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).
48 coil medium output P.2. dynamo and methods for checking battery charge.
| Identifier | ExFiles\Box 62\3\ scan0106 | |
| Date | 16th January 1931 | |
| EFC. FROM E.{Mr Elliott - Chief Engineer} X6004. E2/M16.1.31. X.6004. 48 COIL MEDIUM OUTPUT P.2. DYNAMO. Thank you for your memo. EFC1/AD14131. and for issuing the necessary corrections to E1/M10131. I am glad to hear you are settling now in a more favourably situated office. How is SG{Arthur F. Sidgreaves - MD}'s car going on with regard to maintaining charge? One of the difficulties is ascertaining the state of charge of the battery, which means taking the gravity of the electrolyte. I am going to try one of the meters shewn on attached leaflet for my car to tell me when to charge and when not to charge, on the assumption that the reading will be near enough if taken with some load on the battery. E.{Mr Elliott - Chief Engineer} RECEIVED HS{Lord Ernest Hives - Chair} 19 JAN 1931 | ||