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Difference: Grey & Blue TrustFire(s) ?

  • MajeedM Friday, January 16, 2009 8:57 AM Reply
    Hi there,

    I would like to ask if there is any difference between the Blue 18650 TrustFire (SKU 6979) and the Grey (SKU 19770) one, Isn't the grey ones protected? the description says that it doesn't have a protection PCB, I want these batteries to rebuild a laptop battery I will need at least 2200 mAh capacity or higher, Which one of these two do you recommend, They need to be unprotected cells.

    Hope any one can help me with this.

    Regards.
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    post edited by MajeedM on 1/16/2009 at 8:58 AM
  • MajeedM Friday, January 16, 2009 11:06 AM Reply
    Anyone have an input about this ?

    Thanks in advance.
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  • captjimjam Friday, January 16, 2009 11:17 AM Reply
    I recommend the grey trustfire ones.
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  • MajeedM Friday, January 16, 2009 11:25 AM Reply
    Do you think that they are better than the blue ones ?

    Thanks
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  • gearhounds Friday, January 16, 2009 11:52 AM Reply
    Depends on the shipment- I have gotten the blue with and without the short circuit protective strip. They have always come with the PCB voltage protection. The other grey ones always have both. This new price is a huge bargain provided they are protected; I noticed after taking a close look that they do not say they are. I'd get the other grey Trustfires if you need them immediately, and if not, wait until these are clarified.
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    post edited by gearhounds on 1/16/2009 at 11:57 AM
  • MajeedM Friday, January 16, 2009 11:57 AM Reply
    Will the short circuit protective strip cause any problem if I used this battery in a laptop battery pack ?
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  • captjimjam Friday, January 16, 2009 1:00 PM Reply
    They will be slightly longer, but it will mean they will be protected for overcharging etc.
    Addicted to yellow envelopes!--UK--
    I'm a forum only moderator and not part of DX staff.
    To contact DX staff use: http://services.dealextreme.com
    New customer guide: www.tinyurl.com/help-dx
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  • MajeedM Friday, January 16, 2009 1:11 PM Reply
    But it wont interface with the charging circuit that is inside the laptop battery pack right ?
    So it will only protect when there is only a short circuit ?

    Thanks
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  • gillestugan Friday, January 16, 2009 2:09 PM Reply
    I suppose you mean interfere... They may if the cut-off voltage when charging is lower on the batteries PCB than on the circuit inside the laptop battery.
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  • MajeedM Friday, January 16, 2009 3:02 PM Reply
    can this protection be removed from the battery ?
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