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Thread: The Right Way of Using the RC lipo Battery

  1. #1
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    The Right Way of Using the RC lipo Battery

    At present, lipo battery becomes the mainstream of model airplane batteries. In everyday usage, we probably need to use three steps (recharge, discharge and maintaining). Today, I will tell everybody the right way of using the RC lipo battery from three aspects.

    Recharge

    When you have a lipo battery, you are in no hurry to recharge, but read the battery specification carefully first. Recharge current, voltage and temperature can not be greater than the standard of the specification. What could happen if they are higher than the standard.
    1.Using batteries higher than recommended current may cause problems of the battery discharge performance, mechanical property and the safety performance, and may cause heating and leakage, can greatly reduce the battery life.
    2. Recharge voltage higher than recommended voltage may cause cell overcharged, usually caused by using in wrong charge way. (Like direct current charge)
    3.The recharge temperature here is not the temperature caused by recharging but the environment temperature during the process of recharging. When you find the surface temperature anomalies, you should immediately end the charging.

    Discharge

    1.Discharge current

    Discharge current should not exceed the maximum discharge current specified by the battery. (Formula is "the number of milliampere divided by a thousand and then times the number C" equals the maximum discharge current).
    2.Discharge temperature

    The battery must be discharged at the range of temperature specified by specification. When the surface temperature exceeds 60 degrees, should stop using, until the battery cool down to the room temperature.
    3.Over discharge

    Over discharge can cause fatal effect on the battery, so it is best not to make monomer battery voltage lower than 3.7 volts.
    Battery storage

    Battery should be stored in a cool environment. When you store battery for a long time (more than three months), suggest you put battery in the temperature of 10 to 25 degrees and low temperature, non-corrosive gas. The process of long-term storage, charging and discharging once every three months to keep the battery active, and ensure voltage in the range of 3.8 volts.

    Finally, if you don't mean to use a battery in the short term, be sure to remember that do not charge it fully before you keep it. This is to prevent the battery bulge in the process of preservation. The best maintaining method is storage. The voltage is monomer 3.8 volts.

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    Quote Originally Posted by vickyace View Post
    At present, lipo battery becomes the mainstream of model airplane batteries. In everyday usage, we probably need to use three steps (recharge, discharge and maintaining). Today, I will tell everybody the right way of using the RC lipo battery from three aspects.
    Technically it's, charge, discharge and recharge for either reuse or storage. New LiPo batteries are shipped partially charged and must be fully charged before use, once discharged they should be promptly recharged to the correct voltage for either reuse or storage.

    When you have a lipo battery, you are in no hurry to recharge, but read the battery specification carefully first. Recharge current, voltage and temperature can not be greater than the standard of the specification. What could happen if they are higher than the standard.
    Correction.

    LiPo's batteries should be recharged as soon as practically possible to minimize the amount of time they remain in a discharged state.

    1.Using batteries higher than recommended current may cause problems of the battery discharge performance, mechanical property and the safety performance, and may cause heating and leakage, can greatly reduce the battery life.
    Correction.

    Using a charging current higher then recommend will cause those problems.

    2. Recharge voltage higher than recommended voltage may cause cell overcharged, usually caused by using in wrong charge way. (Like direct current charge)
    Correction.

    Utilizing a charging current which is higher then recommended will cause cell damage, this is commonly caused by using a power supply versus a dedicated charger, a power supply that doesn't or cannot monitor the state of charge and control the amperage accordingly.

    3.The recharge temperature here is not the temperature caused by recharging but the environment temperature during the process of recharging. When you find the surface temperature anomalies, you should immediately end the charging.
    Correction.

    Recharge temperature is a factor of ambient temperature, plus the internal heating caused by the charging process and should never be allowed to exceed the manufacturers recommendations.

    Discharge current should not exceed the maximum discharge current specified by the battery. (Formula is "the number of milliampere divided by a thousand and then times the number C" equals the maximum discharge current).
    Also the time at maximum discharge should never exceed the recommended C time rating, if one exists, some high C rated cells have a time limit, which must be observed or the battery can be damaged.

    [quote]The battery must be discharged at the range of temperature specified by specification. When the surface temperature exceeds 60 degrees, should stop using, until the battery cool down to the room temperature.[quote]

    Correction.

    Do not exceed 60 degrees Centigrade or 140 degrees Fahrenheit.

    Over discharge can cause fatal effect on the battery, so it is best not to make monomer battery voltage lower than 3.7 volts.
    Correction.

    Do not discharge a battery lower than nominal 3 volts per cell.

    Battery should be stored in a cool environment. When you store battery for a long time (more than three months), suggest you put battery in the temperature of 10 to 25 degrees and low temperature, non-corrosive gas. The process of long-term storage, charging and discharging once every three months to keep the battery active, and ensure voltage in the range of 3.8 volts.

    Finally, if you don't mean to use a battery in the short term, be sure to remember that do not charge it fully before you keep it. This is to prevent the battery bulge in the process of preservation. The best maintaining method is storage. The voltage is monomer 3.8 volts.
    Semi-correction.

    Batteries should be stored in fire resistant containers (magazines) in a controlled low humidity environment, at a temperature between 10 and 25 degrees Centigrade or 50 to 77 Fahrenheit, the storage area should be free of any corrosive or flammable vapors. If the batteries are to be stored for longer than 3 months, they should be pulled out of storage and topped off quarterly. The batteries should be stored at the manufacturers recommended storage voltage for maximum life and if that information is not provided, they should be stored at a half charge voltage which is 3.6 volts per cell.
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    You are awesome! Thanks for your correction.

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