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).
Results of an efficiency test on a BXRE5 Chloride battery after 20 discharge and charge cycles.
| Identifier | ExFiles\Box 49\5\ Scan326 | |
| Date | 28th January 1922 | |
| X4288 95293. 28.1.22. F.D.165. EFC. X.664. X.4288. The standard BXRE5 Chloride battery upon which the efficiency test has been carried out has given 30 amp. hours after 20 discharges and charges. For original capacity of this battery see curve previously handed over in connection with this experiment. L.F. [Watermarks] DICKINSON BOND 1804 MADE IN CROXLEY | ||