CENTRAL SCIENTIFIC CO., CHICAGO, U. 8. A. 



73 



No. 1050A, 



Plates of No. 1048C. 



No. 1048E. 



BATTERIES, Edison Storage. These batteries are composed of negative plates of iron oxide and 

 positive plates of nickel oxide immersed iu an alkaline solution. The retaining cans are of 

 corrugated sheet steel, welded at the seams, and electroplated with nickel, which protects the 

 steel from rust and gives each cell an attractive appearance. They are made in two types: Type 

 '"A" for heavy current duty; Type "B" for lighter work, such as for ignition, small lighting 

 outfits, clocks, bells, etc. These batteries are guaranteed for five years if directions are care- 

 fully followed. DISTINCTIVE FEATURES. 



Freedom from obnoxious fumes. 

 No injury from short circuits. 

 Low maintenance cost. 



Light weight and small space occupied. 



No sulphating or deterioration on open circuit. 



No breakage of containers. 



Extremely long life in service. 



Freedom from sensitiveness to external conditions such as temperature, vibration, concussion, etc. 



Number A B C D E F 



Type Bl-H B-2 B-4 B-6 A-4 A-6 



No. of positive plates 1 24646 



Output at normal discharge rate, ampere 



hours 18.75 37.5 75.0 112.5 150.0 225.0 



Charging rate, amperes 3.75 7.5 15.0 22.5 30.0 45.0 



Discharge rate for 8 hours, amperes 2.25 4.7.") 9.5 14.0 18.5 28.0 



Discharge rate for 5 hours, amperes 3.75 7.5 15.0 22.5 30.0 45.0 



Mean effective internal resistance, ohms. .024 .012 .006 .004 .003 .002 



Length of jar, inches 1.55 1.55 2.58 3.75 2.64 3.80 



Width of jar, inches 5.03 5.03 5.09 5.09 5.13 5.13 



Height of complete cell, inches 10.44 8.69 8.69 -.7- 13.38 13.38 



Weight of renewal solution per cell, Ibs. 2.0 1.0 1.7 2.5 2.9 4.3 



Wgt. of cell, complete with electrolyte, Ibs. 4.9 4.7 7.5 10.8 13.9 19.4 

 1048. COMPLETE CELL, with electrolyte, but not 



charged 84.95 7.26 9.68 13.31 16.34 24.20 



BATTERIES, Edison Storage, supplied in sets of five, assembled in standard suspension trays 

 contained in a steel battery box. The initial voltage of each set is 6.5 volts and the direct cur- 

 rent voltage necessary to charge is 9. 



No ". A B 



Type B-2 B-4 



Output at normal discharge rate, ampere hours 37.5 75 



Charging rate, amperes 7.5 15 



Weight. Ibs., in tray 27 41.5 



Height, inches . . .' 10% 10*4 



Width, inches 7\ 7% 



Length, inches IIT^ 17% 



1050. BATTERY, complete in box 39.60 51.70 



1051. ELECTROLYTE for renewal o" Edison Storage Batteries. In cans. 



No A B 



No. of pounds in can 2 5 



Per can .40 .75 



