|
========================
[Introduction] Can be repeated more than 500 times charging and discharging, economical and durable. Its internal resist the force is small, both the resistance is small, fast charge, but also to provide high current load and discharge voltage change is small, it is an ideal DC-powered batteries. ======================== [Uses] 1. Earliest devices used in mobile phones, ultra Branch battery types 2 large bag and vented nickel-cadmium batteries are mainly used in railway locomotives, mining, armored vehicles, aircraft engine starting or emergency power. 3. Cylindrical sealed nickel-cadmium batteries are mainly used in portable appliances such as power tools, shaving. Cordless phones, electric toys 4 small button nickel-cadmium batteries are mainly used in small current, low rate discharge. ======================== [Advantages] 1. Nickel-cadmium batteries can be repeated more than 500 times charging and discharging, very economical; 2. Small internal resistance, and available for a large current discharge, the voltage change is small when it is discharging, as a DC power supply is a battery of an excellent quality; 3. Completely sealed, so there will be no the electrolyte leakage phenomenon, completely without added electrolyte; 4. In contrast with other types of batteries, nickel-cadmium battery can withstand overcharge, or let go of power, easy to operate; 5. Placement for a long time does not cause performance degradation, you can restore the original characteristics very fully charged; 6. Can be used in a very wide temperature range; 7. Made because it uses a metal container, mechanically rugged; 8. Nickel-cadmium batteries manufactured under very strict quality management, have excellent quality Lai sexual. ======================== [Disadvantage] ------------------ 1 in the charge and discharge process if not handled properly, there will be serious "memory effect", so that the service life shortened. "Memory effect" (Memoryeffect) is a battery before recharging, the battery power is not completely exhausted, and the passage of time will result in the reduction of the battery capacity, battery charge and discharge process more obvious (discharge) in battery plates produce some small bubbles, over time these bubbles to reduce the area of ??the battery plates also indirectly affect the capacity of the battery. When the nickel-cadmium batteries after repeated several times maintain in low capacity put charge, if you have to do a larger amount of discharge, the battery will not work, this case called "memory effect". The memory effect of nickel-cadmium batteries, the most easily misunderstood. Discharge termination voltage is set higher video recorder, with the use of low voltage change may seem on the surface decreased, but the low discharge voltage can address this phenomenon by 1 or 2 times fully discharged. Ten times recommended charging after a discharge to prevent the memory effect. ------------------ 2. Cadmium is toxic, and therefore the nickel-cadmium batteries are not conducive to the protection of the ecological environment. Nickel-cadmium batteries have basically eliminated from the scope of application of the digital devices battery. ======================== [Instructions] Packaging into retail positive electrode protruding head and assembled using the positive electrode flat head packaging two kinds of nickel-cadmium batteries, in the capacity of no difference. In the charging circuit is similar to and following the introduction of nickel-metal hydride battery, the charging voltage of 1.6 times. Usually the number of charging of the nickel-cadmium battery 300 to 800 times, after the charge and discharge 500 times the capacity will decrease to about 80%. The nickel-cadmium battery memory effect than nickel-metal hydride batteries. It must be completely dead before charging, to ensure that the service life. ======================== 【Discharge characteristics 1. Discharge voltage discharge current in accordance with their somewhat different, in general, is about 1.2V; 2. Battery capacity Ah, mAh unit; 3. When the discharge reaches the limits of the discharge ending called "discharge termination voltage, and the discharge termination voltage of the nickel cadmium battery 1.0V/cell; 4. Using the temperature range at -20 ° C 60 ° C, within this range can be discharged. ======================== [Maintenance] The battery life is to use for some time after the charge and discharge capacity decreased to 80% of the nominal capacity before charge and discharge times and which can not be charged and discharged or complete failure is the battery life; Has not been a long time since the discharge rate of the battery is fully charged, the case of slow self-discharge phenomenon. Low self-discharge rate that the capacity decreased less allowed to stand for a long time. Out shooting program or news interview generally use portable recording devices, battery and portable video recording equipment for use, the ability to efficiently, to mention the quality of the continuous work long hours to ensure smooth shooting a crucial part. Normal functioning of the battery is closely related to the TV, audio-visual workers in their daily work, the proper use and careful maintenance, use and maintenance should arouse our attention. ------------------ 1, in the day-to-day work, you should be familiar with their type of battery belongs, it has the basic characteristics and performance. This guide us in the proper use and maintenance, has a very important meaning for the extended battery life is also very important. ------------------ Charging at room temperature is best controlled between 10 ℃ -30 ℃, right above 30 degrees Celsius is best to take measures to cool to avoid overheating occurs due to the battery's internal deformation; When the room temperature is below 5 degrees Celsius, resulting in insufficient charging affect the battery life. ------------------ 3, after the use of the battery after a period of time, due to the the discharge varying degrees and the aging of the presence of more or less charging insufficient performance, under normal circumstances nickel-cadmium battery in about 10 times after the charge-discharge cycles, one-off charging. The method is to extend the charging time than normal charging time is doubled. Specific examples as follows: SONY's BC - 1WA (B) charger NP-1 battery charging, the green light flashes for fast charging, the green light to stop blinking long bright fast charging end drip charging starts, extending drip charging time drip charging time of the charging time, the recharging time of 3-4 hours is appropriate. ------------------ 4, the battery charge and discharge should be strictly in accordance with the requirements specification operations and avoid long-term overcharge, over-discharge or often insufficiently charged. Not completely discharge, battery current depth of discharge of the long-term or short circuit is caused by the decline in battery capacity, shortened life expectancy. Over time the illegal operation will not only affect the use, and will certainly affect the capacity of the battery life. ------------------ Commonly BC-1WA (B) charger, the battery charging process once completed, not half-way power failure or after the end of the fast charge, the battery in a high temperature state, Re-power the charger again fast charging battery, and the results will cause overcharge. In use when the battery alarm indicator flashing alarm should be timely replacement of the battery, avoid excessive discharge of the battery. ------------------ 6, nickel-cadmium batteries unused for long periods Needless charge stored, but taking the battery discharge to the termination voltage (camcorder battery warning light is flashing) before the package is stored in the original packing carton or cloth, paper packaging, in a dry , ventilated place. ------------------ 7 to improve battery performance and extend battery life, the key is to avoid the memory effect and excessive discharge. ======================== 【Note】 1. Can be saved within a temperature range of -30 ℃ -50 ℃, but if it is the case of a long period of time, stored in 35 ℃; 2. The state of charge or a discharge state of preservation are possible, but the comparison discharge state enables the capacity earlier replies, and easier to be activated; 3. When the battery in place a long time, must be charged before use. ======================== 【Article is excerpted from: Baidu Encyclopedia】 【Network reprint / Just reference】 【Translation is by Goolge】 |
|
|
来自： LOFT生活 > 《Home Topics》
