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).
The testing of an S.3. Battery, number 156, removed from vehicle 10EX.
| Identifier | ExFiles\Box 54\1\ Scan252 | |
| Date | 12th May 1927 | |
| RR 238 (150 BKS.) (DB {Donald Bastow - Suspensions} 461-8-12-24) MP 306975 X46175 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E & Co. Order No.: JC 32. Customer's No.: Re Tests on S.3. Battery 156 This battery was removed from 10EX after having run 13,304 miles. On low rate discharge through a constant external resistance of 1180w 58.0 ampere hours were obtained. All cells shewed positive weakness on the Cadmium. After a good charge a high rate discharge test was taken through an external resistance of .100w. Initial amperes = 108 Time to 10v = 7.6 min " " 100 " = 12.0 " " " 90 " = 16.1 " " " 80 " = 17.1 " All cells shewed negative weakness on the Cadmium. The D.P.R & Boudo cells discharged equally in both tests. Signed: E.J. This Sheet must be filed on completion of the work. | ||