2.4 Inch 8 Channel 18650 Battery Capacity Tester Internal Resistance Automatic Charging and Discharging Module

Product Parameters: 8 Channel 18650 Battery Capacity Tester Module

• Working Voltage: DC 5V 10A (bare unit, does not include power supply), overvoltage burn-in protection.
• Power Supply Interface:
  1. DC 5.5 high-current interface
  2. 5V positive and negative solder joints
• Power Supply Reverse Connection Protection: Equipped with reverse connection protection. Reversing the power connection is strictly prohibited.

Operating Modes:

1. Automatic Mode:
   • The program starts → Charging begins with a stop voltage of 4.2V.
   • If the charging current is below the stop current for 30 seconds, charging is completed.
   • Device enters standby mode (no charging or discharging).
   • Discharging begins based on the stop voltage setting. If the load voltage remains below the stop voltage for 10 seconds, discharging is completed.
   • Device enters standby mode again.
   • Charging resumes when the recharge voltage reaches the stop voltage. If set to 4.2V, charging stops when the current is below the stop current for 30 seconds.
2. Charging Mode:
   • The program starts → Charging continues until the voltage reaches the set 4.2V.
   • If the charging current falls below the stop current for 30 seconds, the program ends.
   • If the set voltage is not 4.2V, the program ends once the battery voltage reaches the charging voltage.
3. Discharge Mode:
   • The program starts → If the load voltage remains below the stop voltage for 10 seconds, discharging completes, and the program ends.
4. Activation Mode (For Professionals Only):
   • Continuous forced charging until manually stopped. Testers must not leave the site during use.

Charging & Discharging Parameters:

• Charging Current: Each channel operates independently at a maximum of 1A (not adjustable).
• Charging Stop Voltage: Adjustable in six steps (3.7V, 3.8V, 3.9V, 4.0V, 4.1V, 4.2V).
• Recharge Stop Voltage: Adjustable in 13 steps (3.0V to 4.2V in 0.1V increments).
• End Current: Adjustable at 100mA, 200mA, or 300mA.
• Discharge Current: Each channel operates independently at approximately 1A (not adjustable).
• Discharge Stop Voltage: Adjustable in 17 steps (2.0V to 3.6V in 0.1V increments).
• Standing Time: Adjustable from 1 to 5 minutes.

Display & Monitoring:

• Status Preview: Supports 8-channel status preview on a single screen.
• Single-Channel Details Display: Supported.
• Charge-Discharge Curve Display: Supported.
• Internal Resistance Detection: Uses a DC two-wire method for approximate batch separation analysis.

Additional Features of 8 Channel 18650 Battery Capacity Tester

• Heat Dissipation: Active cooling mechanism.
• Overheat Protection: Supported.
• Cyclic Charging & Discharging: In automatic mode, only a single charge-discharge-charge cycle is supported (multiple cycles are not supported).
• External Testing:
  • Supports external discharge via 2P terminal.
  • A single channel can use either the battery holder or external test, but not both simultaneously.
• Battery Reverse Connection Protection: Built-in protection; reverse connection is strictly prohibited.

Product Dimensions:

• Product Size: 37 × 110 × 310mm
• Packing Size: 60 × 112 × 335mm

Packing List:

• Tester Module ×1 (battery not included)
• Lever ×1

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