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).
Performance report and discharge test results for a battery after 13,305 miles.
| Identifier | ExFiles\Box 58\3\ Scan173 | |
| Date | 4th February 1931 | |
| C.7.6. X4642P. 4-2-31 J.D.116. X4642P. PART BD {Mr Berend} 7E-16 Battery from 18 GW (226) This battery has now ran 13305 miles satisfactorily & is 10 months old. On Low Rate Discharge 56.0 ampere hours were realised, * all cells showing positive weakness. On High Rate Discharge Initial amperes = 105.9 Time to 100 " = 9.5 mins " " 90 " = 13.3 " " " 80 " = 14.6 " All cells showing negative weakness on the cadmium. It was suggested this battery should be dismantled for examination after 10000 miles but on its good performance I do not consider this necessary. G.J. | ||