18650 Battery Capacity Tester Type C Digital 4 Channel

Meet the meterk 18650 Battery Capacity Tester Type C Digital 4 Channel — a compact, four-channel tester engineered to measure capacity, real-time voltage and current, and battery health for 18650 cells. Each channel operates independently, enabling simultaneous testing without interference. With a direct current two-wire method for precise internal resistance readings and an automatic mode supporting up to 9 charging and discharging cycles, this unit is ideal for DIY enthusiasts, battery packs, and workshop technicians who demand accurate, repeatable results.

Benefits & Tips

• Four-channel testing with independent channels for parallel evaluation, saving time and improving workflow.
• Real-time data at a glance: voltage, current, cumulative capacity, cumulative energy, runtime, and internal resistance.
• Automatic charging/discharging cycles: supports 1–9 cycles; stops automatically when conditions are met. Stop discharge voltage is adjustable from 2.5V to 3.5V (11 settings).

Product specifications

• Operating voltage: 5V DC
• Power supply interface: two Type-C ports
• Applicable battery range: stop discharge voltage 2.5–3.5V; 2.8V starts, around 4.2V full for typical Li-ion cells
• Test quantity: 4-channel charging and discharging measurement
• Internal resistance measurement: supported (direct current two-wire method)
• Charging function: supports full automatic cut-off charging (does not support charging LiFePO4 batteries)
• Discharge function: supports automatic stop when conditions are met; discharge current is not adjustable
• Automatic charging and discharging: supported; automatic mode ends when the battery is fully charged
• Cycle charging and discharging: 1–9 cycles adjustable (automatic mode only)
• Display and indicators: digital display shows real-time voltage, real-time current, cumulative capacity, cumulative energy, battery internal resistance, cumulative runtime (hh:mm:ss), cycle times, stop discharge voltage, working mode menu, status indication, and channel indication
• 18650 battery holder: compact holder suitable for flat-head 18650 cells
• Heat dissipation: fan active; overheat protection supported
• Language interface: English and Chinese switchable; default language is Chinese
• Origin: Mainland China; Brand: meterk; Model: 18650 Battery Tester; Type: Household Battery Tester
• Certification: CE; Battery Included: No

Language support

Supports Chinese and English interface switching; the default language is Chinese.

Warnings / Reminders

• Note: It does not support charging of lithium iron phosphate (LiFePO4) batteries.

Package includes:

• Package contents not specified in current product data.

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