This is just one of the 252 (that's right 252) battery cells located in 2 batteries below the crew quarters that ran the Pampanito's engines! This cell is a "guppy" type; The Pampanito used a "sargo" type that was slightly larger w/ more capacity! The lead-acid batteries added 208,000 pounds to the weight of the sub! NERD FACT - That's equal to approximately 332,800 Cheeky's!!!