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).
Leakage of charge test report for a Chloride 6BXE5 12-volt battery.
| Identifier | ExFiles\Box 49\5\ Scan318 | |
| Date | 6th September 1921 | |
| X4288 To R & E. {Mr Elliott - Chief Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} c. to CJ. &PN. {Mr Northey} c. to Rg. {Mr Rowledge} & Da. {Bernard Day - Chassis Design} c. to By. {R.W. Bailey - Chief Engineer} & EP. {G. Eric Platford - Chief Quality Engineer} c. to R.R. of America Inc. X.3989 LEAKAGE OF CHARGE TEST OF LATEST STANDARD X.4 288 CHLORIDE 6BXE5 12 VOLT BATTERY. Further to our EFC {E. Fowler Clarke - Electrical Engineer} 3/T24.1.21 in which leakage of charge test of a battery which had stood for three months without charge was reported, we have now, as therein stated, completed a further leakage of charge test of the latest standard Chloride 6 BXE 5 battery, after standing six months. Two cells, Nos. 1 & 2 reckoned from the negative end, stood apart from the rest of the battery, the other four remaining linked together. The battery had been fully charged previous to standing and the ampere hours obtained on discharge at the end of the period were in accordance with the following table:- Cell.No. Ampere-Hours. 1. 26.65 2. 45.8 3. 37.5 4. 32.5 5. 50.8 6. 34.15 It will be seen from this that outside surface leakage on the battery is of no moment. (In this case, of course, the outside was dry and the statement might have to be modified if the surface was wet with acid). It will be seen that internal leakage in individual cells is the principal factor, and this varies considerably from cell to cell. Contd. | ||