A Question related to charging an NiMH 6volt Battery

Discussion in 'General Electronics Chat' started by logic98, Feb 14, 2009.

  1. logic98

    Thread Starter New Member

    Feb 8, 2009
    2
    0
    Please some one guide me.
    If I use 7606 Regulating IC as power supply to Recharge 5 cell in series of NiMH type, where one cell = 1.2 Volts, will the battery charging stops when it goes to 6 Volts, or the Battery overcharges?
     
  2. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    Each Ni-MH cell charges to 1.4V or 1.5V when fully charged. So 6V is too low for a charger, it must be about 7.0V to 7.5V for 5 cells.
    A battery charger must detect when a battery is already charged and refuse to over-charge it, and it must also shut off when it detects that the battery is fully charged.
    Without detecting that the battery is fully charged then it will keep on over-charging which will either destroy it or it will shorten its life.
     
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