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.
The battery industry standard is a 20 hour rate, i.e. how many amperes of current the battery can deliver over 20 hours at 80 degrees F until the voltage drops to 10.5 volts for a 12 V battery and 21 volts for a 24 V battery.