CONTENTS 



Page 



4 INTRODUCTION 



5 TEST CONSIDERATIONS 

 9 TEST PROGRAM 



16 DISCUSSION 



18 CONCLUSION 



18 RECOMMENDATIONS 



TABLE 



Page Table 

 15 1 Schedule of pressure tests 



ILLUSTRATIONS 



Schematic cross -section of battery and test 



case 

 Photograph of Willard batteries used in tests 

 Interior view of battery box used during 



Project NEKTON II 

 Pressure chamber used in tests 

 Control board for pressure chamber 

 Exterior views of battery box used during 



Project NEKTON II 

 12 7 Graph of pressure and temperature variations 



programmed during simulated dives to 



24, 000 feet 

 Graphs of tests 



New battery boxes installed on TRIESTE 

 Navy standard battery as modified for use 



on TRIESTE 



Page 



Figure 



6 



1 



7 



7 



2 

 3 



8 



9 

 10 



4 

 5 

 6 



12-14 



8-12 



17 



13 



17 



14 



