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Thread: Any info on Surefire brand 18650 batteries?

  1. #1

    Default Any info on Surefire brand 18650 batteries?

    Hi all, Surefire offers a few "DFT" lights that accept 18650 batteries, and they offer their own Surefire branded batteries and charger. The battery is a protected 18650 3400 mAh battery. Anyone have any anyone have any reliable info on this battery? (Is it a rebrand of some commonly available battery? Is there anything special about it, like high discharge current?). I'm picking up a Fury DFT and was hoping not to need proprietary Surefire batteries. I've got a bunch GA's and was hoping to just use those ...

  2. #2
    *Flashaholic* ChrisGarrett's Avatar
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    Default Re: Any info on Surefire brand 18650 batteries?

    Quote Originally Posted by Frottage View Post
    Hi all, Surefire offers a few "DFT" lights that accept 18650 batteries, and they offer their own Surefire branded batteries and charger. The battery is a protected 18650 3400 mAh battery. Anyone have any anyone have any reliable info on this battery? (Is it a rebrand of some commonly available battery? Is there anything special about it, like high discharge current?). I'm picking up a Fury DFT and was hoping not to need proprietary Surefire batteries. I've got a bunch GA's and was hoping to just use those ...
    The first of their li-ion 18650 iterations was the 2600mAh cell, which was probably the Sanyo UR 18650 FM, a good medium capacity cell that held/holds its voltage well. It's a bit dated, however. I have them here in a power bank and some lights and they work well. I use naked, unprotected cells.

    The 3400mAh offering is probably the famed Panasonic NCR18650B 3400mAh cell with a protection circuit added by Keeppower, EVVA, or anybody else slinging the PCB hash.

    Another tried and true li-ion, but it too is a bit long in the tooth.

    I got into a discussion about what type of drain the duel fuel lights require, with somebody saying 7A, but the NCR-B gets taxed above 5A+, so who knows?

    1500LM from a modern LED shouldn't be over 3-5A, so the NCR-B would be good to go.

    Chris
    Convoy: S2, S2+, M1, M2, Fenix: P1D, PD32, HL30, ET: D25C Ti, SF: 6P, ZL: SC-600, Klarus: P2A, Jetbeam: BA-20, Icon: Rogue 1, L3: L10, Xeno: E03, ShiningBeam: I-Mini, Olight: i3s, SWM: D40A, M11R, V11R, Maglite: 6Ds, MMs, Solitaires, LaCrosse BC-700, Maha C-9000, XTAR VP2, MP1S, XP1, MC1+, WP2 II, NiteCore i4, v2.

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