A Question related to charging an NiMH 6volt Battery

Thread Starter

logic98

Joined Feb 8, 2009
2
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?
 

Audioguru

Joined Dec 20, 2007
11,251
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.
 
Top