modality - a method of therapy that involves physical or electrical therapeutic treatment. rehabilitation - the treatment of physical disabilities by massage and electrotherapy and exercises.
An AA battery is a 1.5 volt battery so if you connected 8 together in series you would have the 12 volts, but you would have no where near the amount of amps necessary to turnâ¦ the engine over.
That means overall, your supply must be between 2.7 and 3.5V so you would probably choose 3.0V e.g. two series connected AA batteries. As the battery starts to go flat, the voltage will decrease and when it gets to around 2.7V the first electronic component might start to operate incorrectly.