Аккумулятор Zhihang 18650 Li-ion 3,7 Вольт 2600 мА*ч

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Basic product characteristics No. project characteristic 3.1 capacity Minimum: 2600mAh 3.2 Q 3.7V 3.3 Charge termination voltage 4.2±0.05V 3.4 Discharge termination voltage 2.75V 3.5 Standard charging current 0.5C ( 1300mA) Charging current 1C ( 2600mA) 3.6 Maximum continuous discharge current 3C ( 8800mA) 3.7 range of working temperature Charging temperature 0 ~ 45 °C Discharge temperature –20~60 °C 3.8 weight About 43.0g 3.9 Dimensions Height: 65.0 ±0.3mm Outer diameter: 18.0±0.2mm Exterior There are no defects such as rust, dirty spots and deformation on the surface of the battery. characteristic 5.1 standard test conditions 5.1.1 Standard Charging: The battery is charged at a constant current of 1250mA at an ambient temperature of 23 °C ± 2 °C . When the battery terminal voltage reaches 4.2V , the charging is changed to constant voltage until the charging current is 4 4mA . 5.1.2 Standard discharge: The battery is discharged at a constant current of 1250mA under the ambient temperature of 23 °C ± 2 °C . When the battery terminal voltage reaches 2.75V , the discharge is stopped. 5.1.3 Fast charge / discharge: The battery is charged at a constant current of 2500mA under the ambient temperature of 23 °C ± 2 °C . When the battery terminal voltage reaches 4.2V , it is changed to a constant voltage charge until the charge current is 44mA . Discharge at a constant current of 2200 mA. When the battery terminal voltage reaches 2.75 V , the discharge is stopped. 5.2 Electrical properties No. project Test Methods standard 5.2.1 Internal resistance After the battery is charged according to 5.1.1 , the measured internal impedance is 1KHz AC. ≤ 38 m Ω 5.2.2 Initial capacity After the battery is fully charged according to 5.1.1 , it shall be left for 0.5h to 1h , and then discharged according to 5.1.2 . ≥ 2600mAh 5.2.3 Temperature performance After the battery is fully charged according to 5.1.1 , it shall be discharged at the following temperature according to 5.1.2 . -10 °C, 0 °C, 23 °C, 60 °C Discharge capacity ≥ 70% , 80% , 100% , 95% 5.2.4 Rate discharge performance After the battery is fully charged according to 5.1.1 , it is discharged to 2.75V with the following currents . 1000mA , 2000mA, 4000mA , 6000mA, 6600 mA Discharge capacity ≥ 100% , 97% , 94% , 90% , 80% 5.2.5 Charge retention and capacity recovery After the battery is fully charged with 5.1.1 , it is stored for 30 days at an ambient temperature of 23 °C ± 2 °C. After storage, the battery is discharged according to 5.1.2 to obtain the retention rate. After the battery was recharged according to 5.1.1 , it was left fully charged for 0.5h to 1h , and discharged at 5.1.2 to obtain the capacity recovery rate. Retention rate ≥ 88% Recovery rate ≥ 92% 5.2.6 Cycle performance The battery is rapidly charged / discharged according to 5.1.3 and is charged and discharged for 800 cycles. Discharge capacity ≥ 80% 5.3 Environmental Adaptability No. project Test Methods standard 5.3.1 Free fall After the battery is fully charged according to 5.1.1 , the battery sample is free to fall from a height ( minimum point height ) of 1000mm to a hardwood plate of 18mm to 20mm thickness placed on the concrete floor , from the X , Y , Z positive and negative directions. ( Six directions ) Free fall 1 time in each direction . Do not leak Not exploding No fire 5.3.2 vibration After the battery is fully charged according to 5.1.1 , install the battery directly or through the fixture on the table of the vibration table. Adjust the test equipment according to the following vibration frequency and corresponding amplitude. The X , Y , Z directions are from 10Hz to 55Hz Cyclone sweeping vibration for 30min , Sweep frequency: 1oct/min , Vibration frequency: 10Hz to 30Hz , Displacement amplitude ( single amplitude ) : 0.38mm , Vibration frequency: 30Hz to 55Hz , Displacement amplitude ( single amplitude ) : 0.19mm . The appearance should be no obvious damage, liquid leakage, smoke or explosion, and the battery voltage should not be lower than 3.6V . 5.3.3 Constant damp heat After the battery is fully charged by 5.1.1 , place the battery in a constant temperature and humidity box with relative humidity of 90% to 95% in a constant temperature and humidity of 40 °C ± 2 °C for 48 hours , and then remove the battery at an ambient temperature of 25 °C ± 5 °C. Sheld for 2h ; discharge it to the termination voltage with 1 C 5 A current. No obvious deformation, corrosion, smoke or explosion, the discharge time should not be low 36min . Safety features No. project Test Methods standard 5.4.1 Overcharge The battery is discharged by 5.1.2 and then charged to 10V at 3 times current . When the temperature drops to 10 °C lower than the peak temperature , the test is ended. No explosion, no fire 5.4.2 Overdischarge Discharge at a constant current of 1000 mA until the battery voltage reached 0 V , and the test was terminated. No explosion, no fire 5.4.3 Short circuit After the battery is fully charged according to 5.1.1 , place the battery with the thermocouple in the fume hood and short-circuit its positive and negative poles (the total resistance of the line is not more than 50m Ω ) . The battery temperature was monitored during the test and the test was terminated when the battery temperature dropped below the peak value of 10 °C. No explosion, no fire Battery temperature ≤ 150 °C 5.4.4 Thermal shock The battery was fully charged in 5.1.1 and placed in an oven. The temperature of the oven was raised from room temperature to 135 ± 2 °C at a rate of 5 ± 2 °C for 90 minutes. No explosion, no fire 5.4.5 Heavy impact After the battery is fully charged according to 5.1.1 , it is placed horizontally on a flat plate. A 15.8mm diameter round rod passes through the center of the battery. A 9.1 kg weight is dropped from the 610 (± 25 ) mm height onto the sample battery. The longitudinal axis of the battery is parallel to the surface of the plate, perpendicular to the longitudinal axis of the 15.8 ± 0.2 mm round bar , and the curved surface of the rod passes through the center of the battery. Each sample battery is only subjected to pressure in one direction. No explosion, no fire 5.4.6 extrusion After the battery was fully charged by 5.1.1 , the batteries were laterally and longitudinally compressed, respectively, so that the lateral and longitudinal dimensions of the extruded batteries were deformed by 1 mm to 3 mm, and the test was terminated. No explosion, no fire Warnings and precautions when using the battery To prevent battery leakage, heat generation, or explosion, please pay attention to the following precautions. Police report ! It is forbidden to immerse the battery in water . When it is not in use, it should be placed in a cool and dry environment. It is forbidden to use and retain the battery next to the hot and high-temperature source (such as fire, heater, etc.); Please use a lithium ion battery charger when charging. Do not use the battery to reverse the positive and negative electrodes. It is forbidden to connect the battery directly to the power socket; Do not discard the battery in the fire or heater; It is forbidden to directly connect the positive and negative electrodes of the battery to cause a short circuit; It is forbidden to transport or store batteries together with metals (eg hair clips, necklaces, etc.); Do not knock or throw, step on the battery, etc.; Do not directly solder the battery and pierce the battery with nails or other sharp objects; Do not strike the battery with sharp parts; It is forbidden to use or place the battery under high temperature (in hot sunlight or in a hot car), which may cause the battery to overheat, catch fire or malfunction, and shorten its lifespan; It is forbidden to use in places with strong static electricity and strong magnetic fields, otherwise it is easy to damage the battery safety protection device and bring unsafe hidden dangers; If the battery leaks, the electrolyte enters the eyes, please do not rub it, rinse your eyes with clean water, and immediately send medical treatment; If the battery emits odor, heat, discoloration, deformation or any abnormality during use, storage, or charging, remove the battery from the device or charger immediately and disable it. If the electrode is dirty, wipe it with a dry cloth before use, otherwise it may cause the contact failure function to fail; Discard the battery with insulating paper to cover the electrode to prevent fire and explosion.

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