The Heltec HT-BCT50A is a professional lithium battery charge and discharge capacity tester designed for accurate battery performance analysis, capacity testing, cycle testing and voltage balancing. It integrates charging, discharging, cycling and balancing functions in one device, making it ideal for lithium battery testing, maintenance, repair and quality inspection.
With adjustable charging/discharging parameters, high-precision measurement and multiple safety protections, it supports various lithium battery types including NCM, LiFePO4 and LTO batteries. It is widely used in battery laboratories, production lines, repair centers and DIY battery applications.
Product Features
All-in-One Battery Testing Functions
Charge Mode: Supports CC-CV charging with adjustable voltage and current parameters.
Discharge Mode: Uses MOS tube electronic discharge technology for stable and accurate capacity testing.
Cycle Mode: Performs repeated charge-discharge cycles to evaluate battery performance and lifespan.
Voltage Balance Mode: Helps improve battery cell consistency through controlled discharge balancing.
Wide Battery Compatibility
Supports lithium batteries including:
NCM (Ternary Lithium Battery)
LiFePO4 Battery
LTO Battery
18650 Lithium Battery
Polymer Lithium Battery
Voltage range: 0.3-5V
Capacity range: 1-2000Ah
High Precision Measurement
Voltage accuracy: ±0.1%
Current accuracy: ±0.1%
Capacity measurement error: ±1.5%
Real-time display of:
Voltage
Current
Capacity (Ah)
Energy (Wh)
Temperature
Charge/discharge curves
Intelligent Safety Protection
Built-in multiple protection systems ensure safe operation:
Battery overvoltage protection
Overcurrent protection
Reverse polarity protection
Battery disconnection protection
Fan failure protection
High temperature alarm and protection
Intelligent Cooling System
Cooling fan automatically starts at 40°C
Temperature protection activates at 83°C
Regular fan inspection and maintenance are recommended for stable operation
Technical Specifications
Model: HT-BCT50A
Charging Range: 0.3-5V / 0.3-50A adjustable, CC-CV mode
Discharging Range: 0.3-5V / 0.3-50A adjustable, Constant Current mode
Working Modes: Charge / Discharge / Rest Time / Cycle (up to 9999 cycles)
Auxiliary Function: Voltage balancing (CV discharge)
Accuracy: Voltage ±0.1%, Current ±0.1% (guaranteed within one year from purchase date)
Operating Temperature: 0-40°C
Power Supply: AC200-240V 50/60Hz (110V version available for customization)
Dimensions: 167 × 165 × 240mm
Weight: 2.6kg
Working Modes
Charging Mode
Adjustable charging voltage and current according to different battery types.
Recommended charging voltage:
LTO Battery: 2.7-2.8V
NCM / 18650 / Polymer Battery: 4.1-4.2V
LiFePO4 Battery: 3.6-3.65V
Charging current recommendation:
Set according to 10-20% of battery capacity to reduce battery heating.
Discharge Mode
Accurately tests the actual battery capacity through controlled constant-current discharge.
Recommended discharge voltage:
LTO Battery: 1.6-1.7V
NCM / 18650 / Polymer Battery: 2.75-2.8V
LiFePO4 Battery: 2.4-2.5V
Recommended discharge current:
10-50% of battery capacity depending on battery condition.
Cycle Test Mode
Performs repeated charging and discharging cycles to evaluate battery aging and performance.
Supports:
Charge → Discharge → Charge
Multiple cycle testing
Rest time can be set after charging or discharging to allow battery temperature stabilization.
Voltage Balance Mode
Balances battery voltage through controlled CV discharge.
Balance settings:
End voltage must be higher than the current battery voltage by more than 10mV.
Recommended balancing current: Less than 10% of battery capacity.
End current recommendation: 0.01A.
Product Operation
Power on the tester before connecting the battery.
Connect the positive and negative battery terminals correctly.
Enter the setting menu using the rotary control knob.
Adjust test parameters and confirm settings.
Start the selected charging, discharging or balancing process.
After completion, view test results including capacity, energy and curves.
Display Information
The LCD display shows:
Test cycle number
Charging/discharging capacity (Ah)
Energy (Wh)
Testing time
Voltage curve
Current curve
Smooth voltage and current curves indicate good battery performance. Large fluctuations may indicate excessive internal resistance, unstable connection or battery aging.
Package Includes
Battery Charge & Discharge Capacity Tester ×1
Power Cable ×1
Test Cable ×1
Anti-static Sponge ×1
Carton Box ×1
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