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).
Regulator controlled or auto switch systems and the maximum voltage for a full battery charge.
| Identifier | WestWitteringFiles\R\2October1927-November-1927\ 9 | |
| Date | 10th October 1927 | |
| Contd. -2- EFC1/T10.10.27. This would appear to indicate, therefore, that in any regulator controlled or auto switch system in which the maximum voltage can reach 16.0, full charge will be ultimately received by the battery. JC.92 attached. EFC. | ||