Nickel-metal hydride batteries are short for metal hydride nickel batteries, which are mainly synthesized by hydrogen ions and metallic nickel. The nickel-metal hydride battery has a 30% more electricity reserve than the nickel-cadmium battery, and is lighter than the nickel-cadmium battery and has a longer service life. The disadvantage of nickel-metal hydride batteries is that they are much more expensive than nickel-cadmium batteries, and their performance is worse than that of lithium batteries.
In daily life, nickel-metal hydride batteries are mainly used in toys, photographic equipment, and various electronic equipment. Some large-scale nickel-hydrogen batteries have been used in electric vehicles and construction machinery. It can be said that nickel-hydrogen batteries are currently in addition to lithium ions. The highest utilization rate outside the battery is also the most environmentally friendly reusable battery.
Purchase method
The larger the capacity, the better. Consumers should choose the capacity of the battery according to their needs. For example, it is used in appliances such as photographic equipment and electric toys that require large current output. It is best to use a battery with a larger capacity. For ordinary radios, walkmans, various remote controls, etc., which require less output current, a nickel-hydrogen battery with a smaller capacity can be selected.
Pay attention to the performance and price ratio of the battery, don't blindly believe in foreign brands. In fact, the performance price ratio of many domestic famous brand batteries is higher than that of similar foreign products.
Note that the shelf life of the battery is due to the self-discharge of the nickel-hydrogen battery. Therefore, the shelf life of the nickel-hydrogen battery is generally about 9 to 12 months. Consumers should pay attention to the purchase of nickel-hydrogen batteries.
how to use
The polarity should not be reversed. The correct connection is that the + mark on the battery is connected to the + mark on the appliance, and the negative sign on the battery is connected to the mark on the appliance.
The battery should be short-circuited. It is not allowed to connect the positive and negative terminals of the battery directly with wires or metal.
When using it, it should be observed at any time. Once the battery leaks, swells and other defects occur, it must be taken out in time to avoid damage to the appliance.
Due to the memory characteristics of the nickel-metal hydride battery, it is necessary to charge the battery after it has been used up. The charging time should not be too long. When the charger prompts that the battery has been charged, the battery will be taken out.
Avoid long-term storage, because the battery itself has self-discharge phenomenon, so if you do not use the battery for a long time, you should charge the battery after it is used up, and then store it after the power is sufficient.
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