Semi-finishedproduct : No
Battery Included : no
High-concerned chemical : none
Gaqqee Model : Battery Capacity and Internal Resistance Tester
Power Source : DC
Model Number : Battery Capacity and Internal Resistance Tester
Type : Household Battery Tester
DIY Supplies : Electrical
Brand Name : Gaqqee
Origin : Mainland China
Certification : CE,RoHS,weee
Operating Voltage : DC5V
System Languages : English,Chinese
Power Interface : Type-C power interface
Number of Channels : 1 channel for charge and discharge measurement
Charge/Discharge Cycles : Supported; adjustable from 1 to 9 cycles (supported in automatic mode only)
Status Indication : Supported
Cooling Method : Natural convection
For 21700 battery
Product Features:
1. Uses the two-wire DC method to test internal resistance, offering simple operation and strong resistance to interference
2. Automatically cuts off charging when the battery is fully charged, providing safe protection against overcharging; does not support charging of lithium iron phosphate (LiFePO₄) batteries
3. Automatic mode supports up to 9 charge-discharge cycles, facilitating battery activation and testing
4. Single-channel professional testing, powered via a TypeC port, for convenience and ease of use
5. Spring-loaded battery holder design: The spring-loaded battery holder allows for quick and easy battery installation and removal, improving testing efficiency
Product Specifications:
Operating Voltage: 5V DC
Compatible Batteries: Suitable for batteries with a cut-off voltage of 2.5–3.5V and a charging range from 2.8V (start) to 4.2V (full charge)
Power Interface: Type-C power interface (power adapter and cable not included)
System Languages: Chinese, English
Number of Channels: 1 channel for charge and discharge measurement (the battery holder on the right is for measurement)
Internal Resistance Measurement: Supported; uses the DC two-wire method to test internal resistance
Charging Function: Supported; automatically cuts off charging when fully charged (does not support charging of lithium iron phosphate batteries)
Discharging Function: Supported; automatically stops when conditions are met; discharge current is not adjustable
Automatic Charge/Discharge: Supported; the battery is fully charged when the automatic mode ends
Charge/Discharge Cycles: Supported; adjustable from 1 to 9 cycles (supported in automatic mode only)
Status Indication: Supported
Cooling Method: Natural convection
Discharge Cut-off Voltage: Adjustable to 11 levels: 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V
Discharge Current: Maximum approx. 1A (non-constant current), non-adjustable, not supported for user modifications
Charging Voltage: 4.2V, controlled by a 4056 chip; the right battery slot supports a maximum charging current of approx. 1A; charging stops when the current drops below 0.1A.
Power-Off Data Retention: Only settings are retained; measurement data is not saved
Product Dimensions: 112 × 84 × 28 mm
Package Contents:
Battery Capacity and Internal Resistance Tester x 1 (battery not included)
For 18650 battery
Product Features:
1. Supports single-channel internal resistance and capacity measurement
2. Supports individual charging; supports up to 9 charge-discharge cycles in automatic mode
3. Uses the two-wire DC method for internal resistance testing; switchable between Chinese and English
4. The 18650 battery holder uses a spring-loaded design and is compatible with all 18650 batteries
Maximum charge/discharge current: approximately 1A
Note: During charging and discharging, certain components may become locally hot. Ensure the device is used in an open, unobstructed area; adding a fan for cooling is recommended. To ensure a secure hold, the 18650 battery holder uses a compact design and is suitable for measuring flat-top batteries only!!! Charging of lithium iron phosphate (LiFePO₄) batteries is not supported
Power On/Off:
① The device powers on automatically when connected to a power source.
② While powered on, press and hold the “ON/OFF/Menu” button to turn off the device.
③ If the device is off but still connected to a power source, press the “ON/OFF/Menu” button once to turn it on.
Product Specifications:
Power Supply: External DC 5V power supply or 18650 battery (both must be provided by the user)
Compatible Batteries: Any battery with a cut-off voltage of 2.5–3.5V and a charging voltage of 4.2V is compatible
Power Input: Type-C port; power cable must be provided by the user (standard Type-C smartphone cable)
System Language: English/Chinese (switchable)
Test Channels: 1 channel for charge and discharge measurement (right-side battery only)
Internal Resistance Measurement: Supported; uses the DC two-wire method to measure internal resistance
Charging Function: Supported; 1 channel with program-controlled charging up to approximately 1A; 1 channel with hardware-controlled charging up to approximately 0.5A
Discharging Function: Supported; 1 channel only, supporting discharge up to approximately 1A; automatically stops when conditions are met
Auto Charge/Discharge: Supported; battery is fully charged when auto mode ends (stop voltage set to 2.8V or higher)
Cycle Charging and Discharging: Supported; 1–9 cycles adjustable
Status Indication: Supported
Discharge Stop Voltage: 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V,
3.3V, 3.4V, 3.5V—11 adjustable levels
Discharge current: Two resistors, maximum current of approximately 1 A; not adjustable; custom modifications not supported
Charging voltage: Controlled by a dedicated battery charging chip; maximum charging current of approximately 0.5 A or 1 A; full charge voltage 4.2 V
Power-off data retention: Saves only configuration parameters; does not save measurement data
Package Contents:
Battery Capacity and Internal Resistance Tester x 1 (battery not included)
label:yes
Battery capacity: 43200
Charge indicator: No
Number of ports: 1 port
Quick charge: No
Voltage: 1.5
No-delivery refund
