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).
Electrical experimental record sheet logging tests on a 6-volt monobloc battery, tracking dates, locations, remarks, and mileage from 1926 to 1929.
| Identifier | ExFiles\Box 168b\3\ img207 | |
| Date | 19th April 1926 | |
| X7535P ELECTRICAL EXPERIMENTAL RECORD SHEETS X. & No:- 7535P P4/RBDH/1/Battery/183) Date on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered. | Total miles. 16-12-26 | fab. | 21-12-26 | Received charged 6 volt monobloc. 21-12-26 | 14EX | 14-3-27 | [unclear] | | | 202 | 202 17-10-27 | Bench Test | 20-10-27 | Long Night Rate Discharges Report - SC 102 20-10-27 21-10-27 | 14EX | 19-11-27 | | 1060 | 1832 | 772 | 774 a 18-11-27 | " | 20-4-28 | | 1832 | 2743 | 911 | 981 16-6-28 | " | 3-7-28 | | 2743 | 3342 | 599 | 12484 3-7-28 | " | 14-11-28 | | 3342 | 4191 | 849 | 13333 14-11-28 | " | 15-1-29 | | 4191 | 7449 | 3258 | 16591 19-1-29 | Bench Test | 24-1-29 | Report - SC152 24-1-29 HR not fitted. 26-2-29 | 6MS | 1-7-29 | No further tests 19.4.26. | ||