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 testing requirements including torque, durability, and road tests.
| Identifier | ExFiles\Box 154a\3\ scan0224 | |
| Date | 27th March 1936 guessed | |
| BATTERY. (1) Starting torque and durability. (2) Weight. 100 hours bump test. 15,000 miles in France and England, including 5,000 London traffic. | ||