INR18650-3000mAh Li-ion Rechargeable cylindrical battery,18650 battery,High security lithium ion battery,power tool lithium ion battery supplier
Characteristic of Long life 18650 battery
Unless otherwise specified, all tests stated in this specification are conducted at temperature 23±3°and humidity under 65%.
b. Measuring equipment
(1) Amp-meter and volt-meter
The amp-meter and volt-meter should have an accuracy of the grade 0.5mA and mV or higher.
The slide caliper should have 0.01 mm scale.
The impedance meter with AC 1kHz should be used.
c. Standard charge
charging the cell CCCV with charge current 0.5C, constant voltage 4.2V and 150mA cut-off in CV mode at 23℃ for capacity.
d. Standard discharge capacity
discharge current of 600mA(0.2C) with 2.5V cut-off at 23℃within 1hour after the standard charge.
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