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).
Battery performance issues with sulphation and capacity, proposing further analysis by the Experimental Department.
| Identifier | ExFiles\Box 164\3\ img092 | |
| Date | 15th December 1937 | |
| - 2 - the result was interesting, I could not make the automatic control overcome the sulphate and falling capacity until I set it so high it would only cut out after hours of "gassing", and only then could I keep my plates right. Finally, I resorted to hand control and kept my second battery in service satisfactorily for a life of nearly twice the original battery under auto control. I propose to let the Experimental Department have the battery out of my car, as it has run some 35,000 miles for a period of time of two years, and I would like to see whether my battery which has been regularly "topped up" and has done practically no night running and there is therefore no excuse for any sulphating, except that which may be present as the result of wrong charging conditions. BY.{R.W. Bailey - Chief Engineer} | ||