26650 7000mAh Li-ion Rechargeable Orbtronic Unprotected Battery Cell

Orbtronic 26650 7000mAh Li-ion Unprotected Battery Cell

Batteries sold individually. Free safety case included holds two cells.

Core Specifications

• Model: ORB-7000-HD
• Type: 26650 Cylindrical Lithium-ion Rechargeable Cell
• Rated Capacity: 7000mAh
• Minimum Capacity: 6800mAh
• Nominal Voltage: 3.6V-3.7V
• Energy: 25.9 Wh
• Chemistry: Advanced Li-ion for Ultra high capacity
• Positive Terminal: Wide Button Top
• AC Impedance: ≤29mΩ (at AC 1kHz)
• Capacity Test Conditions: 0.2C charge to 4.2V, 0.2C discharge to 2.5V (at 25°C)

Technical Specifications

Charging Specifications

• Charging Voltage: 4.2V
• Standard Charge Method: CC-CV (Constant Current - Constant Voltage)
• Standard Charge Current: 1A-2A
• Standard Charge Time: 4.0 - 8.0 hours (Varies by charge current)
• Maximum Charging Current:
  • 10°C to 45°C: 1C (7000mA)
  • 0°C to 10°C: 0.2C (1400mA)
• Charge Cut-off Temperature (Cell Surface): 50°C

Discharge Specifications

• Standard Discharge Current: 0.2C (1400mA)
• Standard Discharge Cut-off Voltage: 2.5V
• Maximum Discharging Current (Continuous): 2C (14000mA)
• Maximum Discharging Current (Pulse): 3C (21000mA) for 10 sec
• Discharge Cut-off Temperature (Cell Surface): 70°C

Performance

• Cycle Life: >85% of 1st cycle capacity after 500 cycles
  • Cycle Test Conditions: 0.5C Charge / 1C Discharge
• Discharge Rate Capabilities (vs 0.2C baseline):
  • 0.5C (3500mA): ≥96%
  • 1.0C (7000mA): ≥95%
  • 2.0C (14000mA): ≥93%
• Temperature Dependence of Discharge (0.2C):
  • 60°C: ≥100%
  • 45°C: ≥100%
  • 25°C: 100% (Baseline)
  • 0°C: ≥80%
  • -10°C: ≥75%
  • -20°C: ≥70%
• Storage Characteristics (12 months at 25°C):
  • Recoverable Capacity: ≥80% (after 5 cycles)

Mechanical & Physical Specifications

• Dimensions:
  • Diameter: 26.6 ± 0.5 mm
  • Height: 66.9 ± 0.5 mm
• Weight: ≤105g
• Positive Terminal: Wide Button Top

Operating & Storage Conditions

• Operating Temperature (Charge): 0°C to +45°C
• Operating Temperature (Discharge): -20°C to +60°C
• Storage Temperature (Recommended): -5°C to 35°C
• Storage Humidity: ≤75%RH

What's In The Box?

• One (1) Orbtronic 26650 ORB-7000-HD Battery Cell
• One (1) Protective Safety Case
• Professional, secure packaging

Recommended Charger

Orbtronic Universal Li-ion Charger & Tester

Warning: Read Before Use

Misusing or mishhandling a lithium-ion battery may cause fire or explosion. Always read and follow these precautions.

• Do not short-circuit the positive (+) and negative (-) terminals.
• Do not reverse the positive (+) and negative (-) terminals.
• Do not use an unspecified charger or charge above maximum requirements.
• Do not modify or disassemble the cell.
• Do not solder directly onto the cell.
• Do not expose to direct sunlight or extreme heat.
• Do not dispose of in fire or water.
• Do not use if the PVC tubing or terminal insulator is damaged. Always inspect the cell before each use.
• Stop using the cell immediately if abnormal heating, gas, discoloration, or deformation occurs.
• Keep away from children and pets.