no, if you charge 9 volt battery with 12 volt battery you will destroy 9 volt battery
You cannot compare these two totally different things. As far as amperage the charger puts out more amps if it is an auto battery charger and also puts out 12 volts. If you are talking about a 9 volt battery charger then the battery may or may not be more powerful, it depends on how many mii-amps the charger is putting out.
No. For one thing, you can't recharge just any old 9volt battery; it has to be a specially-designed rechargeable for which there is a specially designed charger. For another, a car battery charger puts out about 13-15 volts.
Most of the mobile phones have batteries of less than 5V rating, mostly up to 3.7V.Chargers are typically rated for less than 5V.Caution: It is not safe to charge these with a 9V charger. The battery may explode..
No. The windings are set for 9vdc and will not step down to 5vdc.
****NEVER USE AN NIMH BATTERY CHARGER TO CHARGE A LITHIUM OR LITHIUM-ION BATTERY!**** I get asked this all the time. Using an NiMh charger to charge this battery will make it EXPLODE or CATCH FIRE. The fire CAN NOT be extinguished with water and CAN NOT be extinguished with a household fire extinguisher.
No, not possible. The charger has to go to higher volts than the battery being charged.
no
They might burn but they would be very dim and the battery would last for a very short time. They are 12 volt lights therefore it will take 12 volts for them to burn at the level of brightness that they should.
A car battery has six cells each producing two volts. A 9v alkaline battery has six cells each producing 1.5 volts. There are some obvious differences, like that a car battery can put out hundreds of amps and a 9v alkaline can only put out hundreds of milliamps, a 9v battery weighs 45 grams versus 45 pounds for a car battery, and so on.
you better not. you need a 9V regulator for this, not a resistor!
It depends on the battery used. Older batteries batteries, like Cadmium, will be relatively heavy, while 9V alkali batteries today weigh about 100g and 9V lithium batteries weigh about a 3rd of that at 33,8g