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).
Battery record log detailing service, testing, and performance from 1921.
| Identifier | ExFiles\Box 48\3\ Scan056 | |
| Date | 8th March 1921 | |
| x4206. BATTERY RECORD. Battery No. 6D. Battery U.S.A Exide 6LXR9E. No. 4206. Date. Service on. If on car miles run. If on test notes re use. Total miles run. Remarks re performance. 7/3/21 | Bench | — | Expt. | — | OK. 6.8.21 | Tests | — | Routine | — | OK 7.9.21 | Waiting fitting to Car | — | — | — | OK 20.9.21 | Ignition | — | — | — | OK 7.10.21 | Rig spare for Gos H. {Arthur M. Hanbury - Head Complaints} 10.10.21 | Bench Test. | — | H.R. discharge. .100 w. | — | failed to pass specification 7.11.21 | In Shop. Main Set. | | | | One Cell leaking. Leaky cell shorted. 8.3.21. | ||