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).
Summary of battery complaints over a six-month period for various car models.
| Identifier | ExFiles\Box 47\3\ Scan490 | |
| Date | 1st June 1932 guessed | |
| -17- 20. HP. 25 HP. PH.I. PH.II. TOTAL. Grand TOT L. REMARKS. BATTERIES. June Quarter. C.C. - - - 5 5 } 5 W.P. - - - - Previous " C.C. - - 2 4 6 } 7 W.P. - - - 1 Six months. - - 2 10 12 12 These are mostly complaints of failure to hold charge. | ||