7.4v Lithium Ion / Li-ion Battery Pack For Handheld Spirometer

I. BATTERY SPECIFICATION:7.4v Lithium ion / Li-ion Battery Pack for Handheld SpirometerNo. Items Criteria 1Nominal Capacity6000mAh2Nominal Voltage7.40V3Charging voltage:8.5V±0.03v4Charging Method:CC-CV (constant voltage with limited current)5Charging Current:Standard charge: 2A Rapid charge: 3A6Charging time:stand charge: 4.5-5hrs Rapid charge: 2.5-3.5hrs7Max. Charge Current:3000mA (ambient temperature 25?)8Max. Discharge Current:12A 9Discharge cut-off voltage:5.50v10Charge voltage:8.5V11Size:74*74*69mm12Operating Temperature:Charging : 0~45?Discharging : -20~60?13Storage Temperature:1.5 year
7.4v Lithium Ion / Li-ion Battery Pack For Handheld Spirometer