Advice 1: How to check battery tester

With a tester or multimeter you can clean a number of household measurement in the home, for example, to check the voltage in the socket, to determine the performance of the battery or accumulator, an electric light bulb.
How to check battery tester
You will need
  • - the battery;
  • - multimeter.
Instruction
1
Connect the probe of the tester to the battery: connect in parallel: plus to plus and minus to minus. Next, install the switch kind of works for values of "Amps – DC". To check the batteries, do not use position "volts".
2
To test battery voltage enable pull-up resistor. In the case when the tester is included in the voltage measurement, there will be a significant input impedance. And then the battery (almost no load) will show almost full or full voltage, for example, 1.5 volts. If it is faulty/unfit, when it is installed in any device, the voltage immediately starts to decline.
3
Set the switch kind of works on the tester in a mode of constant current (amps) at the maximum limit. On the multimeter, this mode will be called "test Mode DC voltage". Lock the battery for half a second, so you have time to fix the readings. Longer to keep it not worth it, it can cause a short circuit and adversely affect the operation of the power supply. Read the current device to determine the suitability of the batteries.
4
Draw conclusions about the health of the battery pack after the voltage measuring by the following characteristics. Current dvenadcatiletnih batteries shall be not less than two and a half amps, cheap finger show the result of 2-2,5 A, and those that are more expensive, for example, Duracell or Energizer, should show not less than 4-4,5 A.
5
If the measurement result is less than one amp, do not throw them away, use such instances in the remote control of media players or TVs. Also, remember that battery voltage is half a volt, and the battery is 1.2.

Advice 2: How to choose batteries

To choose the batteries should be calculated from the power of the devices in which they are installed. For remotes or a flashlight will fit the lowest cost batteries, and for instruments such as camera or player, will require better and more expensive power sources.
How to choose batteries
Instruction
1
For simple devices (remote control, timer, tester, etc.) suitable salt of the batteries. They have a relatively small value, however, suitable for powering low power devices. These power sources are marked with a letter R. the Second digit of the ID indicates the size of the product.
2
If you choose the elements for devices with great energy consumption (cameras, iPods, etc.), note on alkaline batterieswith greater capacity and long service life. Such products are marked with the abbreviation LR.
3
Before purchasing batteries of any brand pay attention to the quality of printing packaging products and labels. On the fake sources may be incorrectly written the name or poorly applied paint.
4
When buying view the expiration date of the item. Do not purchase products whose life is about to end. Otherwise the battery may leak and ruin the device in which it is used. The longest work elements used in the first year after their manufacture.
5
Batteries marked "photo" have a high capacity and is designed for use in cameras. These products are much more expensive, however they have a longer service life. Photosof batteries can more quickly give energy, which positively affects the speed of the device.
Note
Only trust a proven companies. Do not buy items whose names are unknown to you. Most high-quality batteries made from Kodak and Energizer, but among the lineup of these manufacturers found low-quality goods.
Useful advice
Do not leave batteries in the battery compartment of a device if you rarely use it.

The battery is different from alkalinous weight. A power source having a shorter lifespan, will have a lower weight.

Advice 3: How to check wire tester

Tester, or avometr, called the combined instrument panel, replacing the voltmeter, ammeter and ohmmeter. A digital option is called a multimeter. One of the applications of such a device is to check the integrity of the conductors, in the jargon called pozvonki.
How to check wire tester
Instruction
1
Disconnect the probe avometr or multimeter from any external circuits. Plug the black probe plug into the common socket of the tester, and red or white (depends on the model of the device) to the socket intended for measuring the resistance at the coarsest limit.
2
Conductor, the integrity of which you want to check, disconnect both sides from any external circuits. If stranded cable is checked, this applies to all the constituent conductors.
3
Switch multimeter select toughest of the limits of measurement of resistance. In the presence of the sound mode transistors turn on.
4
Connect the probes muydu themselves. Have avometr arrow pointer should deflect approximately to the last division, and the digital multimeter on the indicator should receive a zero (can display numbers 1 or 2 in the Junior category). If mode is enabled the sound check, hear a squeak.
5
Got switch tester, without opening the probe, the regulator set the arrow exactly on the last division of the scale (for ohmmeter it first).
6
Disconnect the test leads, then connect them to the wire. If it's intact, the instrument will show zero resistance.
7
For multi-core cable, the conductors of which do not differ from each other by color insulation tester or a multimeter to find the start and end points of each of the cores. Label them with pieces of colored tape. It is useful to check the cable for shorts between conductors. If the mode of operation of the cable such that the circuit threaten faults or fire, this check at all required.
8
Disconnect the appliance from the cable. The cable connect to the circuits of the device, in which it will be used. Not to be confused with its conductors. A multimeter or tester switch in a mode in which his battery is not consumed energy.

Advice 4: How to change the battery in hours

All watches can be divided into electronic, mechanical, electro-mechanical and electro-mechanical. Any timepieces that run on batteries (batteries), sooner or later will require replacement of the power supply. In this process there are a number of tricks to consider.
How to change the battery in hours
Instruction
1
It is best to replace the battery in a specialised workshop. First, independently changing the battery, you can damage the hull, which most modern watches offer not just. Secondly, you can put low quality battery, while in the workshop experts will advise you on a reliable and durable option that is best suited for your hours. Only large shops can ensure that procured items they supply not fake.
2
In the workshop, the expert should not only replace one battery to another, but also to check the battery that is replaced; to check the clock on the current consumption; to determine the exact time; to ensure tightness. Some watches require after replacement to make contact in a certain place, to start the clock.
3
If you decide to change the battery in the watch yourself, pay attention to the following rules. Experts recommend using only batteries of silver oxide. Most reliable firms – Sony, Varta, Maxell.
4
Remove the back cover of the watch. Usually it is necessary to use a thin knife, prising them cover in the place where there is a special recess. Look at the number of batteries and always change into the same.
5
Most often the battery should be installed so that the room was upstairs. In any case, check the polarity and install battery clearly on it.
6
As a rule, the period of work of high quality batteries designed for two or three years, but this figure is affected by the size of the battery and clock type.
Useful advice
Never leave a dead battery inside the watch – it can leak, that is due to the chemical reaction of the oxidized electrolyte will escape.

Advice 5: How to change the battery in the motherboard

A computer can happen strange things. Loses date and time every time you turn off the computer, when the computer appear "strange" reports that the BIOS changes, although you do not change it. These symptoms indicate that your computer is out of juice. This battery is located in a special slot on the mother Board, and replace it with a snap.
How to change the battery in the motherboard
You will need
  • Computer, lithium battery CR2032, screwdriver, basic skills on work with computer.
Instruction
1
Before you change the battery, it should buy. You need to buy the battery CR2032. It looks like a flat tablet and is sold in many computer stores.
2
Unscrew the screws fixing the side cover, and remove it. Open access to the parent Board. Find battery. It's easy, it is usually installed in the slot with the label facing upwards, and at other parts on the mother Board no.
3
Remove the old battery. To do this, carefully bend the latch on the socket, and the battery lifts off the edge. Grab the battery with your fingers and pull easily. Performing these procedures, be very careful not to damage the surface of the motherboard and adjacent to the socket of the battery details.
4
Install the new battery into the motherboard. The battery should be located smooth surface with the label side facing upward. The latch should securely lock it in the socket.
5
Close the computer cover and turn it on. Install, if necessary, settings in the BIOS and configure the date and time. Check stopped to reset the computer settings when turned off.
Note
Battery replacement must be performed with the power off of the computer.
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