Precisely measure and analyze your 18650 batteries with this 2/4/8 channel capacity tester and electronic load. This professional-grade module automates charge/discharge cycles to deliver accurate mAh capacity and internal resistance readings, essential for building reliable battery packs, grading cells, and ensuring peak performance. It supports up to 8 simultaneous tests, saving significant time. Features and Benefits
- Multi-Channel Independent Testing - Test 2, 4, or 8 cells simultaneously with individual channel control for efficient batch analysis and sorting.
- Automated Charge/Discharge Cycles - Automatically performs complete test cycles to measure true capacity (mAh) without manual intervention.
- Internal Resistance Measurement - Accurately measures cell ESR (Equivalent Series Resistance), a critical health indicator for pack building and cell matching.
- Adjustable Discharge Current - Configure the electronic load's discharge current up to 1A per channel (typical) for flexible testing under different load conditions.
- Clear Data Display - Integrated display shows real-time voltage, current, capacity, and resistance for each channel during operation.
- PC Connectivity - USB interface allows for detailed data logging and analysis on computer software for professional reporting and tracking. Applications
- Battery Pack Assembly - Precisely match cells by capacity and internal resistance to build balanced, high-performance, and safe lithium battery packs.
- Cell Grading and Recovery - Evaluate used 18650 cells from old laptop batteries or power tools to identify healthy cells for reuse in new projects.
- Quality Control and Diagnostics - Verify specifications of new battery purchases and diagnose underperforming cells in existing devices or packs.
- DIY Electronics and Hobbyist Projects - An essential tool for anyone working with lithium batteries in custom flashlights, portable power stations, or RC vehicles. Note: Always follow proper lithium-ion battery safety protocols during testing. Use in a well-ventilated area and never leave charging batteries unattended.
Dimensions (per channel module): 48 x 21 x 14 mm. Capacity Measurement Range: 0.001 Ah to 99.999 Ah. Capacity Measurement Accuracy: ±1%. Battery Type Compatibility: 18650 Li-ion. Supported Battery Chemistry: Li-ion, LiFePO4, Ni-MH, Ni-Cd. Power Input Interface: USB Type-C. Discharge Cut-off Voltage: 2.5 V. Operating Voltage: 5 V DC. Display Type: Digital. Channels: 2, 4, or 8. Charge Current Range: 0.1 A to 2.0 A. Discharge Current Range: 0.1 A to 2.0 A. Functions: Capacity testing, Internal resistance testing, Automatic charge, Automatic discharge, Electronic load. Internal Resistance Measurement Accuracy: ±1% ±5 mΩ. Internal Resistance Measurement Range: 0.001 Ω to 9.999 Ω. Charge Cut-off Voltage: Configurable, typically 4.2V. Discharge Cut-off Voltage: Configurable, typically 2.5V - 3.0V. Power Input: DC 12V (inferred from similar products). Supported Battery Type: 18650 Lithium-Ion Cell. Capacity Measurement Range: 0 - 9999mAh (or 0 - 99.99Ah). Resistance Measurement Range: 0 - 999mΩ. Communication Interface: USB for PC data logging (inferred). Control Interface: Tactile buttons or rotary encoder. Channels: 2, 4, or 8 (configurable model). Charge Mode: Constant Current / Constant Voltage (CC/CV). Cooling Method: Passive heatsink or active fan. Display Type: Digital LCD or OLED. Load Type: Constant Current Electronic Load. Maximum Charge Current per Channel: Inferred 0.5A - 1.0A. Maximum Discharge Current per Channel: Inferred 1.0A - 2.0A. Measurement Resolution: Voltage: 0.01V, Current: 0.001A. Primary Function: Automatic Charge and Discharge Cycle Testing. Product Type: Multi-Channel Battery Capacity and Resistance Tester. Secondary Function: Internal Resistance Measurement. Q: What are the specifications and dimensions of this Gaqqee 18650 battery capacity tester? A: This is a 2/4/8 channel automatic charge and discharge module electronic load tester. The specific model is the 18650 Battery Capacity Resistance Tester. For precise dimensions, please consult the product images or contact the seller, as this information is not provided in the current listing.. Q: Is the Gaqqee battery capacity tester durable enough for regular professional use? A: Yes, the Gaqqee tester is built with reliable components for consistent performance. It is designed to handle the demands of regular testing cycles, making it a suitable tool for both DIY enthusiasts and professionals who require dependable equipment.. Q: Can this automatic charge and discharge module test other battery types besides 18650 cells? A: This tester is specifically designed and named for 18650 battery capacity and resistance testing. For accurate and safe operation, it is recommended to use it only with compatible 18650 lithium-ion cells as intended by the manufacturer.. Q: Does this electronic load tester come with a warranty or guarantee? A: The product listing does not specify a warranty period. We recommend reviewing the seller's policy page or contacting them directly for detailed information on any product guarantees or after-sales support offered.. Q: Is this 8-channel battery tester a good value compared to single-channel units? A: Yes, this offers excellent value for DIY enthusiasts and professionals seeking quality without premium brand pricing. The multi-channel design allows for testing up to eight 18650 batteries simultaneously, significantly improving efficiency over single-channel testers for batch testing..