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).
Test results for a battery after 30,000 miles, detailing low and high rate discharge performance.
| Identifier | ExFiles\Box 54\1\ Scan297 | |
| Date | 20th August 1928 | |
| R.R. 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 431-8 12 24) MP 306975 X461SS{S. Smith} ROLLS-ROYCE, LTD. INSTRUCTIONS. To: C.T.C. Order No. J.C.122. Customer's No. X461SS{S. Smith} Re Tests on S3 Battery (156) This battery has now run nearly 30,000 miles on the road. On Low Rate Discharge through an invariable external resistance of 1.80w, 56.9 ampere hours were realised. All cells shewed positive weakness. On High Rate Discharge through a constant external resistance of .100w. Initial amperes = 103 Time to 100" = 6.5 min " " 90" = 15.2 " " " 80" = 16.7 " All cells shewed negative weakness & discharged equally. Signed: G.J. This Sheet must be filed on completion of the work. | ||