Rechargeable batteries of the main performance indicators

Safety performance indicators for battery failure are unacceptable. One of the greatest impact are explosions and leakage. The occurrence of explosion and leakage of the main and battery internal pressure, structure and process design (such as valve failure, lithium-ion battery protection circuit does not, etc.) and should be prohibited by incorrect operations (such as the battery into the fire) the. Means must discharge conditions, the sony np-f330 can be released from the total electricity consumption. In accordance with the IEC standard and GB, nickel cadmium and nickel-hydrogen batteries at 20 ± 5 ° C conditions, 16 hours after charging 0.1C to 0.2C discharge to 1.0V when the battery out of power for the rated capacity in order to express C;
lithium-ion sony np-f550 at room temperature, constant current (1C), constant voltage (4.2V) under the conditions of 3 hours after charging to 0.2C discharge to 2.75V when the battery out of power for the rated capacity. The unit of battery capacity mAh and Ah (1Ah = 1000mAh). To AA 2300mAh Ni-MH rechargeable sony np-f750, as an example, to express the battery 230mA (0.1C) charge 16 hours after 460mA (0.2C) discharge to 1.0V, the total discharge time of 5 hours, the release of the electricity for the 2300mAh. Correspondingly, if the 230mA current discharge, the discharge time is about 10 hours a day. Battery internal resistance is the current flowing through the sony np-f960 when the internal resistance. The internal resistance of rechargeable batteries is very small, with specialized equipment required can be measured more accurate results. General knowledge of the internal resistance of batteries are recharged state resistance, meaning that the battery is full when the electric resistance (the corresponding state discharge resistance are that the battery fully discharge the internal resistance. Generally speaking, the discharge state resistance Charge-state resistance than the large, and not very stable).
The greater the battery internal resistance, the sony np-f970 itself consumes energy more efficient use of battery lower. Great resistance at the battery charging very much heat, so that the battery temperature rises rapidly. On the impact of batteries and chargers are great. With the increase in the number of batteries used, because the consumption of electrolyte and battery internal chemical activity in the reduction of the internal resistance of batteries will be increased to varying degrees. The poorer the quality of the faster rise of the battery. Cycle life sony np-fm50 that can be experienced by the number of repeated charge-discharge. Battery life and capacity into a reverse relationship, in general Ni-MH battery cycle life of up to 500 times. High-capacity battery life is shorter, but up to 200 times. Cycle life with the necessary and sufficient conditions of release is closely related to the general the greater the charge current (faster charging), the shorter the cycle life. Electric charge to maintain the capacity that is often talked about self-discharge means that at open-circuit state, the sony np-fm70 storage of electricity at certain environmental conditions to maintain the ability. Mainly by self-discharge battery materials, manufacturing processes, storage conditions, and many other factors. Usually the higher the temperature, the greater the self-discharge rate.
Rechargeable sony np-fp50,acer laptop battery a certain degree of self-discharge is a normal phenomenon. To nickel-hydrogen batteries as an example, IEC standards for electricity after the battery is full, at a temperature of 20 ± 5 ° C, humidity of 65 ± 20% conditions, the open shelving of 28 days, 0.2C discharge time shall be not less than three hours (that is, the remaining electricity consumption is greater than 60%). Lithium-ion batteries and dry batteries self-discharge is much smaller. That the large current discharge capacity. Digital cameras, power tools, electric toys, such as electric appliances in particular, required large current discharge performance was excellent battery. Large current discharge performance of primary and sony np-fp70 ,acer btp-43d1 , travelmate 220 battery , acer btp-58a1 -related materials and production processes.