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Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Specifications
Model Number :
RS50
Nominal Capacity :
5000mAh (Min. 4950mAh @ 0.2C)
MOQ :
130
Delivery Time :
3-5 days
Max. Discharge :
70A (with 80°C surface thermal cut-off)
Brand Name :
Reliance
Nominal Voltage :
3.6V
Packaging Details :
130pcs/Carton box
Payment Terms :
T/T
Price :
$3.2
Cell Dimensions :
Max. Diameter: 21.35mm / Max. Length: 70.30mm
Supply Ability :
500K/Month
Certification :
UN38.3/CE/UL/IEC62133/KC/BIS
AC Internal Impedance :
≤ 4.0 mΩ (@ 1kHz, typical ~3.0mΩ)
Place of Origin :
China
Max. Fast Charge :
15A (3C Fast Charge)
Description
INR21700 5000mAh 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell
The INR21700 5000mAh is a next-generation high power cylindrical lithium-ion cell designed to meet the extreme energy demands of modern industrial and commercial equipment. Engineered with state-of-the-art full tab (tabless) internal architecture, this cell boasts an ultra-low AC internal resistance (ACIR ≤ 4.0mΩ).
Technical Specifications
Specification Parameter Technical Value / Detail
Cell Model RS50 INR21700 Series (5000mAh)
Nominal Voltage 3.6V
Nominal Capacity Typical ~5000mAh (Min. 4950mAh @ 0.2C)
AC Internal Impedance (ACIR) ≤ 4.0 mΩ (@ 1kHz, typical ~3.0mΩ)
Charge Cut-off Voltage 4.20V
Discharge Cut-off Voltage 2.50V
Standard Charging Current 2.5A (0.5C)
Max. Fast Charge Current 15A (3C Fast Charge)
Max. Continuous Discharge 70A (with 80°C surface thermal cut-off)
Cell Dimensions Max. Diameter: 21.35mm / Max. Length: 70.30mm
Cell Weight ≤ 67.0g
Operating Temperature Charge: -20°C to 60°C / Discharge: -40°C to 80°C
Storage / Shipping SOC 3.46V ~ 3.52V (~30% SOC)
Key Performance Highlights
  • Advanced Tabless / Full Tab Structure: Features cutting-edge full-tab construction that drops internal resistance to ≤ 4.0mΩ, vastly lowering operating temperatures under high-current loads.
  • Extreme High-Drain Capacity: Effortlessly sustains continuous 40A currents with surface temperatures kept under 70°C, while capable of handling burst pulse discharges up to 90A.
  • Unrivaled Low-Temperature Performance: At -20°C under 40A load, initial output voltage stays above 2.2V; at -40°C extreme cold, delivers steady 10A current with initial voltage exceeding 2.3V.
  • Long Cycle Life Expectancy: Heavy-duty use retains ≥80% capacity at 500 cycles; deep cycle use delivers over 1000 cycles; standard use achieves 1500+ full charge/discharge cycles.
  • Certified Safety Standards: Verified compliant with UN38.3, UL1642 crush tests (13kN), drop tests, high-voltage overcharge, 130°C thermal exposure, and short-circuit protection.
Primary Applications
  • Industrial Drones & UAVs: Heavy-payload multirotors, agricultural spraying drones, aerial mapping UAVs, and high-discharge FPV platforms
  • Professional Power Tools: High-torque drills, rotary hammers, circular saws, lawnmowers, and heavy-duty gardening machinery
  • Commercial Cleaning Appliances: High-suction cordless vacuum cleaners, smart floor scrubbers, and automated sweeping robots
  • Light Electric Vehicles (LEVs): High-performance e-motorcycles, premium electric bikes, urban e-scooters, and golf carts
  • Portable Energy Storage Systems (ESS): High-wattage outdoor generator stations, solar power packs, and emergency UPS backups
Safety Instructions & Handling Guidelines
  • Dedicated Lithium Charger Only: Always charge using a reliable, dedicated Li-ion charger set to 4.2V cut-off limit.
  • Voltage Range Protection: Do not overcharge past 4.2V or over-discharge below 1.5V.
  • BMS Requirement: Cells must be assembled with a qualified Battery Management System featuring thermal, over-current, and short-circuit protection.
  • Thermal Precaution During Welding: Avoid prolonged heat contact; direct soldering on terminals is prohibited.
  • Short-Circuit Prevention: Never carry bare cells near metal objects; always transport with insulating terminal caps.
  • Storage Protocol: For long-term storage, maintain partial state of charge (3.45V to 3.95V) in cool, moisture-controlled environment.
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Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility

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Product Detail
Model Number :
RS50
Nominal Capacity :
5000mAh (Min. 4950mAh @ 0.2C)
MOQ :
130
Delivery Time :
3-5 days
Max. Discharge :
70A (with 80°C surface thermal cut-off)
Brand Name :
Reliance
Contact Supplier
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility
Reliance RS50 70A Ultra High Power Full Tab / Tabless Lithium-ion Battery Cell for Drones, Power Tools, Cleaners & E-Mobility

Shenzhen EMB Technology Co., Ltd

Verified Supplier
2 Years
shenzhen
Business Type :
Manufacturer, Exporter, Trading Company
Main Products :
18650 Cylindrical Cells, 21700 Cylindrical Cells, Full Tab Cylindrical Cells
Employee Number :
147~178
Certification Level :
Verified Supplier
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