modality - a method of therapy that involves physical or electrical therapeutic treatment. rehabilitation - the treatment of physical disabilities by massage and electrotherapy and exercises.
Alkaline AA batteries are rated 1.5 volts, while NiMH AA batteries are rated at 1.2 volts. NiMH generally refers to a battery being rechargeable and to the materials from which the battery is constructed.
Re: Going from (6) 6 volt batteries to (3) 12 volt. There are 12 volt golf cart batteries. Thats what you have (probably) The 12 volts the OP is talking about are either Automotive type starting batteries or Marine type.Marine deep cycle are not true deep cycle batteries.e: Going from (6) 6 volt batteries to (3) 12 volt. Sure...it'll work just won't have very long run time and you'll replace them more often. They will actually cost more in he long run than just buying the right batteries.