2camjohn
Member
I am making a simple trickle charger for a NiMh battery.
It has a 12V DC power supply which is a cheap 'wall wart' type. It says it is regulated but I have heard these types of supplies are quite unsteady.
The circuit will simply be a resistor and diode,.
I am not sure whether charging a battery requires a very steady power supply.
Should I use a voltage regulator to step the supply voltage down to a steady 9V?
Or will it be fine to charge from the 12V source?
What, if anything can happen when charging a battery with an unsteady voltage?
Thanks
John
It has a 12V DC power supply which is a cheap 'wall wart' type. It says it is regulated but I have heard these types of supplies are quite unsteady.
The circuit will simply be a resistor and diode,.
I am not sure whether charging a battery requires a very steady power supply.
Should I use a voltage regulator to step the supply voltage down to a steady 9V?
Or will it be fine to charge from the 12V source?
What, if anything can happen when charging a battery with an unsteady voltage?
Thanks
John