The product supports four-channel capacity and internal resistance measurement.Support separate charging and discharging, and support up to 9 charging and discharging cycles in automatic modeEach channel is of each other, set separately, operates independently, and does not interfere with each other. 18650 battery holder uses compact battery holder, suitable for flat- battery measurementActive cooling of fan supports overheating protection. Using DC two-wire to measure internal resistance. Working voltage: DC5V. Applicable battery: suitable for all batteries that meet the requirements of stopping discharge voltage of 2.5~3.5V and starting from 2.8V to 4.2VPower supply interface: Dual Type-C power supply interface (power supply and power cord are not included)System language: English/Chinese can be switchedTest quantity: 4-way charging and discharging measurementInternal resistance measurement: support, use DC two-wire to test internal resistanceCharging function: support, automatic cut-off charging when fully (lithium iron phosphate battery charging is not supported)Discharge function: support, automatically stop when conditions are met, and the discharge current is not adjustableAutomatic charging and discharging: supported. The battery is fully at of automatic modeCyclic charging and discharging: supported, 1~9 cycles adjustable (only supported in automatic mode)Status prompt: SupportedCooling mode: fan active coolingOverheat protection: supportStop discharge 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 gearsDischarge current: the maximum current is about 1A, which is not adjustable, and does not support transformationCharging voltage: controlled by a special battery charging chip, with a maximum charge of about 1A and a full charge voltage of 4.2VPower-off saving: only save the set parameters, not the measurement dataNote:lithium iron phosphate battery charging is not supportedThe product display defaults to Chinese if you need to switch, watch the video belowColour:greenMaterial:plasticPackage Contents:1 x Battery Capacity TesterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.