Proper usage of nickel-metal hydride rechargeable batteries

The memory effect of Ni-Mh battery

Nickel metal hydride batteries and nickel-cadmium battery has a memory effect, but far less than the nickel cadmium battery. So there is no need to charge every time for discharge operation (because of improper operation will damage the battery), only three months one time charge and discharge completely to alleviate memory effect.

This self-discharge rate of Ni-Mh batteries

Nickel metal hydride batteries for 25 ~ 35% (month), nickel cadmium battery for 15 ~ 30% (month). The lithium battery for 2 ~ 5% (month).Nickel metal hydride battery self-discharge rate is maximum, compared with other two kinds of battery and lithium battery discharge rate is extremely low.

C. nickel metal hydride battery charging mode

Hydride and lithium-ion batteries are not capable of charging. Therefore, nickel metal hydride batteries with constant current charging PICKCUT control mode in the charging voltage reaches the highest, stop charging for the best way. While the lithium battery using constant current, constant voltage charging is best, if the nickel cadmium battery charger - DV control way of the hydride and lithium-ion batteries will cause the influence of service life.

Nickel metal hydride battery charging method is introduced for the first time

_____ the Ni-Mh battery capacity is higher, the better

Different types of batteries, the higher the capacity, use the longer. Regardless of the volume and weight factors, of course, the higher capacity, the better.

But the same battery model, with the same nominal capacity (600 mAh, for example), actual measurement of the initial capacity is different: for example, a 660 mAh, the other one is 605 mAh, then 660 mAh is better than 605 mAh?

Actual situation may be because the electrode materials of high capacity of more than the increase of the initial capacity, and reduce the electrode is stable, the result is recycled after dozens of times, high capacity battery capacity failure quickly, and the low battery capacity is still strong. Many domestic batteries manufacturers are often in this way to obtain the high capacity battery. And users to use half a year after the standby time is so poor.

Civil the AA Ni-Mh batteries battery (5), generally is 1400 mAh, but also has a high capacity (1600 mAh), reason is the same.

Improve capacity cost is the cycle of life, manufacturers are not in the battery material modification and articles, it is impossible to truly "improve" battery capacity.

Nickel metal hydride battery charging method

Science of charging method can extend the service life of Ni-Mh batteries.

(1) in general, new Ni-Mh batteries only a few, buy after the first charge before use.

But if the battery factory time short, electricity, recommend recharging. New Ni-Mh batteries typically after 3-4 times of charging and use to play to the best performance.

(2) the memory effect of Ni-Mh batteries, though small, it is better to recharging after each use, and is a one-off, do not charge in a while and then filling in a minute. The important thing is this "longevity".

(3) When charging, pay attention to the heat around the charger. When not to keep the battery clean, especially at the ends of the contact, when it is necessary to use soft dry cloth graze. Long time no taking out the battery from the battery, put in dry environment.

(4) nickel metal hydride battery deposit in a few months later, will enter a state of "dormancy", the battery life is greatly reduced. If the Ni-Mh batteries have been placed for a long time, suggest that it is advisable to use slow charger to charge first. Generally Ni-Mh battery before charging, the voltage is below 1.2 V, full of the normal voltage at around 1.4 V. So it can be judged whether the battery is fully charged.

Life, in addition to the individual exceptions, is close to? The whole life of the car.

Battery is a chemical widely used in the world of "power", has a stable voltage, safe and reliable, low cost, wide applicable scope, high utilization rate of raw materials and recycling, etc. Is the production of all kinds of battery in the world's largest and the most widely used a battery.

The development of science and technology, the improvement of human life quality, the oil resources in crisis, the worsening ecological environment on the earth, form the new secondary battery and related materials in the field of science and technology and industry dual social background of rapid development. The pressing needs of the market, make the new secondary battery arises at the historic moment. Among them, the high energy nickel cadmium battery, nickel metal hydride batteries, nickel zinc battery, maintenance-free lead-acid batteries, battery lead cloth, lithium ion batteries、Lithium polymer battery popular, such as new secondary battery is widely used in China, the formation of industry and rapid development.

Johnson controls, inc., SONY, Sanyo, Hitachi and other well-known companies in China set up its own battery production base, also the market from big cities expanded to small and medium-sized cities, and even NEC, Bosch are mainly composed of software and appliances production enterprise also began to reach the business into the field of the production of battery. The influx of multinational companies, domestic battery production enterprises face more intense competition.

In addition, along with our country automobile and motorcycle ownership further expanded, and the country's main urban electric bike driving ban, which will further stimulate the lead-acid battery products in the field of consumption.

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