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).
Letter from accumulator manufacturers Peto & Radford regarding the laboratory testing of a 12-volt battery.
| Identifier | ExFiles\Box 38\5\ Scan294 | |
| Date | 19th December 1922 | |
| X 3398 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4-LINES. PRIVATE BRANCH EXCHANGE. TELEGRAMS CONCENTRATION, SOWEST, LONDON. Manufacturers of P & R Accumulators. Established 1889 PETO & RADFORD Proprietors :- Pritchett & Gold and E.P.S. Company Ltd. 50 GROSVENOR GARDENS, LONDON. S.W.1. DIRECTORS: SIR ARCHIBALD D.{John DeLooze - Company Secretary} GOLD F.{Mr Friese} C. GRAHAM MENZIES O.R.D. PRITCHETT C. R.{Sir Henry Royce} N. MINCHIN T. W. PRITCHETT WILLIAM PETO DAVID WILLOCK. OUR REF. M/C 1912. YOUR REF. 19th December 1922. Messrs. Rolls Royce Ltd., Nightingale Road, DERBY. Dear Sirs, For the attention of Mr. Fowler Clark. With regard to the 12 volt B.D.T. Battery returned to us which did 11,000 miles on one of your cars, we have now had this in the laboratory and washed it out and taken a discharge. We obtained 6 amperes for 9.6 hours down to 1.8 volts per cell, which in our opinion, is not at all bad. There is however, one cell letting the battery down and if it is allowed to stand this cell gradually pulls it down and we should like to seek for the cause, but of course cannot do so without opening it up. We would be glad to have your instructions but suggest opening it up and giving you a report as to what we find. Awaiting the favour of your reply, Yours faithfully, PETO & RADFORD. C.R.N. Minchin | ||