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).
Battery cell capacity and high rate discharge tests.
| Identifier | ExFiles\Box 54\2\ Scan213 | |
| Date | 11th August 1925 guessed | |
| 2 J.090. & realised an ampere hour capacity of 32.9 all cells showing positive weakness. On High Rate Discharge Initial amperes = 101.2 Time to 100 " = 2.1 min " " 90 " = 7.7 " " " 80 " = 10.1 " All cells showing negative weakness. q.g. | ||