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  1. M

    LiFePO4 Charger

    Just wondering if i can use any charger for Li-ion batteries to charge my LiFePO4 batteries, as long as voltage is the same :confused: Unfortunately my cheep Ultrafire WF-188 from Deal Extreme has difficulties charging almost all my batteries, including any CR123 both Li-ion and LiFePO4.
  2. M

    Best laser for long distance pointing

    Hi I am all new to lasers. I would like to buy a laser where the beam can be seen on long distances (kilometers) I am not interested in burning stuff. I am a little confused with all the options?? Which one would you recommend of these two from O Like? 400mW green laser torch...