Description

Model: 501230

Capacity: 130MAH

Voltage: 3.7V

Size: thickness 5M width 12MM length 30MM

Note: This battery does not have a protective panel. The following links are required to protect the panel.

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The life of one, MP3 lithium battery

Like the cell phone lithium battery, the life of the MP3 built-in lithium battery is about 300-500 times deep and deep (national standard). That is, after one or two years of use, the playing time will be obviously shortened, and some even can not be used completely, then you must replace the new battery to use. And almost all the miscellaneous machines do not have after service, in order to reduce the cost, in the installation of the B battery is used in the battery (factory products, defective products, grade), three months after the use of the battery performance may be straight down, shorter life.

Two, MP3 lithium-ion battery playing time

The playing time is related to the battery capacity and the power consumption of the machine. The larger the screen, the more power it consumes and the larger the battery. The capacity of MP3 lithium battery below 1.2 inch screen is generally in 150--300mAh, the time of playing after full of electricity is about 8 hours, the capacity of the MP3 of 1.5-1.8 inch screen is generally 300--1000mAh, the battery capacity of the 2.5 inch screen MP4 is about 1800mAh. The miscellaneous card machine does not use after service. In order to reduce the cost, it is used in B product electricity in loading the machine. The general capacity of the pool is 20% lower than that of A, and the playing time is shorter.

Three, how to tell my machine is a battery problem?

If your MP3 Bluetooth device has the following phenomenon, the battery must be replaced.

1. It has been used for more than one year, and the playing (standby) time is obviously shortened (about 3 hours), indicating that the battery capacity is reduced and the service life is up.

2, unable to turn on or power down: the battery is short circuited or has poor quality, the gas is rising or the internal resistance is increasing, and the battery is invalid.

3, the broadcasting effect is worse: the internal resistance of the battery increases and the output voltage is too low.

4, can not be played at all: Battery ring or protection circuit ring, battery failure.

Note: if MP3 starts to be normal and later found a failure, more than 90% is the battery reason, because the other electronic component rings are less likely, and the battery is the consumable, the quality is uneven, and the charger is generally high output voltage, not the limited pressure (4.2V) function for lithium battery, completely on the battery. Line protection is easy to damage. A valuable MP3 can not be used for a small battery reason is very uncomfortable.

Four. How do you know the battery model of the machine?

1, open the machine: to boldly open the machine, MP3 inside is actually very simple, do not worry that it will damage the machine. Check the machine carefully, see if there is a screw, there is a small screwdriver to open it, no one is generally the shell glued or a buckle, with a knife along the seam after a week can be opened or warped, a careful point, the general shell will not damage, attention to key buttons and so on.

2, open to see the battery, if the battery is silver, it is the polymer lithium battery, the outside is aluminum plastic film packaging, if other colors are steel shell or aluminum shell lithium battery, the outer skin is PVC plastic sleeve, blue color, and black.

3, look at the battery model: the general battery is sprayed with the model (in fact, the size of the battery), record the above words can, if the size is not used to measure the length and thickness, record.

Five. How do you buy the battery you need?

First disassemble the battery to see the battery (self will detachable, not to find the maintenance technician dismantling), most of the batteries are marked with the model, in fact, the model is the high (thick), wide, long, model of the model in the next table in the store, if not, can contact the store to match. If you still do not match, you can use the similar model, that is, similar smaller one, for example, you are 552030, not in the table, can be 052030, only the height (thickness) of 0.5, with a piece of thick 0.5 of the paper put up and put up in order to prevent the movement of the machine, such as the machine has space, and vice versa to find a similar larger point. Yes. If the battery does not have a model, or can't see it, it is easy to use a ruler to measure the length, width and height. Then the same method is found in the table. The size is not considered, and it can be matched. It is rather small, not super, because once the big, not installed, freight can be more expensive than the battery itself. Also, a small number of machines are not used for lithium batteries, the voltage is not 3.7 (3.6) V, may be 1.2V or 2.4V, must consult the owner.

Six. Replace the battery

The red line of the battery is the positive pole, the black line is the negative, the original battery is welded down, some of the main board do not mark the "+ -" pole, it is best to make a mark before welding. The new battery is welded on the original positive and negative position. If you can't do it without ferrochrome, you can get help from your master in the place where there is electric soldering iron outside.