I am a student of Electrical Engineering. I am working on a circuit which requires a 9 volts 550mAh battery as a source. This battery source is a rechargeable one. Now, while going through some of the articles, I came to know that for recharging a 9 volts battery, we require a charger which has the output of at least 9.5 volts.
My question is that can I use a 12 volt 1.5 amps adapter to charge a 9 volt 550mAh battery? If yes, then should I make a resistor divider circuit to make it equal to 9.5 before connecting to battery or is charging the battery at 12 volts okay?
Also is a 9 volt 1.5A ac to dc adapter sufficient to charge a 9 volts battery? Some of the articles I read clearly stated that at the least 9.5 volts charger is required?
All suggestions are welcome.
Thank you.
My question is that can I use a 12 volt 1.5 amps adapter to charge a 9 volt 550mAh battery? If yes, then should I make a resistor divider circuit to make it equal to 9.5 before connecting to battery or is charging the battery at 12 volts okay?
Also is a 9 volt 1.5A ac to dc adapter sufficient to charge a 9 volts battery? Some of the articles I read clearly stated that at the least 9.5 volts charger is required?
All suggestions are welcome.
Thank you.