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).
Typed letter to the editor of 'The Autocar' regarding battery overcharging in British cars and the benefits of dynamos with a falling output.
| Identifier | ExFiles\Box 54\1\ Scan059 | |
| Date | 30th November 1925 | |
| Copy for. C. Fowler Clark Esq. [Faint inverted text from reverse:] The Editor, 'THE AUTOCAR' 30th November 1925. The line of Rolls Royce (always ahead of others) is a guiding star in this matter and this is another proof of what is 'much in doubt', see people again the policy 'You tell us what you have and Rolls Royce will see if it can do a bit of copying along these lines would'. Yours faithfully, M/5. Gaining and doing good. [Main document text:] The Editor, "The Autocar", 20m Tudor Street, E.C. 30th November 1925. Dear Sir, Batteries and Electrical Equipment. Mr. Banister's letter (34296) on this subject is very interesting. There is no doubt that 90% of batteries on British cars of to-day are very much overcharged and their life shortened and the necessity to top up with distilled water much more frequent than it need be. As Mr. Banister says, if only the British car makers would buy their electrical equipment from specialist firms (as is done in every other car producing country) instead of as a set complete, they would be able to make better use of the specialised knowledge available and should be able to obtain better, cheaper and lighter apparatus as a result. A remedy Mr. Banister suggests is to have a Dynamo with a falling output. Mr. Banister mentions the firm of Rolls Royce who obtain their equipment from specialist firms, this giving a lead to other perhaps less enterprising or less knowledgeable firms, but he omits to say that the R.R. Dynamos, both on the 20 H.P. and 40/50, have this desirable feature of falling output. Other firms would do well to copy that also, then we should hear less of battery overcharging. | ||