I've built this circuit to charge my old 8.4V 7 Cell 80mAH NiCad batteries; http://sv1bsx.50webs.com/charger/charger.html
For the resistor I've used a total of 160 Ohm for a 8mA charging current. I'm using a variable PSU (0-18V 30A) set at 13.5V to supply the circuit.
What I want to know is, is this circuit ideal for NiCad longevity, am I using the right Voltage, is it crude, and are there any better ways to charge my now unobtainable NiCad's for a long lasting service, or is this circuit just the ticket?
I want to look after the pictured batteries the best I can, as they are 20Yrs old and now unobtainable. They are used as the power source for some old radio equipment.
Is this the "ideal" NiCad charger, or is it crude?
in Electronic Projects Design/Ideas
Posted
Hi Fellas,
I've built this circuit to charge my old 8.4V 7 Cell 80mAH NiCad batteries; http://sv1bsx.50webs.com/charger/charger.html
For the resistor I've used a total of 160 Ohm for a 8mA charging current. I'm using a variable PSU (0-18V 30A) set at 13.5V to supply the circuit.
What I want to know is, is this circuit ideal for NiCad longevity, am I using the right Voltage, is it crude, and are there any better ways to charge my now unobtainable NiCad's for a long lasting service, or is this circuit just the ticket?
I want to look after the pictured batteries the best I can, as they are 20Yrs old and now unobtainable. They are used as the power source for some old radio equipment.
Cheers.
All the best,
Damian