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Thread: Li-Ion Battery Question

  1. #1
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    Li-Ion Battery Question

    Hi,

    I just got my new Sony VTC5 30 Amp 2600 mAh batteries and my new charger. Whilst my batteries were charging I read this on an Ebay seller store about L-ion batteries.

    "When charging protected batteries, always re-insert or pull back the batteries several seconds after charging commences.

    This breaking of connection / interruption of the charging cycle will help ensure the over discharge protection mode of the battery is properly released and help prevent overloading the charger.
    This step is especially important when the batteries are in protection mode or are fully drained."

    I have two questions -

    1. Is this information true in your opinion and is it critical? If so I am too late to do it. My batteries are already charging.

    2. And, are my type of batteries protected batteries?

    Thank you.

  2. #2
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    never heard of it, sorry mate. but interested in others thoughts behind this.
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  3. #3
    fad
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    Quote Originally Posted by Toe Tall Noob View Post
    Hi,

    I just got my new Sony VTC5 30 Amp 2600 mAh batteries and my new charger. Whilst my batteries were charging I read this on an Ebay seller store about L-ion batteries.

    "When charging protected batteries, always re-insert or pull back the batteries several seconds after charging commences.

    This breaking of connection / interruption of the charging cycle will help ensure the over discharge protection mode of the battery is properly released and help prevent overloading the charger.
    This step is especially important when the batteries are in protection mode or are fully drained."

    I have two questions -

    1. Is this information true in your opinion and is it critical? If so I am too late to do it. My batteries are already charging.

    2. And, are my type of batteries protected batteries?

    Thank you.
    Yes, some protected batteries have circuits that charge better (on some chargers) if you remove & reinsert.

    No, the VTC5 batteries are not protected. If they were you'd likely not be able to run them above 10 amps.

    So: interesting, but not relevant to you.

    Enjoy your batteries.

  4. #4
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    That's from Supersports600.

    Your batteries are unprotected so probably no need.

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  5. #5
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    Whilst on the topic of battery charging, my Soshine SC-H2 charger's LCD screen is telling me my Sony VCT5 batts are at 1927 mAh at full charge. The battery casing says 2600 mAh. Is it perhaps just not a very accurate amp meter on the charger or are the batts actually at 1927 mAh? If they are at 1927 mAh, does that matter? Hope someone can help.
    Thank you.

  6. #6
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    Quote Originally Posted by Toe Tall Noob View Post
    Whilst on the topic of battery charging, my Soshine SC-H2 charger's LCD screen is telling me my Sony VCT5 batts are at 1927 mAh at full charge. The battery casing says 2600 mAh. Is it perhaps just not a very accurate amp meter on the charger or are the batts actually at 1927 mAh? If they are at 1927 mAh, does that matter? Hope someone can help.
    Thank you.
    The mAh shown on the H2 is only the charge put into the battery by the charger. So if you charged them from half full it would display 1300mAh, or if you only discharged the battery a little it could show 20mAh.

    I hope that makes sense?
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  7. #7
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    Hi, anyone got a link to explaining in simple as possible terms about protected batteries, and which mods to use them in, and using unprotected as well, in which mods etc? I am finding searching hard/ getting too many results to sift through.
    I should stress, " layman terms". I find this stuff really confusing.

  8. #8
    fad
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    Battery protection circuits can make sure the battery:

    - is not discharged below a safe level (3.2 - 3.0 volts)
    - is not charged above a safe level (4.2 volts)
    - is not discharged at too high a rate

    In unprotected batteries it's up to you to manage the battery.

    Overcharge it and you'll ruin it. Keep using it in a mech mod till the voltage
    drops well below 3v and you'll ruin it. Build a coil with a resistance too low
    for the Constant Amp rating and you'll end up ruining it (and possibly yourself)

    So why use unprotected batteries? High drain amp limits.

    You can get protected 18650 that offer 3400mah capacity, but are protected
    and max out at 5amps. Great for running your clearos for a couple of days.

    On the other hand batteries like the Sony VTC5 don't have protection circuits
    and offer 30 amp continuous discharge rates. Meaning you can build your
    dripper down to 0.3 ohms

    Protected batteries:
    + long run times
    + can't overcharge, can't over-discharge
    - moderate amps
    = use for 1.2 to 2 ohm clearos or kayfuns on regulated mods

    Unprotected batteries:
    + lots of amps
    - shorter run times
    - can be over charged and over-discharged
    = use for low ohm drippers on mech mods or new generation regulated mods
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  9. #9
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    Quote Originally Posted by fad View Post


    Protected batteries:
    + long run times
    + can't overcharge, can't over-discharge
    - moderate amps
    = use for 1.2 to 2 ohm clearos or kayfuns on regulated mods

    Unprotected batteries:
    + lots of amps
    - shorter run times
    - can be over charged and over-discharged
    = use for low ohm drippers on mech mods or new generation regulated mods
    Thank you, that whole post was great. REally helpful and clear.
    I hope you may answer a couple more queries.

    1. Re: protected batteries. That resistance range you list of "1.2 to 2 ohms" , If the coils has higher is that OK? If the coils has lower than 1.2 ohms , is that OK on a regulated VV/VW mod?

    2. RE: unprotected. They are still OK in regulated mods aren't they , and are they needed in the newer high watt VV/VW mods coming out now?
    Last edited by LimeB; 08-09-14 at 01:01 PM.

  10. #10
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    LimeB likes this.

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