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).
Costs and status of five different experimental batteries.
| Identifier | ExFiles\Box 49\5\ Scan274 | |
| Date | 10th March 1921 | |
| X 4288 To R. {Sir Henry Royce} from EFC. {E. Fowler Clarke - Electrical Engineer} c. to CJ & PN. {Mr Northey} c. to By. {R.W. Bailey - Chief Engineer} & Bn. {W.O. Bentley / Mr Barrington} c. to Da. {Bernard Day - Chassis Design} & EP. {G. Eric Platford - Chief Quality Engineer} c. to EWI. for R.R.Inc. EFC {E. Fowler Clarke - Electrical Engineer} 2/T10.3.21. X.664 - BATTERIES. X.3629. X.979. X.4258. X.1198. Further to our EFC {E. Fowler Clarke - Electrical Engineer} 3/T7.3.21, we have now obtained the costs of the various batteries as follows :- 1. Chloride 6 BXES battery with all the latest improvements, three experimental samples of which we have recently received from the Chloride Co., sample cell of which is being sent to Mr. Royce. Price for 100 batteries, delivered our works, £8-10-0 each. 2. Tudor batteries, two experimental samples of which we have recently received from the Tudor Company and sample cell of which is being sent to Mr. Royce. Price £7-17-6 per battery. 3. De Martis accumulator, one experimental sample of which we have recently received and which is being put through our routine tests. Price £8-14-7, less 2%. 4. 6-LXR-9-1 U.S.A. Exide battery, one experimental sample of which we have recently received from America - Price not obtainable at the moment. 5. Willard S.J.R.27 one experimental sample of which we received some time ago from U.S.A., and of which one cell has failed by leakage of electrolyte. Price £6-12-8 per battery. EFC. {E. Fowler Clarke - Electrical Engineer} | ||