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).
Specifications and ordering of batteries, including dimensions, capacity, and performance requirements.
| Identifier | WestWitteringFiles\D\November1919\ Scan7 | |
| Date | 1st November 1919 | |
| To DA.{Bernard Day - Chassis Design} from R.{Sir Henry Royce} -2- N10/C15/11/19 Contd. through my suggesting that the cells should be separate. If this is so, we might abandon this particular requirement for the time being. By Wednesday next I hope to hear that Mr. Clark has been able to place an order for some batteries that will go within the dimensions available, without the excessive depth, and which will have at least three-quarters of the ampere hour capacity. It will be understood that they must be capable of bearing the rate of charge and discharge necessary to maintain the lights, and provide current for the starter, and use the whole of the available current from the dynamo without raising the voltage excessively through internal resistance. R.{Sir Henry Royce} [Handwritten notes below] 6 66 --- 55 BXE 5 44 BXE 4 | ||