From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Instructions and results for a re-test on an S1 battery after it has run 12,956 miles.
| Identifier | ExFiles\Box 54\1\ Scan255 | |
| Date | 6th September 1927 | |
| RR 238 (150 BKS.) (DD 461-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. x4617 S. To E.T.L. 6-9-27 Order No. J.C.94. Customer's No. x 4617 S. Re Test on S1 Battery (154) This battery has now run 12,956 miles & has been removed from 3EX for test. On high rate discharge through a constant external resistance of .100 w. Initial amperes = 104.6 Time to 104" = 1.8 min. " " 100" = 6.7 " " " 90" = 11.1 " " " 80" = 12.3 " All cells discharged equally & showed negative weakness on the cadmium. 997 Signed E.F. This Sheet must be filed on completion of the work. | ||