The Samsung INR18650-20R is a powerful 18650 Li-Ion high-current cell with 2000mAh1 capacity and 3.6V nominal voltage. Due to its high current carrying capacity, it is particularly suitable for applications with higher power requirements, for example in power tools, battery packs, torches, modelling projects and as a replacement battery for suitable Bosch IXO cordless screwdrivers.
Depending on the selection, the cell is available with a flat positive terminal (flat top), raised positive terminal, U solder tag, Z solder tag or as an IXO version. Please compare the voltage, design, polarity and connection position with the existing battery before purchasing.
1Nominal capacity: The nominal capacity of a rechargeable battery indicates the amount of electrical charge that it can store and release under specified laboratory conditions. This value is measured at a constant temperature and under defined test conditions in order to create a reliable reference for the performance of the battery. Measurements with standard household devices, e.g. USB measuring devices or chargers with an analyser function, often show lower values, as these work under different conditions and cannot achieve the manufacturer’s laboratory conditions.
2Minimum capacity: The minimum capacity is the minimum value that a battery must reliably deliver under the test conditions specified by the manufacturer. It is specified by the manufacturer and takes into account permissible production-related deviations.
The complete technical data can be found in the “Technical data” tab .
Bosch IXO cordless screwdrivers, provided the design and terminal lugs are suitable
Power tools and power tool battery packs
18650 battery packs with suitable protection and charging electronics
Torches and technical applications with high current requirements
Modelling, DIY projects and repair applications
No selection: Battery cell without additional options, as shown in the main image.
IXO: Version with narrow, spot-welded soldering tabs in U-shape, suitable for many Bosch IXO cordless screwdrivers. The soldering tabs used are approx. 5mm wide, 0.15mm thick and approx. 20mm long.
Plus pole raised: A button is attached to the positive terminal using a special welding process. This raises the flat positive terminal by approx. 2mm.
With solder lugZ: The solder lugs point in opposite directions.
With solder lugU: Both solder lugs point in one direction.
1× Samsung INR18650-20R 18650 Li-Ion battery cell in the selected version
Depending on selection: without option, with raised positive terminal, with U solder lug, with Z solder lug or as IXO version
Note: Supplied without charger, cable, holder or other accessories. The IXO version is not an original Bosch battery, but a suitable replacement cell for compatible Bosch IXO cordless screwdrivers.
Download data sheet Samsung INR18650-20R
Download safety data sheet Samsung INR18650-20R
Technical Data
| Battery model | Samsung INR18650-20R |
| Cell type | Li-Ion high current cell |
| Cell size | 18650 |
| Battery capacity | 2000mAh1 |
| Min. capacity | 1950mAh2 at 10A discharge |
| Nominal voltage | 3,6V |
| Power consumption | approx. 7.2Wh |
| Max. continuous discharge current | up to 22A at 25°C |
| End of charge voltage | 4.20V ± 0.05V |
| Final discharge voltage | 2,5V |
| Protection circuit | None, unprotected industrial cell |
| Versions | Flat top, raised positive pole, U-solder lug, Z-solder lug, IXO version |
| Dimensions | Ø 18.33mm × 64.85mm |
| Weight | max. 45.0g |
| Manufacturer: Samsung | Samsung SDI |
| model | INR18650-20R |
| Cell type (2) | Lithium-ion battery cell |
| Version | Industrial cell / high-current cell |
| Application according to manufacturer | Power tools / power tools |
| Protective circuit | No integrated protective circuit |
| Nominal capacity | 2000mAh1 |
| Minimum capacity / Standard Rated Capacity | 1950mAh2 at 10A discharge |
| Rated voltage | 3,6V |
| Energy | approx. 7.2Wh |
| Final charging voltage | 4.20V ± 0.05V |
| Max. continuous discharge current (2) | 22A at 25°C |
| Initial internal resistance | ≤ 18mΩ, measured at AC 1kHz after standard charge |
| State of delivery | 50 ± 5% State of charge |
| Open circuit voltage ex works | 3.600V to 3.690V |
| Charging method | CC-CV |
| Standard charge | 1A, 4.20V ± 0.05V, 100mA cut-off current |
| Fast charging | 4A, 4.20V ± 0.05V, 100mA cut-off current |
| Charging time Standard charge | approx. 180 minutes to 100mA cut-off current |
| Charging time quick charge | approx. 50 minutes at 25°C up to 100mA cut-off current |
| Charge rate capability | 1A = 100%, 4A = 98% relative capacity |
| Nominal capacity test | Charge 1A / 4.20V CC-CV, discharge 0.2C to 2.5V |
| Standard rated capacity test | Discharge with 10A to 2.5V at 25°C within 1 hour after standard charge |
| Discharge rate capability | 0.40A = 100%, 4A = 97%, 10A = 100%, 18A = 97%, 20A = 95% relative capacity |
| Reference value for relative capacity | 100% = 1950mAh at 25°C and 10A discharge |
| Charging temperature | 0°C to +50°C |
| Recommended charge release | below +45°C cell surface temperature |
| Discharge temperature | -20°C to +75°C |
| Recommended discharge release | below +60°C cell surface temperature |
| Discharge temperature dependence | at 10A: -20°C = 60%, -10°C = 75%, 0°C = 80%, 25°C = 100%, 60°C = 100% relative capacity |
| Temperature dependence charge | at discharge 25°C: 0°C = 80%, 5°C = 90%, 25°C = 100%, 45°C = 95%, 50°C = 95% relative capacity |
| Storage condition according to safety data sheet | at room temperature, approx. 20°C, with approx. 20 to 60% of the nominal capacity |
| Recommended storage voltage | approx. 3.6V to 3.9V per cell |
| Storage temperature 1.5 years | -30°C to +25°C with more than 90% capacity recovery |
| Storage temperature 3 months | -30°C to +45°C with more than 90% capacity recovery |
| Storage temperature 1 month | -30°C to +60°C with more than 90% capacity recovery |
| Diameter | 18.33 ± 0.07mm |
| height | 64.85 ± 0.15mm |
| Standard version | Flat top / flat positive pole, depending on selection |
| Raised positive pole | Optional version with welded button on the positive pole |
| U-shaped solder lug | Optional version with solder lugs in the same direction |
| Z solder lug | Optional version with solder tags in the opposite direction |
| IXO version | Optional version with narrow U-shaped solder tags, approx. 5mm × 0.15mm × 20mm |
| Standard test conditions | 25 ± 5°C, 65 ± 20% relative humidity |
| Direct soldering on the cell | Not recommended. Connections should be made using spot-welded terminal lugs. |
| Cell spacing in the battery pack | Recommended more than 1mm distance between the cells |
| Cycle behaviour | After 250 cycles at least 1200mAh, corresponding to 60% of the nominal capacity at 25°C |
| Drop test | 1.0m drop height on oak wood plate, 6 repetitions, criterion: no leakage |
| Vibration test | according to UN38.3, criterion: no leakage and less than 10mV OCV drop |
| Overcharge test | 20A / 20V at 25°C for 2 hours, criterion: no fire, no explosion |
| Short circuit test | Short circuit with 50mΩ for 10 minutes, criterion: no fire, no explosion |
| Heating test | Heating to 150°C and 10 minutes holding time, criterion: no fire, no explosion |
| UN number | UN3480 |
| Shipping name | Lithium Ion Batteries |
| Transport dangerous goods class | Class 9 |
| UN38.3 Tests | T1 to T8 passed |
1Nominal capacity: The nominal capacity of a battery indicates the amount of electrical charge that it can store and release under defined laboratory conditions. This value is measured at a constant temperature and under defined test conditions in order to create a reliable reference for the performance of the battery. Measurements with standard household devices, e.g. USB measuring devices or chargers with an analyser function, often show lower values, as these work under different conditions and cannot achieve the manufacturer’s laboratory conditions.
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