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).
Salient points of the 40/50 battery specification number 801.
| Identifier | ExFiles\Box 54\2\ Scan045 | |
| Date | 23th September 1924 | |
| X 4617 23.9.24. X.664 X4617 SALIENT POINTS OF 40/50 BATTERY SPECIFICATION No.801. (1) Capacity 70 ampere-hours approximately. (2) (3) High rate discharge 110 amperes for six minutes. (4) Maximum charging rate on chassis 11 amperes. (7) Weight, under 110 lbs. (8) Absolute limit of overall dimensions:- Length 20.125" Width 6.250" Height 10.075" (11) Terminals - of stud and nut type, making flat surface connection. | ||