18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah
polymer lithium battery

Primary battery

Rechargeable Battery

LR03 alkaline battery

no. 7 alkaline battery

release time:2024-05-10 Hits:     Popular:AG11 battery

  How to maintain no. 7 alkaline battery?

  When maintaining a car battery, be sure to turn off the power first and then turn off the engine, remove the negative cable of the battery when the vehicle is not used for a long time, and check it regularly; when installing a new battery, pay attention to whether the brand and model are consistent, and it must be tested before use. Before it can be used, the following is a detailed introduction on "How to maintain no. 7 alkaline battery and how to install new batteries."

  1. How to maintain no. 7 alkaline battery

  1. Turn off the power first and then turn off the flame.

  Some older models do not support automatic power-off after stalling. Before stalling, you need to manually turn off the electrical equipment in the car to develop good car usage habits and reduce the useless load on the battery.

  2. If the vehicle is not used for a long time, it is recommended to remove the negative cable of the battery, or start the vehicle for 20-30 minutes every week to charge the battery.

  3. Discontinuous startup

  The engine generally takes no more than 3-8 seconds to start. If it does not start successfully within 8 seconds, stop starting immediately and wait 15 seconds before starting again.

  4. Regularly check batteries and batteries

  Regularly check the battery electrode wiring to ensure there is no looseness, corrosion, etc.

  2. How to install a new car battery

  1. Before installing a new battery, if the battery brands and models are inconsistent, compare the dimensions and terminal positions of the new and old batteries, and carefully check the battery capacity and cold starting current parameters. Especially in northern winter, if the cold starting current does not match, it may cause difficulty in starting the vehicle.

  2. If conditions permit, a battery tester should be used for testing. After some batteries have been stored for a long time, although the voltage between the positive and negative electrodes is higher than 12V, the actual capacity is not enough, which is the so-called "virtual electricity". This The battery needs to be charged. It should be noted that measurement must be carried out when the ambient temperature is higher than 0°C, and charging must be carried out when the ambient temperature is higher than 5°C.

  3. Place the new battery into the installation position and secure it. For batteries with a breather tube, don't forget to remove the breather tube connector from the old battery and install it on the new battery. For lead-acid batteries, pay attention to the inclination angle of the battery not exceeding 30° during installation.

  4. When connecting the battery wiring, connect the positive terminal first and then the negative terminal. After installation is completed, anti-rust protective agent or acid-free grease can be sprayed on the battery terminals for protection.

  5. After checking and confirming that the tightening is reliable, you can remove the external power supply. Start the engine and check the generator voltage. You can measure it at the generator output or on the battery terminal. If you have special diagnostic equipment, you can also read the voltage data in the data stream. In addition, it is recommended to perform measurements at engine idle speed and 2000 r/min.

  6. For vehicles whose batteries are replaced due to discharge failure, the dormant current of the vehicle should also be checked. The traditional method is to put the multimeter in the current block, then connect it in series to the negative line of the battery, lock all door locks, turn off the ignition switch and activate the anti-theft system, and let it sit for a period of time until the current stabilizes.

  7. For vehicles equipped with a power management system, a sensor is installed in the negative line. Such vehicles can only use equipment such as clamp-type ammeters for current testing. Generally speaking, the vehicle's sleep current should be less than 50 mA (according to the model maintenance manual, for example, some BMW models only require less than 80 mA).

  8. After replacing the battery, you should also use the diagnostic tool to clear the relevant fault codes recorded in the system. For vehicles equipped with power management systems, such as vehicles from German brands such as Mercedes-Benz, BMW and Audi, it is also necessary to enter the new battery model into the power management system and reset the system.

  9. After confirming that the electrical system is checked correctly, install the battery protection device, remove the body protection device, close the engine compartment cover or luggage compartment cover, and return the vehicle to the customer.


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