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 poor quality of batteries, specifically the De Martis battery, and a probable failure during a vibration test.
| Identifier | ExFiles\Box 38\5\ Scan199 | |
| Date | 23th February 1922 guessed | |
| -2- Contd. action of the sulphuric acid, the celluloid in most present day batteries being of a particularly poor quality. He has had some experience of the De Martis battery He says that after a few discharges the positive plates become so soft that shorting occurs through the active material in the positive plates reaching through the separators and touching the negatives. From this it seems probable that the vibration test on our De Martis battery would destroy it. [Watermark text] DICKINSON BOND 1804 EFC. MADE AT CROXLEY | ||