The 10000mAh 6S2P Samsung 50S Li-Ion Battery – Made in Europe is a professional-grade high-capacity endurance pack manufactured in Europe for demanding UAV, industrial, long-range, and professional applications.

Built using premium Samsung INR21700-50S Li-Ion cells in a 6S2P configuration, this battery combines a large 10000mAh energy reserve with strong current capability, high energy density, documented transport testing, and European battery-pack manufacturing.

The battery model is UN38.3 tested and supplied with MSDS / SDS documentation, making it particularly suitable for professional customers, UAV integrators, industrial operators, research institutions, public-sector organisations, and projects where documentation and European manufacturing are important procurement requirements.

Samsung specifies the INR21700-50S at 25A maximum continuous discharge per cell without temperature cut-off and 45A per cell with an 80°C cell-surface temperature cut-off. In a 2P configuration, this corresponds to 50A continuous discharge and a temperature-limited value of up to 90A.

Key Benefits

• Battery pack manufactured in Europe
• 10000mAh capacity for extended endurance
• Premium Samsung INR21700-50S Li-Ion cells
• 6S2P configuration for increased capacity and current sharing
• 50A continuous discharge rating
• Temperature-limited discharge: up to 90A with 80°C cell-surface cut-off
• Recommended charging current: 5A
• Maximum continuous pack charging current: 12A
• High energy density for endurance-focused applications
• UN38.3 tested
• MSDS / SDS documentation available
• Suitable for long-range, industrial, research, mapping, inspection, testing, and system-integration applications
• XT60 main connector and JST-XHR balance connector

Made in Europe for Professional Applications

This battery pack is manufactured in Europe using Samsung INR21700-50S lithium-ion cells.

It is intended for both recreational long-range FPV and professional UAV applications including industrial inspection, mapping, research, testing, fleet operation, system integration, long-range operation, and public-sector projects.

European battery-pack manufacturing can be particularly relevant where project documentation, procurement policies, traceability, supply-chain requirements, or customer specifications require the finished battery pack to be manufactured within Europe.

For B2B projects, fleet requirements, larger quantities, or technical integration questions, please contact iFlight Europe.

Li-Ion Battery Behaviour

Li-Ion batteries behave differently from standard FPV LiPo batteries.

Compared with high-discharge LiPo packs, Li-Ion batteries generally provide higher energy density and improved endurance but may show greater voltage sag under heavy load.

The Samsung 50S combines high capacity with substantially higher current capability than conventional endurance-focused Li-Ion cells. Samsung specifies 25A continuous discharge per cell without temperature cut-off, corresponding to 50A in this 2P configuration.

Samsung additionally specifies 45A per cell when an 80°C cell-surface temperature cut-off is applied, corresponding to a theoretical 2P value of up to 90A. This value is temperature-limited and should not be treated as an unrestricted 90A continuous-current rating.

Actual permissible current depends on pack construction, wiring, connector, cooling, ambient temperature, state of charge, operating duration, and the complete aircraft power system.

Betaflight and OSD Voltage Warning Note

Most Betaflight and FPV OSD low-voltage warnings are configured around standard LiPo behaviour.

Li-Ion batteries have a different voltage curve and may show increased voltage sag under load, especially at high current, low temperature, or near the end of the available capacity.

Always monitor voltage per cell, consumed mAh, voltage sag under load, battery temperature, and resting voltage after landing. Do not rely only on default LiPo warning settings when using Li-Ion packs.

Technical Specifications

Manufacturing: Made in Europe

Cell type: Samsung INR21700-50S Li-Ion

Configuration: 6S2P

Battery cells: 12 × 21700 Li-Ion cells

Cell capacity: 5000mAh typical

Minimum cell capacity: 4800mAh

Pack capacity: 10000mAh / 10.0Ah typical

Nominal cell voltage: 3.6V

Nominal pack voltage: 21.6V

Nominal pack energy: approx. 216Wh

Maximum charge voltage: 4.20V per cell

Maximum full pack voltage: 25.2V

Cell discharge cut-off voltage: 2.5V per cell

Samsung continuous discharge specification: 25A per cell without temperature cut-off

Pack continuous discharge rating: 50A

Samsung temperature-limited discharge specification: 45A per cell with 80°C cell-surface cut-off

Temperature-limited 2P discharge rating: up to 90A with 80°C cell-surface cut-off

Samsung standard charge current: 2.5A per cell

Recommended pack charge current: 5A

Samsung maximum continuous charge current: 6A per cell

Maximum continuous pack charge current: 12A

Initial cell internal impedance: ≤14mΩ, AC 1kHz after rated charge

Connector: XT60

Balance connector: JST-XHR

UN38.3: Tested

MSDS / SDS: Available

Samsung specified ambient charging temperature: 0°C to 45°C

Samsung specified ambient discharging temperature: –20°C to 60°C

The Samsung cell specification lists 5000mAh typical / 4800mAh minimum capacity, 2.5A standard charging, 6A maximum continuous charging, 2.5V discharge cut-off, and ≤14mΩ initial AC impedance.

Charging Guidelines

• Always use a Li-Ion compatible balance charger.
• Maximum charge voltage: 4.20V per cell / 25.2V total
• Recommended routine charging current: 5A
• Maximum continuous pack charging current: 12A
• The 5A recommendation corresponds to Samsung's standard charge current of 2.5A per cell in a 2P configuration.
• Do not exceed 12A charging current.
• Do not charge above 4.20V per cell.
• Do not charge below 0°C.
• Do not charge unattended or near flammable materials.
• Never charge a damaged, swollen, overheated, wet, crashed, or otherwise suspicious battery.

For routine operation and battery longevity, we recommend charging at 5A.

Discharge and Landing Guidelines

• Continuous discharge rating: 50A
• Temperature-limited discharge: up to 90A with 80°C cell-surface cut-off
• The 90A value requires appropriate thermal monitoring and operating conditions and should not be treated as an unrestricted continuous-current rating.
• 2.5V per cell is the Samsung discharge cut-off voltage, not a recommended routine landing target.
• Maintain an appropriate voltage and capacity reserve for the aircraft and operating conditions.
• Voltage under load may temporarily be lower than the resting voltage after landing.
• High current increases voltage sag and battery temperature.
• Repeated deep discharge can reduce cycle life and increase the risk of cell imbalance or damage.
• Stop operation if battery temperature, connector temperature, voltage sag, or other behaviour becomes abnormal.

Samsung specifically states 45A per cell only with an 80°C surface-temperature cut-off and specifies that discharge over-temperature protection must not exceed 80°C at the hottest relevant cell location in the pack.

Storage Guidelines

• Store the battery partially charged rather than fully charged or deeply discharged for extended periods.
• Disconnect the battery from the aircraft, charger, or other device after use.
• Store in a cool, dry, well-ventilated location.
• Avoid high temperatures, direct sunlight, freezing conditions, moisture, and physical damage.
• Keep away from flammable materials.
• Use an appropriate fire-resistant battery storage solution.
• Inspect the battery periodically during long-term storage.

If swelling, leakage, abnormal smell, corrosion, physical damage, abnormal heating, or unusual cell imbalance is detected, stop using the battery immediately.

Package Includes

1× 10000mAh 6S2P Samsung 50S Li-Ion Battery – Made in Europe with XT60 connector

Safety Disclaimer

Lithium batteries must be handled with care. Improper charging, over-discharging, short-circuiting, overheating, physical damage, puncturing, or incorrect use can cause fire, explosion, injury, or property damage.

Only use a compatible lithium-ion balance charger and always follow the charger instructions, battery label, and product specifications.

The 90A value is temperature-limited and is based on Samsung's 45A-per-cell specification with an 80°C cell-surface temperature cut-off in a 2P configuration. It is not an unrestricted recommendation for continuous 90A operation.

The user is responsible for selecting a suitable battery and operating the complete system within its electrical, thermal, and mechanical limits.

Do not use batteries that are damaged, swollen, punctured, overheated, over-discharged, shorted, or exposed to water.