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  1. #1
    Junior Member
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    Feb 2009
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    battery question

    I'm looking to build a battery pack for my light and I'm getting a little confused. I have 4 18650 3.6v 2000mah cells (I think, they came out of a laptop). I'll be wiring them in series for 14.4v. I'm almost positive they are unprotected cells as they are wired to a pcb currently. I don't want to use the current pcb as its the wrong shape and I have no idea what the specs on it are or how its wired.

    My question is how should I go about protecting and charging the pack? Should I use a pcb and a smart charger, or use a pcb that has a charging circuit built in such as this one? http://www.batteryspace.com/index.as...OD&ProdID=4890

    I would prefer to use the all-in-one board as it will let me reuse the ac adapter that came with the laptop. Are there any disadvantages to going this route?

  2. #2
    Member 24X18's Avatar
    Join Date
    Apr 2009
    Location
    CT
    My Bikes
    Scwinn S-750 Elec. Scooter
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    Lithium-ion...

    I've experimented a bit--with Li-Ion..I have found from CELL Phones...
    attempting to create High Intensity lights..not real good...
    ===
    If I might make a simple suggestion...
    A Product...from HUSKY...
    Called the ReChargeable Worklight...
    By pulling off the Halogen Light..and useing your wiring skills...
    You get a 12volt...3-amp...Rechargeable...
    Part#HSK142
    ===
    I paid like...$$26.00 at HOME DEPOT..its really a excellent product...[end]

  3. #3
    Ben totoroben's Avatar
    Join Date
    Aug 2006
    Location
    Cleveland. Shaker Heights
    My Bikes
    Rans V-Rex, Schwinn Traveler, Panasonic Sport
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    whatever you do be careful. And if you do build a pack with safety circuits, charge it in a metal bucket. Li Ion isnt your friend.

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