What battery do I need?

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Mooch

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  • May 13, 2015
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    sonicbomb

    Vaping Master
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    Feb 17, 2015
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    With a regulated mod the resistance of the coil is essentially irrelevant.
    Regulated mods separate the input and output voltage, in other words they separate the battery from the atomizer. The only relevant value is the wattage, and the remaining voltage in the battery. As the voltage falls, the mod will increase the amp draw to maintain the selected wattage. You need to know the amp draw at full charge, and when the battery is discharged as this value will be the highest. Most regulated mods are about 90% efficient, so you will also need to factor this loss into your calculations as it will marginally increase the amount of amperage pulled from the battery.

    To find the amp draw use I=P/V (-10%)

    Eg.
    75w divided by 4.2v equals 17.8 divided by 0.9 = 19.8 amps
    75w divided by 3.2v equals 23.4 divided by 0.9 = 26 amps

    With multi battery devices, simply calculate the amp draw then divide by the number of batteries.

    If you are using a single battery mod and you go with either of the batteries Mooch suggested, I would stay under 60 watts to be on the safe side.
     

    DaveP

    PV Master & Musician
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    May 22, 2010
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    Choose from the batteries and vendors Mooch listed. The prices will be surprisingly fair and you will get a REAL, authentic battery, not one that's been relabeled to be something it's not.

    With the coil you are vaping, amperage rating is more important than MAH. The two Mooch recommended will give you a balance of both safe current ratings and vape time for your low resistance coil and wattage levels.
     

    Acies

    Senior Member
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    Jan 21, 2015
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    Acies

    Senior Member
    ECF Veteran
    Jan 21, 2015
    92
    28
    USA
    With a regulated mod the resistance of the coil is essentially irrelevant.
    Regulated mods separate the input and output voltage, in other words they separate the battery from the atomizer. The only relevant value is the wattage, and the remaining voltage in the battery. As the voltage falls, the mod will increase the amp draw to maintain the selected wattage. You need to know the amp draw at full charge, and when the battery is discharged as this value will be the highest. Most regulated mods are about 90% efficient, so you will also need to factor this loss into your calculations as it will marginally increase the amount of amperage pulled from the battery.

    To find the amp draw use I=P/V (-10%)

    Eg.
    75w divided by 4.2v equals 17.8 divided by 0.9 = 19.8 amps
    75w divided by 3.2v equals 23.4 divided by 0.9 = 26 amps

    With multi battery devices, simply calculate the amp draw then divide by the number of batteries.

    If you are using a single battery mod and you go with either of the batteries Mooch suggested, I would stay under 60 watts to be on the safe side.
    Thank you very much for the information.
     
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    Acies

    Senior Member
    ECF Veteran
    Jan 21, 2015
    92
    28
    USA
    Choose from the batteries and vendors Mooch listed. The prices will be surprisingly fair and you will get a REAL, authentic battery, not one that's been relabeled to be something it's not.

    With the coil you are vaping, amperage rating is more important than MAH. The two Mooch recommended will give you a balance of both safe current ratings and vape time for your low resistance coil and wattage levels.
    Yep, I am going with the samsung 30Q.
     
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