 °C. Notes: Charging lithium-ion batteries requires a special charger that charges the batteries using a specific charging method (CCCV = constant current, constant voltage). The batteries must not be charged above 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 approximately 4.1 volts, as this significantly increases the lifespan or number of charge cycles (potentially up to doubling). Only lithium-ion chargers should be used for charging. However, inexpensive chargers often have the disadvantage that they do not reliably shut off after the charging process is complete.