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).
The leakage of charge test for the latest standard Chloride 6RXE5 12-volt battery after standing for six months.
| Identifier | WestWitteringFiles\G\September1921\ Scan40 | |
| Date | 16th September 1921 | |
| ORIGINAL. To R & E.{Mr Elliott - Chief Engineer} from EPC. c. to CJ. AFN. c. to Rg.{Mr Rowledge} & Da.{Bernard Day - Chassis Design} c. to R/ & EP.{G. Eric Platford - Chief Quality Engineer} c. to R.R. of America Inc. EFCS/16.9.21. x3980 LEAKAGE OF CHARGE TEST OF LATEST STANDARD x4288 CHLORIDE 6RXE5 12 VOLT BATTERY. Further to our EFCS/724.1.21 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 RXE 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. | ||