Home use 5th No./7th Battery purchase and usage strategy

found that many consumers have little knowledge of the battery, or even unclear 5 number and 7 number of batteries, the purchase and use of a lot of misunderstanding, spent a lot of money wronged. Determined to write a family commonly used 5 ,7 Battery purchase and use Raiders for the general consumer reference. Other models of batteries, if you need to add later.

One, the common Battery model: No. 5 Battery,No.7 Battery

The most commonly used battery in the family is the No. 5 Battery and the No. 7 battery .

Battery Number 5 is also known as AA Battery, the most widely used, size: diameter 14mm, height 49mm. The weight is about the same as the adult forefinger.

Battery Number 7 is also known as AAA battery, size: diameter 11mm, height 44mm. The weight is about the same as the adult pinky.

The 5 battery is longer and thicker than the number 7 battery, in general , the Home appliance remote Control with the 7 number of batteries, the camera, razor, wall clock with the 5 Battery. Toy battery models are miscellaneous, you'd better confirm the original type of battery and then go to buy.

Second, the type of commonly used batteries: alkaline batteries, carbon batteries, rechargeable batteries

Household batteries are generally divided into dry battery and rechargeable battery two kinds. Dry battery is a disposable battery, can not recharge, commonly used dry battery type has alkaline battery and carbon battery, operating voltage 1.5 volts. The rechargeable battery is a battery that can be recharged with a rechargeable charger, and now uses a wide range of rechargeable batteries that are NiMH batteries that operate at 1.2 volts.

The key question is, should you buy alkaline batteries, carbon batteries, or rechargeable batteries?

Many customers do not know the difference between carbon batteries and alkaline batteries. Customers have purchased carbon batteries used on the camera, back to question why the use of 2 times there is no electricity?

The price of a single alkaline battery is 2-3 times the same as the brand's carbon battery , but the capacitance is at least 3 times the size of the brand's carbon battery . Alkaline batteries are often used in large power consumption or high termination voltage of the electrical appliances, such as cameras, toy cars, flash, razor, electric toothbrush, wireless mouse, car remote control, doorbell, door locks, probes, LED lights, beauty apparatus, blood pressure monitors, microphones and so on. How to understand the termination voltage requirements are relatively high? For example, some high-end cameras, microphones, car remote control, typical of some of Canon's camera and car remote control, there is a low voltage protection function, when the battery voltage below a certain value, stop working to protect the appliance. At this time, the operating voltage in the 1.2 Volts Most of the rechargeable batteries can not drive these appliances, while the discharge voltage in the 1.5 volt alkaline battery is still able to work. This is why a small number of high-end appliances recommend the use of high-quality alkaline batteries.

Since alkaline batteries are more cost-effective than carbon batteries, why buy carbon batteries? Carbon battery is suitable for electric appliances with small working current and low power consumption, such as remote control, clock, radio, electronic weigh, calculator, game console, etc. Many wall clocks, electronic weighing, remote control, small toy game consoles are designed according to the characteristics of the power supply of carbon batteries, require the use of carbon batteries, if the use of large operating current rechargeable batteries and alkaline batteries, may not be able to move these appliances, or work is not normal, even burn circuit. A watchmaker who sells watches and clocks tells me that many clocks and watches cannot use alkaline batteries or rechargeable batteries, only carbon batteries.

Although the working voltage of the rechargeable battery is only 1.2v, it can replace the alkaline battery in most cases because of the low internal resistance. Good quality rechargeable battery can be repeatedly amplified hundreds of times, coupled with a charger, although the first purchase of a large amount, but the price is higher than alkaline batteries, but also more environmentally friendly. Of course, because it takes time to recharge, and the self-discharge of a rechargeable battery is much more serious than a disposable battery, charging the battery is more troublesome than a disposable battery.

To summarize, if you need to buy batteries for power-hungry appliances such as cameras, toy cars, razors, etc., it is advisable to consider rechargeable batteries and alkaline batteries, so it is best not to cheap buy carbon batteries. Low-power remote control, clocks, radios, etc., cheap carbon batteries enough. Home with high-end voltage appliances, recommended to buy high-quality alkaline batteries or rechargeable batteries.

Third, the purchase of rechargeable batteries and chargers

1. Rechargeable battery

(1) Capacity of rechargeable battery

Unlike disposable batteries, rechargeable batteries are divided into different sizes according to their capacity. Such as5number of rechargeable batteries are1300,1800, -,2200,2400,2600mah equal capacity,7number of rechargeable batteries are the, -,850, +mah equal capacity. Simple to understand, -the mah rechargeable battery is $MA discharge Current, can workTenan hour, orTenMA Discharge Current, working $hours. But the actual use, due to battery quality, electrical quality, the use of various factors such as the use of time to be discounted.

A Chinese characteristic phenomenon is that, as consumers pursue large-capacity batteries, the domestic market, whether it is home5number and7Battery, cell phone lithium battery, mobile power, is filled with large capacity and low-priced batteries, such as theMa-time5number of batteries, -Ma-time7number of batteries. In fact, now the world's most technologically advanced battery manufacturers, can produce the most cost-effective and the cycle of the use of stable battery is -Ma-time5number of batteries and -Ma-time7number of batteries. Because increasing the battery capacity is bound to increase the cathode material, anode material and electrolyte concentration, but because5number of batteries and7The size of the battery is international standard, the space inside the battery has the limit. If there is no revolutionary battery raw materials, then forcibly increased capacity, it is bound to sacrifice battery life and safety. So the market on the high capacity of the battery, either with a low-capacity battery instead, or life is short, and security concerns, blindly buy a virtual high-capacity battery instead of the outweigh the cost.

(2) Self-discharging of rechargeable battery

After the rechargeable battery has been placed for a period of time, the power will gradually decrease, called self-discharge. Bad quality of the battery, self-discharge phenomenon is serious. In this way, rechargeable batteries need to be recharged frequently in order to be used, thereby reducing battery life.

Low self-discharging rechargeable batteries are also emerging. High-quality low self-discharging battery, is said to be placed 2 years later, but also to maintain 80% above the power, greatly facilitate the daily use of consumers, but also improve the battery life cycle. Of course, low self-discharge cells will cost more than normal rechargeable batteries.

If you use a rechargeable battery that is not very frequent and will be placed for a period of time after using the battery, it is recommended to consider purchasing a low self-discharging battery. If you use a rechargeable battery at a high frequency, buy a normal rechargeable battery.

(3) How to buy the right rechargeable battery

The larger the battery capacity, the better? Wrong!

Consumers need to buy batteries based on the amount of electrical power consumed. The larger the electric capacity of the battery, the instantaneous work current is large, so the requirements of the electrical circuit high, bad will burn the circuit. At the same time, the loss of the battery itself is also large. Batteries with large electrical capacity, the number of charging cycles relative to less, that is, a relatively short life.

        Therefore, electrical appliances under medium power consumption, such as mp3 1300-1800 mah 5 600-800 mah 7 2000-2600 mah 5 Battery or 850-1000 mah 7 number battery.

Another factor to consider is that some electrical battery compartment in accordance with the design of disposable batteries, large-capacity rechargeable battery size due to slightly wider slightly larger, it may be difficult to put in. For example, many KTV purchased the microphone, placed 2400 mah battery is very tight, many times after the release of the battery outside the gum intestines destroyed, thereby greatly reducing the battery life.

In a word, the right battery is the best.

Another question the customer likes to ask is: how long will this battery take? This is a very difficult question to answer. Although a simple formula can be used to estimate the use time: Use time = battery capacitance ÷ electrical operating current x discount factor α (0<α<1)

For example, a toy car motor operating current is 100mA, the use of the capacity of a mah battery, theoretically can be used in 100÷= three hours, but consider the toy car's own load, conversion efficiency, battery quality, the use of the environment and other factors, the actual use of time to be greatly discounted, may be the discount coefficient α only 0.2, that is, the actual use of time is less than 6 an hour. The specific use time can only wait for the practice to be genuine.

2. Charger

(1) Classification of Chargers

The charger is generally divided into slow charge (standard charge) and fast charge, the charging time of slow charge in about ten hours, fast charge the fastest can only less than a minute. Both chargers have their advantages and disadvantages.

Slow charge on the battery damage is small, can be filled with full power, but the charge time is long, simple function. Quick charge on battery damage is relatively large, charging may not be full, but the charge time is short, and generally have more functions, such as liquid crystal display, full turn light hint, temperature protection, charging time protection, charging voltage protection and even to battery discharge.

The charger can also be divided into 2 slots,4 slots or even more slots specifications. 2 slot charger generally can be charged 1-2 section 5 or 7 of the battery, ordinary 4 The slot charger can be paired 2-4 batteries, it is generally not recommended to mix different batteries to charge. An expensive 4 - slot or more-slot charger can charge a single battery and allow fake.

(2) How to choose the right charger

Met several customers, that the previous charger was broken. After the purchase of a new charger, it is still not available, the result is that the rechargeable battery is broken. Before you buy a new charger, you need to try a good rechargeable battery to see if the previous charger is really out of the question. In general, when the battery is charged, the charger's display light is on, and the charger and battery heat up, indicating that the charger is good. Conversely, if the display light is not lit, or charging not to go into the electricity, the charger must have a problem.

If you do not have too high a charging time, we recommend that you use the standard charger. Most standards are charged from cost savings and are not filled with turn-on lights or lights-out cues. In fact, turn the light hint function is not very necessary, generally speaking, at 6 o ' night start charging, the next morning pick up can be used. If you have a charging time requirement and want to use more features, you can purchase a quick charger.

The charging time can be estimated according to the following simple formula: Charging time = battery Capacity ÷ charger operating current x1.2. For example, the 5 mah battery in the number 5 Battery Charging current is 200mA charger Charging, The charging time is approximately x1.2=12 hours.

We recommend that you use a high-quality charger. Because the bad quality of the charger on the battery damage, charging is not full, there is a security risk. For example, a good charger has overcharge protection, and the battery is filled with a trickle (low current) charge, even if the charging time is too long to worry about.

Iv. use and maintenance of batteries and chargers

Many customers do not know, battery and charger damage in many cases is caused by bad use.

1. Rechargeable battery after hand, need to recharge 3-4 times, to fully activate the battery, to achieve the best use of the state. Before the first charge, it is better to run out of residual power, the first time to charge a longer than the recommended charging time. Charge the best one-time full, do not charge a bit and then recharge.

2. Battery use and charging must be positive or negative, or may burn out batteries or electrical appliances. Do not attempt to charge the disposable battery.

3. When you need to use multiple batteries simultaneously, it is best to choose a battery with consistent capacity and status, which is consistent with the short board effect. For example, it is best not to use both 1300 mah and 1800 mah batteries, and not to use both new and old batteries, which will reduce the utility of large-capacity batteries or new batteries.

4. Charging charger and battery heating is normal, so please pay attention to the surrounding do not have flammable and explosive items. If the charger and battery is too hot, you can unplug the power to stop charging, wait for the temperature to drop, then recharge.

5. If the battery is not used for a period of time, it is advisable to take out the battery and store the battery and charger in a dry place, preferably with a battery compartment. Do not short circuit when the battery is placed, a customer once put the battery and a large string of keys together, resulting in a short-circuit, battery damage.

6. When the battery is taken from the charger, take care of the light. If the battery is brutally keyed from the charger, it will soon damage the battery gum intestines and affect the battery life. This KTV customer especially should remember.

Home use 5th No./7th Battery purchase and usage strategy