The energy source called this cell uses 2 chemicals & an electrolyte to get continuous power instead of storing a charge
The electric charge symbols of plus (+) and minus () 
indicate that the... [DOC] [TLE] How Lead Acid Batteries Work: Battery Basics - Progressive Dynamics [PAR] We offer basic information how lead acid batteries work, using the usual 6 or ... 
All lead acid batteries consist of flat lead plates immersed in a pool of electrolyte.