BT4-1CHN 21700 Battery Capacity Tester Single Channel C 1 Electronic

Discover the BT4-1CHN 21700 Battery Capacity Tester Single Channel C 1 Electronic — a standout decor pick featuring adjustable, professional design for dependable, everyday performance.

Specifications

Brand Name: Aideepen

Certification: NONE

DIY Supplies: Electrical

Power Source: None

Semi-finishedproduct: No

Type: Electronic Device Battery Tester

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 Type-C interface 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: DC 5V

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 charging and discharging 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:

Tester × 1

Frequently Asked Questions

Q: What is the BT4-1CHN 21700 Battery Capacity Tester Single Channel C 1?

A: The BT4-1CHN 21700 Battery Capacity Tester Single Channel C 1 is a quality decor pick. Uses the two-wire DC method to test internal resistance, offering simple operation and strong resistance to interference 2.

Q: How do I use the BT4-1CHN 21700 Battery Capacity Tester Single Channel C 1?

A: The BT4-1CHN 21700 Battery Capacity Tester Single Channel C 1 is ready to use right out of the box and makes an easy addition to your decor lineup.

Q: Why choose the BT4-1CHN 21700 Battery Capacity Tester Single Channel C 1?

A: The BT4-1CHN 21700 Battery Capacity Tester Single Channel C 1 stands out in our decor range — 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.